hwraid
/
hd-idle
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Imported Upstream version 1.05

This commit is contained in:
Mario Fetka 2017-04-19 13:33:37 +02:00
commit 0343893f09
16 changed files with 1443 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
CHANGES Normal file
View File

@ -0,0 +1 @@
Please refer to debian/changelog

341
LICENSE Normal file
View File

@ -0,0 +1,341 @@
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by
the GNU Library General Public License instead.) You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.
To protect your rights, we need to make restrictions that forbid
anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must give the recipients all the rights that
you have. You must make sure that they, too, receive or can get the
source code. And you must show them these terms so they know their
rights.
We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.
Also, for each author's protection and ours, we want to make certain
that everyone understands that there is no warranty for this free
software. If the software is modified by someone else and passed on, we
want its recipients to know that what they have is not the original, so
that any problems introduced by others will not reflect on the original
authors' reputations.
Finally, any free program is threatened constantly by software
patents. We wish to avoid the danger that redistributors of a free
program will individually obtain patent licenses, in effect making the
program proprietary. To prevent this, we have made it clear that any
patent must be licensed for everyone's free use or not licensed at all.
The precise terms and conditions for copying, distribution and
modification follow.
GNU GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License. The "Program", below,
refers to any such program or work, and a "work based on the Program"
means either the Program or any derivative work under copyright law:
that is to say, a work containing the Program or a portion of it,
either verbatim or with modifications and/or translated into another
language. (Hereinafter, translation is included without limitation in
the term "modification".) Each licensee is addressed as "you".
Activities other than copying, distribution and modification are not
covered by this License; they are outside its scope. The act of
running the Program is not restricted, and the output from the Program
is covered only if its contents constitute a work based on the
Program (independent of having been made by running the Program).
Whether that is true depends on what the Program does.
1. You may copy and distribute verbatim copies of the Program's
source code as you receive it, in any medium, provided that you
conspicuously and appropriately publish on each copy an appropriate
copyright notice and disclaimer of warranty; keep intact all the
notices that refer to this License and to the absence of any warranty;
and give any other recipients of the Program a copy of this License
along with the Program.
You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee.
2. You may modify your copy or copies of the Program or any portion
of it, thus forming a work based on the Program, and copy and
distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions:
a) You must cause the modified files to carry prominent notices
stating that you changed the files and the date of any change.
b) You must cause any work that you distribute or publish, that in
whole or in part contains or is derived from the Program or any
part thereof, to be licensed as a whole at no charge to all third
parties under the terms of this License.
c) If the modified program normally reads commands interactively
when run, you must cause it, when started running for such
interactive use in the most ordinary way, to print or display an
announcement including an appropriate copyright notice and a
notice that there is no warranty (or else, saying that you provide
a warranty) and that users may redistribute the program under
these conditions, and telling the user how to view a copy of this
License. (Exception: if the Program itself is interactive but
does not normally print such an announcement, your work based on
the Program is not required to print an announcement.)
These requirements apply to the modified work as a whole. If
identifiable sections of that work are not derived from the Program,
and can be reasonably considered independent and separate works in
themselves, then this License, and its terms, do not apply to those
sections when you distribute them as separate works. But when you
distribute the same sections as part of a whole which is a work based
on the Program, the distribution of the whole must be on the terms of
this License, whose permissions for other licensees extend to the
entire whole, and thus to each and every part regardless of who wrote it.
Thus, it is not the intent of this section to claim rights or contest
your rights to work written entirely by you; rather, the intent is to
exercise the right to control the distribution of derivative or
collective works based on the Program.
In addition, mere aggregation of another work not based on the Program
with the Program (or with a work based on the Program) on a volume of
a storage or distribution medium does not bring the other work under
the scope of this License.
3. You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of
Sections 1 and 2 above provided that you also do one of the following:
a) Accompany it with the complete corresponding machine-readable
source code, which must be distributed under the terms of Sections
1 and 2 above on a medium customarily used for software interchange; or,
b) Accompany it with a written offer, valid for at least three
years, to give any third party, for a charge no more than your
cost of physically performing source distribution, a complete
machine-readable copy of the corresponding source code, to be
distributed under the terms of Sections 1 and 2 above on a medium
customarily used for software interchange; or,
c) Accompany it with the information you received as to the offer
to distribute corresponding source code. (This alternative is
allowed only for noncommercial distribution and only if you
received the program in object code or executable form with such
an offer, in accord with Subsection b above.)
The source code for a work means the preferred form of the work for
making modifications to it. For an executable work, complete source
code means all the source code for all modules it contains, plus any
associated interface definition files, plus the scripts used to
control compilation and installation of the executable. However, as a
special exception, the source code distributed need not include
anything that is normally distributed (in either source or binary
form) with the major components (compiler, kernel, and so on) of the
operating system on which the executable runs, unless that component
itself accompanies the executable.
If distribution of executable or object code is made by offering
access to copy from a designated place, then offering equivalent
access to copy the source code from the same place counts as
distribution of the source code, even though third parties are not
compelled to copy the source along with the object code.
4. You may not copy, modify, sublicense, or distribute the Program
except as expressly provided under this License. Any attempt
otherwise to copy, modify, sublicense or distribute the Program is
void, and will automatically terminate your rights under this License.
However, parties who have received copies, or rights, from you under
this License will not have their licenses terminated so long as such
parties remain in full compliance.
5. You are not required to accept this License, since you have not
signed it. However, nothing else grants you permission to modify or
distribute the Program or its derivative works. These actions are
prohibited by law if you do not accept this License. Therefore, by
modifying or distributing the Program (or any work based on the
Program), you indicate your acceptance of this License to do so, and
all its terms and conditions for copying, distributing or modifying
the Program or works based on it.
6. Each time you redistribute the Program (or any work based on the
Program), the recipient automatically receives a license from the
original licensor to copy, distribute or modify the Program subject to
these terms and conditions. You may not impose any further
restrictions on the recipients' exercise of the rights granted herein.
You are not responsible for enforcing compliance by third parties to
this License.
7. If, as a consequence of a court judgment or allegation of patent
infringement or for any other reason (not limited to patent issues),
conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot
distribute so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you
may not distribute the Program at all. For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.
If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.
It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices. Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.
This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.
8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded. In such case, this License incorporates
the limitation as if written in the body of this License.
9. The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time. Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the Program
specifies a version number of this License which applies to it and "any
later version", you have the option of following the terms and conditions
either of that version or of any later version published by the Free
Software Foundation. If the Program does not specify a version number of
this License, you may choose any version ever published by the Free Software
Foundation.
10. If you wish to incorporate parts of the Program into other free
programs whose distribution conditions are different, write to the author
to ask for permission. For software which is copyrighted by the Free
Software Foundation, write to the Free Software Foundation; we sometimes
make exceptions for this. Our decision will be guided by the two goals
of preserving the free status of all derivatives of our free software and
of promoting the sharing and reuse of software generally.
NO WARRANTY
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Library General
Public License instead of this License.

