README.TXT: Adaptec maxView Storage Manager &
ARCCONF Command Line Interface Utility
as of March 22, 2016
--------------------------------------------------------------------
Please check the product website for the later versions of this
file to ensure you are reviewing the latest information. This
file contains important information about issues and errata
that were discovered after completion of the standard
product documentation.
In the case of conflict between various parts of the documentation
set, this file contains the most current information.
Table of Contents
1. New Features of this Release
2. Software Versions and Documentation
2.1. Utility Software
2.2. Documentation
4.2.2.1. Series 6, 7, 8 Controller Documentation
4.2.2.2. HBA 1000 Series Product Documentation
4.2.2.3. SmartIOC Product Documentation
3. Installation Notes
3.1. Installation and Setup
3.2. Supported Operating Systems
3.2.1. Series 6, 7, 8 Controllers
3.2.2. Smart Family Controllers
3.3. General Setup Notes
3.4. Remote Access
3.5. Windows 8 Setup
3.6. SLES Setup
3.7. Ubuntu Setup
3.8. Bootable USB Image Security Warnings
3.9. RAW Device Setup (Series 6, 7, 8 Only)
3.10. maxView Plugin for VMware vSphere Web Client
4. Known Limitations
4.1. Global Limitations
4.1.1. Dual-Controller Systems
4.1.2. Email Notifications
4.1.3. SGPIO Enclosures
4.1.4. Non-RAID Mode Controllers
4.1.5. Browser Issues
4.1.6. Remote System Access on Linux and Windows
4.1.7. RAID 10 Segment Order
4.1.8. RAID 10 Rebuild Order
4.1.9. Locate Logical Drive Blink LED
4.1.10. ARCCONF Backward Compatibility
4.1.11. Updating Hard Disk Firmware on VMware Guest OS
4.1.12. Hot Swap Issues on VMware CentOS Guest OS
4.1.13. Enclosure Status Reporting
4.1.14. PHY Status on Enclosure Backplanes
4.1.15. Special Characters in Logical Device Names
4.1.16. Speaker Status on SuperMicro SAS2X28 Enclosures
4.1.17. Online Help Issues
4.1.18. Broadcasting Alerts About Status and Activity
4.2. Limitations Specific to Series 6, 7, 8 Controllers
4.2.1. RAID-Level Migrations
4.2.2. maxCache Device Migration
4.2.3. ARCCONF maxCache Device Size Issue
4.2.4. Power Management Issues
4.2.5. Verify with Fix
4.2.6. ATA Secure Erase
4.2.7. Series 6 Controller Issues
4.2.8. Simple Volume Support
4.2.9. Auto-Volume Support
4.2.10. Hot-Removing Disk Drives on Xenserver Guest OS
4.2.11. Changing Read and Write Cache Settings for Logical Drive
4.3. Limitations Specific to Smart Family Controllers
4.3.1. SES Passthrough Commands to Expanders
4.3.2. Firmware Upgrade Issues
1. New Features of this Release
o Added new features:
- New command to identify a device by blinking its LEDs.
- Segment and Group Information of a RAID 10 Logical
Device can now be displayed.
- A new UNINIT/TASK command to clear drive configuration
for physical devices containing RAID Information Sector
(RIS) that have been masked in order to protect the
configuration data.
- Ability to show SGPIO virtual SEP information to show
enclosure devices for SGPIO backplanes.
- For cases where a logical drive fails, the array status
is now reported.
- Ability to display physical drive mount point information.
- Ability to display logical drive mount point information.
- Verify Write support is provided.
- Linux Hyper-V is supported for the maxView Storage Manager.
o For Smart family products, added support for Citrix XenServer.