54
Makefile Normal file
View File

@ -0,0 +1,54 @@
###############################################################################
#
# General Definitions
#
###############################################################################
ifdef DESTDIR
# dh_auto_install (Debian) sets this variable
TARGET_DIR = $(DESTDIR)/usr
else
TARGET_DIR ?= /usr/local
endif
LIB_DIRS =
INC_DIRS =
CC ?= gcc
CFLAGS += $(INC_DIRS) -Wall
LD = $(CC)
LDFLAGS += $(LIB_DIRS)
###############################################################################
#
# Main Dependencies
#
###############################################################################
TARGET = hd-idle
LIBS =
SRCS = hd-idle.c
OBJS = $(SRCS:.c=.o)
all: $(TARGET)
distclean: clean
clean:
rm -f $(OBJS) $(TARGET)
install: $(TARGET)
install -D -g root -o root $(TARGET) $(TARGET_DIR)/sbin/$(TARGET)
install -D -g root -o root $(TARGET).1 $(TARGET_DIR)/share/man/man1/$(TARGET).1
hd-idle.o: hd-idle.c
$(TARGET): $(OBJS)
$(LD) $(LDFLAGS) -o $(TARGET) $(OBJS) $(LIB_DIRS) $(LIBS)

131
README Normal file
View File

@ -0,0 +1,131 @@
Hard Disk Idle Spin-Down Utility
==============================================================================
hd-idle is a utility program for spinning-down external disks after a period
of idle time. Since most external IDE disk enclosures don't support setting
the IDE idle timer, a program like hd-idle is required to spin down idle
disks automatically.
A word of caution: hard disks don't like spinning up too often. Laptop disks
are more robust in this respect than desktop disks but if you set your disks
to spin down after a few seconds you may damage the disk over time due to the
stress the spin-up causes on the spindle motor and bearings. It seems that
manufacturers recommend a minimum idle time of 3-5 minutes, the default in
hd-idle is 10 minutes.
One more word of caution: hd-idle will spin down any disk accessible via the
SCSI layer (USB, IEEE1394, ...) but it will NOT work with real SCSI disks
because they don't spin up automatically. Thus it's not called scsi-idle and
I don't recommend using it on a real SCSI system unless you have a kernel
patch that automatically starts the SCSI disks after receiving a sense buffer
indicating the disk has been stopped. Without such a patch, real SCSI disks
won't start again and you can as well pull the plug.
You have been warned...
The latest version of hd-idle can be found on SourceForge:
http://hd-idle.sf.net
hd-idle is not public domain software. It's copyrighted by myself,
Christian Mueller, according to the terms of the GNU General Public
License (GPL). Please see the file LICENSE for additional information.
Copyright (c) Christian Mueller 2007
==============================================================================
Installation
------------
The compile process is rather simple, thus there's no automake or configure
script at this point, just a makefile for Linux. Since hd-idle is using the
Linux generic SCSI layer, it requires the include files scsi/sg.h and
scsi/scsi.h which should come with libc6-dev (at least on Debian they do).
Non-Debian Systems:
* In order to compile the program, type "make".
* In order to install the program into /usr/local/sbin, type "make install"
(this will also install the manpage into /usr/local/share/man/man1)
Debian Systems:
* Run "dpkg-buildpackage -rfakeroot"
* Run "dpkg -i ../hd-idle_*.deb" to install the package
NOTE: The build framework has been changed to be compatible to the Debian
package management with the intention of making hd-idle an official
Debian package. Once this effort has completed, hd-idle can be
installed with "apt-get install hd-idle". The changes to the Debian
build instructions as outlined above (previous releases used "make
install_debian") are a side effect of this effort.
Once completed, please check /etc/default/hd-idle for configuration
information. The default settings will *not* start hd-idle automatically.
Running hd-idle
---------------
In order to run hd-idle, type "hd-idle". This will start hd-idle with the
default options, causing all SCSI (read: USB, Firewire, SCSI, ...) hard disks
to spin down after 10 minutes of inactivity.
On a Debian system, after editing /etc/default/hd-idle and enabling it,
use "/etc/init.d/hd-idle start" to run hd-idle.
Please note that hd-idle uses /proc/diskstats to read disk statistics. If
this file is not present, hd-idle won't work.
In case of problems, use the debug option (-d) tp get further information.
Command line options:
-a <name> Set device name of disks for subsequent idle-time
parameters (-i). This parameter is optional in the
sense that there's a default entry for all disks
which are not named otherwise by using this
parameter. This can also be a symlink
(e.g. /dev/disk/by-uuid/...)
-i <idle_time> Idle time in seconds for the currently named disk(s)
(-a <name>) or for all disks.
-l <logfile> Name of logfile (written only after a disk has spun
up). Please note that this option might cause the
disk which holds the logfile to spin up just because
another disk had some activity. This option should
not be used on systems with more than one disk
except for tuning purposes. On single-disk systems,
this option should not cause any additional spinups.
Miscellaneous options:
-t <disk> Spin-down the specfified disk immediately and exit.
-d Debug mode. This will prevent hd-idle from
becoming a daemon and print debugging info to
stdout/stderr
-h Print usage information.
Regarding the parameter "-a":
Users of hd-idle have asked for means to set idle-time parameters for
individual disks. This makes a lot of sense, not only because some [SCSI]
disks may not react well to being stopped. Originally, hd-idle had one idle
time for all disks. The parameter "-a" can now be used to set a filter on
the disk's device name (omit /dev/) for subsequent idle-time settings.
1) A -i option before the first -a option will set the default idle time;
hence, compatibility with previous releases of hd-idle is maintained.
2) In order to disable spin-down of disks per default, and then re-enable
spin-down on selected disks, set the default idle time to 0.
Example:
hd-idle -i 0 -a sda -i 300 -a sdb -i 1200
This example sets the default idle time to 0 (meaning hd-idle will never
try to spin down a disk), then sets explicit idle times for disks which
have the string "sda" or "sdb" in their device name.
Stopping hd-idle
----------------
Use "killall hd-idle" to stop hd-idle. On a Debian system, use
"/etc/init.d/hd-idle stop".

3
cvsenv.sh Normal file
View File

@ -0,0 +1,3 @@
export CVS_RSH=ssh
export CVSROOT=cjmueller@hd-idle.cvs.sourceforge.net:/cvsroot/hd-idle

70
debian/changelog vendored Normal file
View File

@ -0,0 +1,70 @@
hd-idle (1.05) unstable; urgency=low
* Allow SCSI device names with more than one character (e.g. sdaa) in case
there are more than 26 SCSI targets.
-- Christian Mueller <cm1@mumac.de> Sun, 6 Apr 2014 22:02:00 +0200
hd-idle (1.04) unstable; urgency=low
* Make hd-idle's build environment compatible to Debian package management;
this effort is meant to allow hd-idle to become an official Debian package
* Man page for hd-idle
-- Christian Mueller <cm1@mumac.de> Fri, 30 Sep 2011 22:35:12 +0200
hd-idle (1.03) unstable; urgency=low
* Use %u in dprintf() when reporting number of reads and writes (the
corresponding variable is an unsigned int).
* Fix example in README where the parameter "-a" was written as "-n".
-- Christian Mueller <cm1@mumac.de> Sun, 5 Dec 2010 19:25:51 +0100
hd-idle (1.02) unstable; urgency=low
* In case the SCSI stop unit command fails with "check condition", print a
hex dump of the sense buffer to stderr. This is supposed to help
debugging.
-- Christian Mueller <cm1@mumac.de> Sat, 6 Nov 2010 15:47:00 +0100
hd-idle (1.01) unstable; urgency=low
* The parameter "-a" now also supports symlinks for disk names. Thus, disks
can be specified using something like /dev/disk/by-uuid/... Use "-d" to
verify that the resulting disk name is what you want.
Please note that disk names are resolved to device nodes at startup. Also,
since many entries in /dev/disk/by-xxx are actually partitions, partition
numbers are automatically removed from the resulting device node.
* Not really a bug, but the disk name comparison used strstr which is a bit
useless because only disks starting with "sd" and a single letter after
that are currently considered. Replaced the comparison with strcmp()
-- Christian Mueller <cm1@mumac.de> Fri, 26 Feb 2010 14:03:44 +0100
hd-idle (1.00) unstable; urgency=low
* New parameter "-a" to allow selecting idle timeouts for individual disks;
compatibility to previous releases is maintained by having an implicit
default which matches all SCSI disks
* Changed comparison operator for idle periods from '>' to '>=' to prevent
adding one polling interval to idle time
* Changed sleep time before calling sync after updating the log file to 1s
(from 3s) to accumulate fewer dirty blocks before synching. It's still
a compromize but the log file is for debugging purposes, anyway. A test
with fsync() was unsuccessful because the next bdflush-initiated sync
still caused spin-ups.
-- Christian Mueller <cm1@mumac.de> Wed, 18 Nov 2009 20:53:17 +0100
hd-idle (0.99) unstable; urgency=low
* Initial Release.
-- Christian Mueller <cm1@mumac.de> Mon, 23 Apr 2007 22:03:10 +0100