o Bugfixes
2. Software Versions and Documentation
2.1. Utility Software
o Microsemi Adaptec maxView Storage Manager
Version 2.01.00 (22268)
o Microsemi Adaptec ARCCONF Command Line Interface
Utility Version 2.01.00 (22268)
2.2. Documentation
2.2.1. Series 6, 7, 8 Controller Documentation
PDF Format (English/Japanese)
o maxView Storage Manager User's Guide
o Adaptec RAID Controller Command Line Utility
User's Guide
HTML and Text Format
o maxView Storage Manager Online Help
o maxView Storage Manager README.TXT file
2.2.2. HBA 1000 Series Product Documentation
PDF:
o Adaptec maxView Storage Manager User's Guide for
Smart-Family Controllers
o Adaptec HBA 1000 Series Command Line Utility
User's Guide
HTML and Text Format:
o maxView Storage Manager for Smart-Family Controllers
Online Help
o maxView Storage Manager README.TXT file
2.2.3. SmartIOC Product Documentation
PDF:
o Adaptec maxView Storage Manager User's Guide for
Smart-Family Controllers
o Adaptec SmartIOC 2000 Command Line Utility User's
Guide
HTML and Text Format:
o maxView Storage Manager for Smart-Family Controllers
Online Help
o maxView Storage Manager README.TXT file
3. Installation Notes
3.1. Installation and Setup
Refer to your product documentation for the correct
installation and setup details:
o Your product Installation and User's Guide contains
complete installation information for your product's
drivers.
o The maxView Storage Manager User's Guide for your
product contains installation information for the
maxView Storage Manager software.
o The Command Line Utility User's Guide for your product
contains complete installation for ARCCONF.
3.2. Supported Operating Systems
3.2.1. Series 6, 7, 8 Controllers
Microsoft Windows
o Microsoft Windows Server 2012 (64-bit)
o Microsoft Windows Server 2012 R2 (64-bit)
o Microsoft Windows Server 2008 R2 SP1 (64-bit)
o Microsoft Windows SBS 2011 (Standard and Essential)
o Microsoft Windows 10 (32-bit and 64-bit)
o Microsoft Windows 8.1 (32-bit and 64-bit)
o Microsoft Windows 7 (32-bit and 64-bit)
o Microsoft WinPE 8.1 (32-bit and 64-bit)
Linux
o Red Hat Enterprise Linux/CentOS 7.2, 7.1 (64-bit)
o Red Hat Enterprise Linux/CentOS 6.7, 6.6 (64-bit)
o Red Hat Enterprise Linux/CentOS 5.11, 5.10 (64-bit)
o SuSE Linux Enterprise Server 12 SP1 (64-bit)
o SuSE Linux Enterprise Server 12 (64-bit)
o SuSE Linux Enterprise Server 11 SP4 and SP3 (64-bit)
o Debian Linux 8.1 (64-bit)
o Ubuntu Linux 14.04.3, 14.04 (64-bit)
o Ubuntu Linux 12.04.5 (64-bit)
o Fedora Linux 22 (64-bit)
FreeBSD
o FreeBSD 10.2 (64-bit)
o FreeBSD 9.3 (64-bit)
Virtual OS Environments
o VMware ESXi 6.0 (64-bit)
o VMware ESXi 5.5 U2 (64-bit)
o Citrix XenServer 6.5.1 (64-bit)
o Citrix XenServer 6.2 (32-bit)
Solaris
o Solaris 11 (32-bit)
o Solaris 10 U9 (32-bit)
Notes
1. The ARCCONF Command Line Utility is supported on
only 64-bit versions of Microsoft Windows and Linux.
2. Boot USB (offline or pre-boot) for the ARCCONF Command
Line Utility and maxView Storage Manager is supported
in Linux.
3.2.2. Smart Family Controllers
Microsoft Windows
o Microsoft Windows Server 2012 (64-bit)
o Microsoft Windows Server 2012 R2 (64-bit)
o Microsoft Windows Server 2008 R2 SP1 (64-bit)
o Microsoft Windows SBS 2011 (Standard and Essential)
o Microsoft Windows 10 (32-bit and 64-bit)
o Microsoft Windows 8.1 (32-bit and 64-bit)
o Microsoft Windows 7 (32-bit and 64-bit)
Linux
o Red Hat Enterprise Linux/CentOS 7.2, 7.1 (64-bit)
o Red Hat Enterprise Linux/CentOS 6.7, 6.6 (64-bit)
o Red Hat Enterprise Linux/CentOS 5.11, 5.10 (64-bit)
o SuSE Linux Enterprise Server 12 SP1 (64-bit)
o SuSE Linux Enterprise Server 12 (64-bit)
o SuSE Linux Enterprise Server 11 SP4 and SP3 (64-bit)
o Ubuntu Linux 14.04.3, 14.04 (64-bit)
o Ubuntu Linux 12.04.5 (64-bit)
Virtual OS Environments
o VMware ESXi 6.0, ESXi U1 (64-bit)
o VMware ESXi 5.5 U2, ESXi 5.5 U3 (64-bit)
o Citrix XenServer 6.5.1 (64-bit)
o Citrix XenServer 6.2 (32-bit)
Notes
1. The ARCCONF Command Line Utility is supported on
only 64-bit versions of Microsoft Windows and Linux.