1
debian/compat vendored Normal file
View File

@ -0,0 +1 @@
7

34
debian/control vendored Normal file
View File

@ -0,0 +1,34 @@
Source: hd-idle
Section: utils
Priority: extra
Maintainer: Christian Mueller <cm1@mumac.de>
Build-Depends: debhelper (>= 7.0.50~), libc6-dev
Standards-Version: 3.8.4
Homepage: http://hd-idle.sf.net
#Vcs-Git: git://git.debian.org/collab-maint/hd-idle.git
#Vcs-Browser: http://git.debian.org/?p=collab-maint/hd-idle.git;a=summary
Package: hd-idle
Architecture: any
Depends: ${shlibs:Depends}, ${misc:Depends}
Description: Spin down idle [USB] hard disks
hd-idle is a utility program for spinning-down external disks after a period
of idle time. Since most external IDE disk enclosures don't support setting
the IDE idle timer, a program like hd-idle is required to spin down idle disks
automatically.
.
A word of caution: hard disks don't like spinning up too often. Laptop disks
are more robust in this respect than desktop disks but if you set your disks
to spin down after a few seconds you may damage the disk over time due to the
stress the spin-up causes on the spindle motor and bearings. It seems that
manufacturers recommend a minimum idle time of 3-5 minutes, the default in
hd-idle is 10 minutes.
.
One more word of caution: hd-idle will spin down any disk accessible via the
SCSI layer (USB, IEEE1394, ...) but it will not work with real SCSI disks
because they don't spin up automatically. Thus it's not called scsi-idle and
I don't recommend using it on a real SCSI system unless you have a kernel
patch that automatically starts the SCSI disks after receiving a sense buffer
indicating the disk has been stopped. Without such a patch, real SCSI disks
won't start again and you can as well pull the plug.

34
debian/copyright vendored Normal file
View File

@ -0,0 +1,34 @@
This work was written and packaged by Christian Mueller <cm1@mumac.de>
It was downloaded from: <http://hd-idle.sf.net>
Upstream Author(s): Christian Mueller <cm1@mumac.de>
Copyright:
<Copyright (C) 2007 Christian Mueller>
License:
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This package is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
On Debian systems, the complete text of the GNU General
Public License version 3 can be found in "/usr/share/common-licenses/GPL-3".
The Debian packaging is:
Copyright (C) 2011 Christian Mueller <cm1@mumac.de>
and is licensed under the GPL version 3, see above.

1
debian/docs vendored Normal file
View File

@ -0,0 +1 @@
README

30
debian/hd-idle.default vendored Normal file
View File

@ -0,0 +1,30 @@
# defaults file for hd-idle
# start hd-idle automatically?
START_HD_IDLE=false
# hd-idle command line options
# Options are:
# -a <name> Set device name of disks for subsequent idle-time
# parameters (-i). This parameter is optional in the
# sense that there's a default entry for all disks
# which are not named otherwise by using this
# parameter. This can also be a symlink
# (e.g. /dev/disk/by-uuid/...)
# -i <idle_time> Idle time in seconds.
# -l <logfile> Name of logfile (written only after a disk has spun
# up). Please note that this option might cause the
# disk which holds the logfile to spin up just because
# another disk had some activity. This option should
# not be used on systems with more than one disk
# except for tuning purposes. On single-disk systems,
# this option should not cause any additional spinups.
#
# Options not exactly useful here:
# -t <disk> Spin-down the specfified disk immediately and exit.
# -d Debug mode. This will prevent hd-idle from
# becoming a daemon and print debugging info to
# stdout/stderr
# -h Print usage information.
#HD_IDLE_OPTS="-i 180 -l /var/log/hd-idle.log"

53
debian/hd-idle.init vendored Executable file
View File

@ -0,0 +1,53 @@
#!/bin/sh
### BEGIN INIT INFO
# Provides: hd-idle
# Required-Start: $local_fs
# Required-Stop: $local_fs
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: start hd-idle daemon (spin down idle hard disks)
### END INIT INFO
PATH=/sbin:/bin:/usr/sbin:/usr/bin
DAEMON=/usr/sbin/hd-idle
HD_IDLE_OPTS="-i 600"
START_HD_IDLE=false
[ -r /etc/default/hd-idle ] && . /etc/default/hd-idle
if [ "$START_HD_IDLE" != "true" ] ; then
exit 0
fi
# See if the daemon is there
test -x $DAEMON || exit 0
. /lib/lsb/init-functions
case "$1" in
start)
log_daemon_msg "Starting the hd-idle daemon" "hd-idle"
start-stop-daemon --start --quiet --oknodo --exec $DAEMON -- $HD_IDLE_OPTS
log_end_msg $?
;;
stop)
log_daemon_msg "Stopping the hd-idle daemon" "hd-idle"
start-stop-daemon --stop --quiet --oknodo --exec $DAEMON
log_end_msg $?
;;
restart|force-reload)
$0 stop && sleep 2 && $0 start
;;
*)
echo "Usage: /etc/init.d/hd-idle start/stop/restart/force-reload"
exit 1
;;
esac

13
debian/rules vendored Executable file
View File

@ -0,0 +1,13 @@
#!/usr/bin/make -f
# -*- makefile -*-
# Sample debian/rules that uses debhelper.
# This file was originally written by Joey Hess and Craig Small.
# As a special exception, when this file is copied by dh-make into a
# dh-make output file, you may use that output file without restriction.
# This special exception was added by Craig Small in version 0.37 of dh-make.
# Uncomment this to turn on verbose mode.
# export DH_VERBOSE=1
%:
dh $@

1
debian/source/format vendored Normal file
View File

@ -0,0 +1 @@
3.0 (native)

101
hd-idle.1 Normal file
View File

@ -0,0 +1,101 @@
.\" Hey, EMACS: -*- nroff -*-
.\" First parameter, NAME, should be all caps
.\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
.\" other parameters are allowed: see man(7), man(1)
.TH HD-IDLE 1 "September 29, 2011"
.\" Please adjust this date whenever revising the manpage.
.\"
.\" Some roff macros, for reference:
.\" .nh disable hyphenation
.\" .hy enable hyphenation
.\" .ad l left justify
.\" .ad b justify to both left and right margins
.\" .nf disable filling
.\" .fi enable filling
.\" .br insert line break
.\" .sp <n> insert n+1 empty lines
.\" for manpage-specific macros, see man(7)
.SH NAME
hd-idle \- spin down idle hard disks
.SH SYNOPSIS
.B hd-idle
.RI [ options ]
.P
.SH DESCRIPTION
hd-idle is a utility program for spinning down external disks after a period
of idle time. Since most external IDE disk enclosures don't support setting
the IDE idle timer, a program like hd-idle is required to spin down idle
disks automatically.
.P
A word of caution: hard disks don't like spinning up too often. Laptop disks
are more robust in this respect than desktop disks but if you set your disks
to spin down after a few seconds you may damage the disk over time due to the
stress the spin-up causes on the spindle motor and bearings. It seems that
manufacturers recommend a minimum idle time of 3-5 minutes, the default in
hd-idle is 10 minutes.
.P
One more word of caution: hd-idle will spin down any disk accessible via the
SCSI layer (USB, IEEE1394, ...) but it will NOT work with real SCSI disks
because they won't spin up automatically. Thus it's not called scsi-idle and
I don't recommend using it on a real SCSI system unless you have a kernel
patch that automatically starts the SCSI disks after receiving a sense buffer
indicating the disk has been stopped. Without such a patch, real SCSI disks
won't start again and you can as well pull the plug.
.SH OPTIONS
.TP
.B \-a name
Set device name of disks for subsequent idle-time parameters
.B (-i).
This parameter is optional in the sense that there's a default entry for
all disks which are not named otherwise by using this parameter. This can
also be a symlink (e.g. /dev/disk/by-uuid/...)
.TP
.B \-i idle_time
Idle time in seconds for the currently named disk(s) (-a <name>) or for
all disks.
.TP
.B \-l logfile
Name of logfile (written only after a disk has spun up). Please note that
this option might cause the disk which holds the logfile to spin up just
because another disk had some activity. This option should not be used on
systems with more than one disk except for tuning purposes. On single-disk
systems, this option should not cause any additional spinups.
.TP
.B \-t disk
Spin-down the specfified disk immediately and exit.
.TP
.B \-d
Debug mode. This will prevent hd-idle from becoming a daemon and print
debugging info to stdout/stderr
.TP
.B \-h
Print usage information.
.SH "DISK SELECTION"
The parameter
.B \-a
can be used to set a filter on the disk's device name (omit /dev/) for
subsequent idle-time settings. The default is all disks:
.P
.TP
.B \1)
A
.B \-i
option before the first
.B \-a
option will set the default idle time; hence, compatibility with previous
releases of hd-idle is maintained.
.TP
.B \2)
In order to disable spin-down of disks per default, and then re-enable
spin-down on selected disks, set the default idle time to 0.
.SH EXAMPLE
hd-idle -i 0 -a sda -i 300 -a sdb -i 1200
.P
This example sets the default idle time to 0 (meaning hd-idle will never
try to spin down a disk), then sets explicit idle times for disks which
have the string "sda" or "sdb" in their device name.
.SH AUTHOR
hd-idle was written by Chistian Mueller <chris@mumac.de>
.PP
This manual page was written by Christian Mueller <chris@mumac.de>,
for the Debian project (and may be used by others).