2. Boot USB (offline or pre-boot) for the ARCCONF Command
Line Utility and maxView Storage Manager is supported
in Linux.
3.3. General Setup Notes
o maxView Storage Manager is not backwards-compatible with
Series 5 and older Adaptec controller models.
o maxView Storage Manager and legacy Adaptec Storage Manager
(ASM) cannot coexist on the same system.
o For Series 6, 7, 8 controllers:
- maxView Storage Manager is not supported on FreeBSD.
Use ARCCONF to create and manage arrays.
3.4. Remote Access
maxView Storage Manager requires the following range of
ports to be open for remote access:
o 34570-34580 (TCP)
o 34570 (UDP)
o 34577-34580 (UDP)
See also 4.1.6 for OS-specific issues and workarounds.
3.5. Windows 8 Setup
To log in and use maxView Storage Manager on a Windows 8
system, you must create a local user account; you cannot
use your MS Live account.
To create a local user account:
1. Log into your MS Live account.
2. Select Settings->Change PC Settings->Users->Switch to
Local user.
3. Provide account details.
4. Start maxView Storage Manager and log in with your
local user account credentials.
3.6. SLES Setup
o To avoid a problem with launching maxView Storage
Manager on SLES 11 x64 systems with DHCP enabled,
ensure that the /etc/hosts file maps the server
IP address to a valid host name; it is not sufficient
to map the IP address to 'localhost'.
3.7. Ubuntu Setup
o To avoid a maxView Login failure on Ubuntu systems,
you must ensure that the root user account is enabled.
(It is disabled, by default, on Ubuntu 14.04
and later because no password is set.)
For example: sudo bash; sudo passwd root
o When upgrading maxView Storage Manager on an existing
Ubuntu Linux x64 installation, you must enable the
upgrade switch before installing the maxView .deb
package:
export maxView_Upgrade=true
dpkg -i StorMan-*.deb
To uninstall maxView after the upgrade:
export maxView_Upgrade=false
dpkg -r storman
3.8. Bootable USB Image Security Warnings
When running maxView Storage Manager from the bootable
USB image, you may be prompted with one or more with
security warnings before maxView launches. In
each case, acknowledge the warning and continue.
3.9. RAW Device Setup (Series 6, 7, 8 Only)
On Adaptec Series 7 and Adaptec Series 8 controllers,
a RAW Pass Through device is analogous to a JBOD, supported
by Adaptec Series 6 controllers and older. Any drive without
Adaptec RAID metadata is exposed to the OS as a RAW Pass
Through device. To remove the Adaptec metadata and convert
the drive to a RAW device, use the Uninitialize command in
maxView Storage Manager; any existing data on the drive is
destroyed. (You can also run uninit from the BIOS or
ARCCONF.) For more information about working with RAW devices,
see 'controller modes' in the CLI User's Guide, and BIOS
'general settings' in the RAID Controller Installation and
User's Guide.
3.10. maxView Plugin for VMware vSphere Web Client
The maxView Plugin for VMware vSphere Web Client is
supported on VMware 5.5 and 6.0.
4. Known Limitations
4.1. Global Limitations
4.1.1. Dual-Controller Systems
In dual-controller systems, the controller order in
maxView Storage Manager and the BIOS differs. Example:
with an Adaptec 72405 and 7805 installed, the BIOS reports
the 72405 as controller 1 and the 7805 as controller 2;
in the GUI, the controller order is reversed.
4.1.2. Email Notifications
o On Linux systems, we recommend adding the SMTP host
name and the system IP address, to the /etc/hosts file.
Doing so ensures that email notifications will succeed
if you specify the email server in maxView Storage
Manager by host name. Otherwise, email notifications
(including test messages) may fail if the DNS is unable
to resolve the host name.
WORKAROUND: Specify the email server in maxView Storage
Manager by IP address.
o On CentOS 5.9 x64, email notifications may not be sent
for logical drive creations, degraded logical drives,
or logical drives that are rebuilding or fully rebuilt.
4.1.3. SGPIO Enclosures
In this release, maxView Storage Manager does not show
connector information for SGPIO enclosures.
4.1.4. Non-RAID Mode Controllers
maxView Storage Manager can "see" RAID controllers
operating in HBA mode, Auto-Volume mode, and Simple Volume
mode (Adaptec Series 7, Adaptec Series 8, Smart Family
controllers only). However, to change the controller mode
on Adaptec Series 7/8 controllers, you must use ARCCONF
or the BIOS. With Adaptec Smart-Family controllers, you
can also change the controller mode with maxView Storage
Manager.
4.1.5. Browser Issues
To run maxView Storage Manager on the supported browsers.
Javascript must be enabled.
o Due to a certificate bug in Firefox 31.x, maxView
login may fail on RHEL systems with a "Secure
Connection" error. (Firefox 31.1 is the default
browser on RHEL 6.6; on RHEL 7.1, it is 31.4.)
WORKAROUND: Upgrade to Firefox 36.
o With the default Security setting in Microsoft
Internet Explorer 10 and 11, you may be unable to
login to maxView Storage Manager or experience
certain GUI display issues in the maxView online
Help system.
WORKAROUND: Change the default Security setting
from High (or Medium-High) to Medium.
Alternative: add the GUI IP address to the trusted
sites list.
o With Google Chrome, the scrollbar resets itself to
the top after selecting a drive in the Logical Drive
wizard. To select another drive, you must
scroll back down to the drive location.
o With Microsoft Internet Explorer 10, the controller
firmware update wizard does not show the f/w update
file name when the upload completes. To refresh
the display, click Next then Back.
o We do not recommend using multiple browsers
simultaneously on the same maxView
instance. Doing so may cause display issues or freezes;
to restore maxView, refresh the display by pressing F5.
4.1.6. Remote System Access on Linux and Windows
To avoid remote system access failures from Linux
and Windows clients running maxView Storage Manager,
check and update one or all of the following system
and network settings:
Windows:
o Ensure that the DNS server information is properly
configured
RHEL/Linux:
o Set server.properties file permissions to at least
read-only at all levels
1. Stop all maxView services.
2. Set the Permissions of server.properties file to
read and write or read-only at all levels
(Owner, Group and Others).
3. Apply and close.
4. Restart all services in the given order - cim,
agent, tomcat
5. Now try to remote login to this system from any
other system
o Check/update these network settings:
1. Disable SELinux
2. Disable firewall.
3. Disable the ipv6 in the system, if ipconfig shows
both ipv4 and ipv6 address.
4. Remove the virtual bridge virbr0, if present
5. Enter local ip address in 'localip' parameter in
server.properties file
4.1.7. RAID 10 Segment Order
maxView Storage Manager and the Ctrl-A BIOS report the
wrong segment order for RAID 10s, regardless of the order
in which the drives are selected.
Example 1: Create RAID 10 with 2 SDDs and 2 HDDs in maxView
Storage Manager:
(1a) ARCCONF and maxView Storage Manager see the
following RAID segment order:
Device 2 (S1)
Device 1 (H2)
Device 3 (S2)
Device 0 (H1)
(1b) the BIOS/CTRL-A sees the following RAID segment
order:
Device 2 (S1)
Device 1 (H2)
Device 0 (H1)
Device 3 (S2)
(1c) the correct and expected RAID segment order is:
Device 2 (S1)
Device 0 (H1)
Device 3 (S2)
Device 1 (H2)
Example 2: Create RAID 10 with 2 SDDs and 2 HDDs
with ARCCONF:
(2a) the BIOS/CTRL-A sees the following RAID segment
order:
Device 0 (H1)
Device 2 (S1)
Device 1 (H2)
Device 3 (S2)
(2b) ARCCONF and maxView Storage Manager see the
correct RAID segment order:
Device 2 (S1)
Device 0 (H1)
Device 3 (S2)
Device 1 (H2)
4.1.8. RAID 10 Rebuild Order
With a degraded RAID 10 logical drive, the drive is
rebuilt one leg at a time, not in parallel.
4.1.9. Locate Logical Drive Blink LED
In maxView Storage Manager, Locate Logical Drive
continues to blink the LED for a pulled physical drive
in the array after the locate action is stopped.
(For unpulled drives, the blinking stops.) This issue is
not seen with ARCCONF.