575
hd-idle.c Normal file
View File

@ -0,0 +1,575 @@
/*
* hd-idle.c - external disk idle daemon
*
* Copyright (c) 2007 Christian Mueller.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* hd-idle is a utility program for spinning-down external disks after a period
* of idle time. Since most external IDE disk enclosures don't support setting
* the IDE idle timer, a program like hd-idle is required to spin down idle
* disks automatically.
*
* A word of caution: hard disks don't like spinning-up too often. Laptop disks
* are more robust in this respect than desktop disks but if you set your disks
* to spin down after a few seconds you may damage the disk over time due to the
* stress the spin-up causes on the spindle motor and bearings. It seems that
* manufacturers recommend a minimum idle time of 3-5 minutes, the default in
* hd-idle is 10 minutes.
*
* Please note that hd-idle can spin down any disk accessible via the SCSI
* layer (USB, IEEE1394, ...) but it will NOT work with real SCSI disks because
* they don't spin up automatically. Thus it's not called scsi-idle and I don't
* recommend using it on a real SCSI system unless you have a kernel patch that
* automatically starts the SCSI disks after receiving a sense buffer indicating
* the disk has been stopped. Without such a patch, real SCSI disks won't start
* again and you can as well pull the plug.
*
* You have been warned...
*
* CVS Change Log:
* ---------------
*
* $Log: hd-idle.c,v $
* Revision 1.7 2014/04/06 19:53:51 cjmueller
* Version 1.05
* ------------
*
* Bugs:
* - Allow SCSI device names with more than one character (e.g. sdaa) in case
* there are more than 26 SCSI targets.
*
* Revision 1.6 2010/12/05 19:25:51 cjmueller
* Version 1.03
* ------------
*
* Bugs
* - Use %u in dprintf() when reporting number of reads and writes (the
* corresponding variable is an unsigned int).
* - Fix example in README where the parameter "-a" was written as "-n".
*
* Revision 1.5 2010/11/06 15:30:04 cjmueller
* Version 1.02
* ------------
*
* Features
* - In case the SCSI stop unit command fails with "check condition", print a
* hex dump of the sense buffer to stderr. This is supposed to help
* debugging.
*
* Revision 1.4 2010/02/26 14:03:44 cjmueller
* Version 1.01
* ------------
*
* Features
* - The parameter "-a" now also supports symlinks for disk names. Thus, disks
* can be specified using something like /dev/disk/by-uuid/... Use "-d" to
* verify that the resulting disk name is what you want.
*
* Please note that disk names are resolved to device nodes at startup. Also,
* since many entries in /dev/disk/by-xxx are actually partitions, partition
* numbers are automatically removed from the resulting device node.
*
* Bugs
* - Not really a bug, but the disk name comparison used strstr which is a bit
* useless because only disks starting with "sd" and a single letter after
* that are currently considered. Replaced the comparison with strcmp()
*
* Revision 1.3 2009/11/18 20:53:17 cjmueller
* Features
* - New parameter "-a" to allow selecting idle timeouts for individual disks;
* compatibility to previous releases is maintained by having an implicit
* default which matches all SCSI disks
*
* Bugs
* - Changed comparison operator for idle periods from '>' to '>=' to prevent
* adding one polling interval to idle time
* - Changed sleep time before calling sync after updating the log file to 1s
* (from 3s) to accumulate fewer dirty blocks before synching. It's still
* a compromize but the log file is for debugging purposes, anyway. A test
* with fsync() was unsuccessful because the next bdflush-initiated sync
* still caused spin-ups.
*
* Revision 1.2 2007/04/23 22:14:27 cjmueller
* Bug fixes
* - Comment changes; no functionality changes...
*
* Revision 1.1.1.1 2007/04/23 21:49:43 cjmueller
* initial import into CVS
*
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <ctype.h>
#include <errno.h>
#include <unistd.h>
#include <stdarg.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <scsi/sg.h>
#include <scsi/scsi.h>
#define STAT_FILE "/proc/diskstats"
#define DEFAULT_IDLE_TIME 600
#define dprintf if (debug) printf
/* typedefs and structures */
typedef struct IDLE_TIME {
struct IDLE_TIME *next;
char *name;
int idle_time;
} IDLE_TIME;
typedef struct DISKSTATS {
struct DISKSTATS *next;
char name[50];
int idle_time;
time_t last_io;
time_t spindown;
time_t spinup;
unsigned int spun_down : 1;
unsigned int reads;
unsigned int writes;
} DISKSTATS;
/* function prototypes */
static void daemonize (void);