4.1.10. ARCCONF Backward Compatibility
ARCCONF is backward compatible with older Adaptec
controller models. As a result, the ARCCONF user's guide
and online help show command options that are not
supported by newer Adaptec controllers, like the
Adaptec Series 7 and Adaptec Series 8 or later products.
Example: With ARCCONF SETMAXCACHE, Adaptec Series 7 and
Series 8 controllers do not support ADDTOPOOL or
REMOVEFROMPOOL
4.1.11. Updating Hard Disk Firmware on VMware Guest OS
Updating the firmware for a SAS hard disk drive with
ARCCONF/maxView can crash (PSOD) the VMware Guest OS.
This issue is seen with SAS hard drives only; with
SATA drives, the firmware update completes successfully.
4.1.12. Hot Swap Issues on VMware CentOS Guest OS
Due to a limitation with the VMware CentOS Guest OS
network configuration, maxView Storage Manager does not
show newly added or removed hot swap drives.
(ARCCONF sees the configuration change but maxView
does not.)
WORKAROUND: (1) reboot the system or restart maxView
services; (2) adjust the network configuration; contact
Adaptec Support for more information.
4.1.13. Enclosure Status Reporting
Enclosure status, in maxView Storage Manager, is
event-driven. As a result, enclosures can have a
"Degraded" status even if related resources (fan,
temperature, power) are performing normally (Optimal
status). For instance, the Enclosure status changes
to "Degraded" if the system reports an "Enclosure
device not responding ..." event, even if other sensor
values are normal.
4.1.14. PHY Status on Enclosure Backplanes
In the Controller Properties window, maxView Storage
Manager shows the Connector Info as "unknown" for all
PHYs on an enclosure-based backplane (for instance, a
backplane attached to connector 1).
4.1.15. Special Characters in Logical Device Names
Special characters are permitted in logical device
names in maxView Storage Manager, the BIOS, and ARCCONF.
However, with Linux ARCCONF (create, setname), special
characters must be "escaped" to ensure proper
interpretation. For example:
ARCCONF SETNAME 1 LOGICALDRIVE 1 arc_ldrive%\$12\&
4.1.16. Speaker Status on SuperMicro SAS2X28 Enclosures
SuperMicro SAS2X28 enclosures do not propagate
the speaker status to maxView Storage Manager. As
a result, maxView always displays the speaker
status as Off.
4.1.17. Online Help Issues
o When opening the maxView Storage Manager help
from a remote Linux system (eg, over a VPN), the
help window may fail to open with a 'can't establish
connection to server' message.
WORKAROUND: replace 127.0.0.1:8443 in the URL with
<system_ip_address>:8443
o In IE11, topics in the help may display with a 'Topics
Not Found' message when their corresponding links are
clicked in the navigation pane of the help.
WORKAROUND: click on the "Add" browser link to add
certification to view the content.
4.1.18. Broadcasting Alerts About Status and Activity
This feature is not supported by the maxView Storage
Manager or ARCCONF and has been removed from the product
documentation.
4.2. Limitations Specific to Series 6, 7, 8 Controllers
4.2.1. RAID-Level Migrations
o The following RAID-level migrations (RLM) are
supported in this release:
- RAID 0 to RAID 5
- RAID 0 to RAID 10
- RAID 5 to RAID 6
- RAID 6 to RAID 5
- RAID 10 to RAID 5
- RAID 5 to RAID 10
- RAID 1 to RAID 5
- SIMPLE VOLUME to RAID 1
- RAID 1 to SIMPLE VOLUME
o When migrating a Simple Volume to RAID 1, maxView
Storage Manager reports the logical drive state as
Impacted (rather than Reconfiguring);
this is normal.
o We do not recommend performing a RAID-level
migration or Online Capacity Expansion (OCE)
on a logical drive with maxCache SSD caching
enabled.
NOTE: maxView Storage Manager grays out the
options for logical drives with maxCache enabled.
ARCCONF terminates the task.
o Always allow a RAID-level migration to complete
before creating a support archive file. Otherwise,
the support archive will include incorrect
partition information. Once the migration is
complete, the partition information will be reported
correctly.
4.2.2. maxCache Device Migration
Only one maxCache Device is supported per controller.