static DISKSTATS *get_diskstats (const char *name);
static void spindown_disk (const char *name);
static void log_spinup (DISKSTATS *ds);
static char *disk_name (char *name);
static void phex (const void *p, int len,
const char *fmt, ...);
/* global/static variables */
IDLE_TIME *it_root;
DISKSTATS *ds_root;
char *logfile = "/dev/null";
int debug;
/* main function */
int main(int argc, char *argv[])
{
IDLE_TIME *it;
int have_logfile = 0;
int min_idle_time;
int sleep_time;
int opt;
/* create default idle-time parameter entry */
if ((it = malloc(sizeof(*it))) == NULL) {
fprintf(stderr, "out of memory\n");
exit(1);
}
it->next = NULL;
it->name = NULL;
it->idle_time = DEFAULT_IDLE_TIME;
it_root = it;
/* process command line options */
while ((opt = getopt(argc, argv, "t:a:i:l:dh")) != -1) {
switch (opt) {
case 't':
/* just spin-down the specified disk and exit */
spindown_disk(optarg);
return(0);
case 'a':
/* add a new set of idle-time parameters for this particular disk */
if ((it = malloc(sizeof(*it))) == NULL) {
fprintf(stderr, "out of memory\n");
return(2);
}
it->name = disk_name(optarg);
it->idle_time = DEFAULT_IDLE_TIME;
it->next = it_root;
it_root = it;
break;
case 'i':
/* set idle-time parameters for current (or default) disk */
it->idle_time = atoi(optarg);
break;
case 'l':
logfile = optarg;
have_logfile = 1;
break;
case 'd':
debug = 1;
break;
case 'h':
printf("usage: hd-idle [-t <disk>] [-a <name>] [-i <idle_time>] [-l <logfile>] [-d] [-h]\n");
return(0);
case ':':
fprintf(stderr, "error: option -%c requires an argument\n", optopt);
return(1);
case '?':
fprintf(stderr, "error: unknown option -%c\n", optopt);
return(1);
}
}
/* set sleep time to 1/10th of the shortest idle time */
min_idle_time = 1 << 30;
for (it = it_root; it != NULL; it = it->next) {
if (it->idle_time != 0 && it->idle_time < min_idle_time) {
min_idle_time = it->idle_time;
}
}
if ((sleep_time = min_idle_time / 10) == 0) {
sleep_time = 1;
}
/* daemonize unless we're running in debug mode */
if (!debug) {
daemonize();
}
/* main loop: probe for idle disks and stop them */
for (;;) {
DISKSTATS tmp;
FILE *fp;
char buf[200];
if ((fp = fopen(STAT_FILE, "r")) == NULL) {
perror(STAT_FILE);
return(2);
}
memset(&tmp, 0x00, sizeof(tmp));
while (fgets(buf, sizeof(buf), fp) != NULL) {
if (sscanf(buf, "%*d %*d %s %*u %*u %u %*u %*u %*u %u %*u %*u %*u %*u",
tmp.name, &tmp.reads, &tmp.writes) == 3) {
DISKSTATS *ds;
time_t now = time(NULL);
const char *s;
/* make sure this is a SCSI disk (sd[a-z]+) without partition number */
if (tmp.name[0] != 's' || tmp.name[1] != 'd') {
continue;
}
for (s = tmp.name + 2; isalpha(*s); s++);
if (*s != '\0') {
/* ignore disk partitions */
continue;
}
dprintf("probing %s: reads: %u, writes: %u\n", tmp.name, tmp.reads, tmp.writes);
/* get previous statistics for this disk */
ds = get_diskstats(tmp.name);
if (ds == NULL) {
/* new disk; just add it to the linked list */
if ((ds = malloc(sizeof(*ds))) == NULL) {
fprintf(stderr, "out of memory\n");
return(2);
}
memcpy(ds, &tmp, sizeof(*ds));
ds->last_io = now;
ds->spinup = ds->last_io;
ds->next = ds_root;
ds_root = ds;
/* find idle time for this disk (falling-back to default; default means
* 'it->name == NULL' and this entry will always be the last due to the
* way this single-linked list is built when parsing command line
* arguments)
*/
for (it = it_root; it != NULL; it = it->next) {
if (it->name == NULL || !strcmp(ds->name, it->name)) {
ds->idle_time = it->idle_time;
break;
}
}
} else if (ds->reads == tmp.reads && ds->writes == tmp.writes) {
if (!ds->spun_down) {
/* no activity on this disk and still running */
if (ds->idle_time != 0 && now - ds->last_io >= ds->idle_time) {
spindown_disk(ds->name);
ds->spindown = now;
ds->spun_down = 1;
}
}
} else {
/* disk had some activity */
if (ds->spun_down) {
/* disk was spun down, thus it has just spun up */
if (have_logfile) {
log_spinup(ds);
}
ds->spinup = now;
}
ds->reads = tmp.reads;
ds->writes = tmp.writes;
ds->last_io = now;
ds->spun_down = 0;
}
}
}
fclose(fp);
sleep(sleep_time);
}
return(0);
}
/* become a daemon */
static void daemonize(void)
{
int maxfd;
int i;
/* fork #1: exit parent process and continue in the background */
if ((i = fork()) < 0) {
perror("couldn't fork");
exit(2);
} else if (i > 0) {
_exit(0);
}
/* fork #2: detach from terminal and fork again so we can never regain
* access to the terminal */
setsid();
if ((i = fork()) < 0) {
perror("couldn't fork #2");
exit(2);
} else if (i > 0) {
_exit(0);
}