Moving the maxCache Device (all underlying SSDs) from
one controller to another (assuming both controllers
support maxCache) is supported only if (1) the new
controller does not have a maxCache Device or any other
maxCache Device with a conflicting device number and
(2) only after a clean shutdown
on the old controller.
4.2.3. ARCCONF maxCache Device Size Issue
ARCCONF supports >2TB maxCache Devices if you create
the device with the 'max' parameter. However, the
functional limit for the maxCache Device is 2TB,
which is also the limit in maxView Storage Manager.
4.2.4. Power Management Issues
o Power management is not supported on FreeBSD.
o Capturing support logs from maxView or ARCCONF
will spin up drives when power management is
active. This behavior is by design.
o The Logical Drive Creation wizard no longer
includes the option to enable power management settings.
WORKAROUND: Enable power management for the
logical drive from the Set Properties window.
4.2.5. Verify with Fix
In maxView Storage Manager and ARCCONF, the Verify
with Fix operation is NOT available when:
1. The logical drive has a non-redundant RAID level
2. Other tasks are in progress on the logical drive
3. The logical drive is in a non-optimal or impacted state
4.2.6. ATA Secure Erase
In ARCCONF, the ATA Secure Erase operation cannot
be aborted. Once started, it continues to completion.
NOTE: ATA Secure Erase is also available in the
Ctrl-A BIOS and maxView Storage Manager.
4.2.7. Series 6 Controller Issues
The following issues are seen only with Adaptec
Series 6 RAID controllers:
o In maxView Storage Manager, the Preserve Cache
option on the Set Properties window is not
supported on Series 6 RAID controllers. Attempting
to set this option for the Series 6 controller fails.
o Renaming a RAID volume disables the write-cache
(if enabled). You cannot re-enable the write-cache
in maxView Storage Manager.
WORKAROUND: Use ARCCONF to enable the write-cache.
o In a VMware Guest OS under VMware 5.x, maxView
Storage Manager and ARCCONF do not detect existing
logical drive partitions. As a result,
attempting to delete, clear, or erase the logical
drive may fail.
o On Series 6 controllers, maxView Storage Manager
deletes partitioned JBODs without issuing a
warning message.
o Series 6 controllers do not support the ARCCONF
GETPERFORM command.
4.2.8. Simple Volume Support
o In this release, you can create a maximum of 128
Simple Volumes in maxView Storage Manager, ARCCONF,
or the BIOS.
o When a Simple Volume fails, the status remains
unchanged after drive replacement.
WORKAROUND: Manually delete the Simple Volume to
remove it.
4.2.9. Auto-Volume Support
o Changing a controller into Auto-Volume mode
(ARCCONF/BIOS) is not supported if the configuration
includes any logical device type other than Simple
Volume, including a maxCache Device. The mode switch
from RAID mode to Auto-Volume mode is blocked if any
other type of logical volume exists (including
maxCache). After switching to Auto-Volume mode,
you can create and delete Simple Volumes
only in maxView Storage Manager and ARCCONF.
o In Auto-Volume mode, only the first 128 RAW drives
are converted to Simple Volumes; the rest of the
RAW drives remain unchanged. If you uninitialize
a Ready drive while the controller is in Auto-Volume
mode, the firmware converts the drive automatically
until the Simple Volume count reaches the maximum.
4.2.10. Hot-Removing Disk Drives on Xenserver Guest OS
XenServer does not support "hot-removal" of disk
drives from a partitioned logical drive. As a result,
if you hot remove a disk from a logical drive,
the Guest OS becomes inaccessible because the drive
partition remains visible to the OS instead of being cleared.
WORKAROUND: Reboot the XenServer host, detach the
failed partition, then restart the VM.
4.2.11. Changing Read and Write Cache Settings for
Logical Drive
maxView Storage Manager does not allow you to change
the read-cache and write-cache settings for a logical drive
in one step. You must click OK after each change.
4.3. Limitations Specific to Smart Family Controllers
4.3.1. SES Passthrough Commands to Expanders
SES passthrough commands to expanders fail.
4.3.2 Firmware Upgrade Issues
For systems using Adaptec HBA 1000 with an Adaptec
SAS Expander 82885T card, where the ARCCONF utility
is used to upgrade the expander firmware, ARCCONF
may crash if 64-bit chunk sizes are used.
WORKAROUND: Use 32-bit chunk sizes to upgrade/downgrade
the expander firmware.
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PMC-2153191, Issue 2
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