/* change to root directory and close file descriptors */
chdir("/");
maxfd = getdtablesize();
for (i = 0; i < maxfd; i++) {
close(i);
}
/* use /dev/null for stdin, stdout and stderr */
open("/dev/null", O_RDONLY);
open("/dev/null", O_WRONLY);
open("/dev/null", O_WRONLY);
}
/* get DISKSTATS entry by name of disk */
static DISKSTATS *get_diskstats(const char *name)
{
DISKSTATS *ds;
for (ds = ds_root; ds != NULL; ds = ds->next) {
if (!strcmp(ds->name, name)) {
return(ds);
}
}
return(NULL);
}
/* spin-down a disk */
static void spindown_disk(const char *name)
{
struct sg_io_hdr io_hdr;
unsigned char sense_buf[255];
char dev_name[100];
int fd;
dprintf("spindown: %s\n", name);
/* fabricate SCSI IO request */
memset(&io_hdr, 0x00, sizeof(io_hdr));
io_hdr.interface_id = 'S';
io_hdr.dxfer_direction = SG_DXFER_NONE;
/* SCSI stop unit command */
io_hdr.cmdp = (unsigned char *) "\x1b\x00\x00\x00\x00\x00";
io_hdr.cmd_len = 6;
io_hdr.sbp = sense_buf;
io_hdr.mx_sb_len = (unsigned char) sizeof(sense_buf);
/* open disk device (kernel 2.4 will probably need "sg" names here) */
snprintf(dev_name, sizeof(dev_name), "/dev/%s", name);
if ((fd = open(dev_name, O_RDONLY)) < 0) {
perror(dev_name);
return;
}
/* execute SCSI request */
if (ioctl(fd, SG_IO, &io_hdr) < 0) {
char buf[100];
snprintf(buf, sizeof(buf), "ioctl on %s:", name);
perror(buf);
} else if (io_hdr.masked_status != 0) {
fprintf(stderr, "error: SCSI command failed with status 0x%02x\n",
io_hdr.masked_status);
if (io_hdr.masked_status == CHECK_CONDITION) {
phex(sense_buf, io_hdr.sb_len_wr, "sense buffer:\n");
}
}
close(fd);
}
/* write a spin-up event message to the log file */
static void log_spinup(DISKSTATS *ds)
{
FILE *fp;
if ((fp = fopen(logfile, "a")) != NULL) {
/* Print statistics to logfile
*
* Note: This doesn't work too well if there are multiple disks
* because the I/O we're dealing with might be on another
* disk so we effectively wake up the disk the log file is
* stored on as well. Then again the logfile is a debugging
* option, so what...
*/
time_t now = time(NULL);
char tstr[20];
char dstr[20];
strftime(dstr, sizeof(dstr), "%Y-%m-%d", localtime(&now));
strftime(tstr, sizeof(tstr), "%H:%M:%S", localtime(&now));
fprintf(fp,
"date: %s, time: %s, disk: %s, running: %ld, stopped: %ld\n",
dstr, tstr, ds->name,
(long) ds->spindown - (long) ds->spinup,
(long) time(NULL) - (long) ds->spindown);
/* Sync to make sure writing to the logfile won't cause another
* spinup in 30 seconds (or whatever bdflush uses as flush interval).
*/
fclose(fp);
sleep(1);
sync();
}
}
/* Resolve disk names specified as "/dev/disk/by-xxx" or some other symlink.
* Please note that this function is only called during command line parsing
* and hd-idle per se does not support dynamic disk additions or removals at
* runtime.
*
* This might change in the future but would require some fiddling to avoid
* needless overhead -- after all, this was designed to run on tiny embedded
* devices, too.
*/
static char *disk_name(char *path)
{
ssize_t len;
char buf[256];
char *s;
if (*path != '/') {
/* just a disk name without /dev prefix */
return(path);
}
if ((len = readlink(path, buf, sizeof(buf) - 1)) <= 0) {
if (errno != EINVAL) {
/* couldn't resolve disk name */
return(path);
}
/* 'path' is not a symlink */
strncpy(buf, path, sizeof(buf) - 1);
buf[sizeof(buf)-1] = '\0';
len = strlen(buf);
}
buf[len] = '\0';
/* remove partition numbers, if any */
for (s = buf + strlen(buf) - 1; s >= buf && isdigit(*s); s--) {
*s = '\0';
}
/* Extract basename of the disk in /dev. Note that this assumes that the
* final target of the symlink (if any) resolves to /dev/sd*
*/
if ((s = strrchr(buf, '/')) != NULL) {
s++;
} else {
s = buf;
}
if ((s = strdup(s)) == NULL) {
fprintf(stderr, "out of memory");
exit(2);
}
if (debug) {
printf("using %s for %s\n", s, path);
}
return(s);
}
/* print hex dump to stderr (e.g. sense buffers) */
static void phex(const void *p, int len, const char *fmt, ...)
{
va_list va;
const unsigned char *buf = p;
int pos = 0;
int i;
/* print header */
va_start(va, fmt);
vfprintf(stderr, fmt, va);
/* print hex block */
while (len > 0) {
fprintf(stderr, "%08x ", pos);
/* print hex block */
for (i = 0; i < 16; i++) {
if (i < len) {
fprintf(stderr, "%c%02x", ((i == 8) ? '-' : ' '), buf[i]);
} else {
fprintf(stderr, " ");
}
}
/* print ASCII block */
fprintf(stderr, " ");
for (i = 0; i < ((len > 16) ? 16 : len); i++) {
fprintf(stderr, "%c", (buf[i] >= 32 && buf[i] < 128) ? buf[i] : '.');
}
fprintf(stderr, "\n");
pos += 16;
buf += 16;
len -= 16;
}
}