HP 2000 Modular Smart Array Controller Firmware J202P01, J212P01, and J302P01 Release Notes (537811-008, December 2012)

• Issuing the CLI command set cache-parameters read-ahead maximum does not change
the setting although the message indicates success.
Some cases, where the number of volumes is large or for some reason the available read cache
is small, may result in the setting of "maximum" to display a smaller value than expected. The
maximum read-ahead cache is calculated by dividing the available read cache by the number
of volumes presented.
• An NTP server IP address change on one controller does not propagate to the other controller.
Disable NTP on both controllers, set the IP address of the intended NTP server, and re-enable
NTP.
• When a controller is powered off or in a failed state, the Link LED remains ON although the host
indicates a link down state.
Disregard the Link LED when the controller removal LED is illuminated.
• On the Storage Management Unit (SMU) Manage > Scheduler page, the Snapshot Prefix field
allows up to 31 characters to be input but then displays an error message indicating the prefix
can have 1 to 14 characters.
Only type 1 to 14 characters in the Snapshot Prefix field.
• On Linux, a scan may be required to detect a newly presented Volume/LUN.
A Volume/LUN newly presented to a Linux host may not be detected by the Linux operating
system. This is a Linux issue, not an array issue. A Linux scan can be used to force detection of
the newly presented Volume/LUN.
The scan command syntax is:
echo “<Channel> <Target identifier> <LUN>“ >
/sys/class/scsi_host/host<Host number>/scan
Where <Channel>, <Target identifier>, and <LUN> can have a - wild card; <Host
number> can be 0, 1, 2, or 3.
Examples:
◦ echo “- - –” > /sys/class/scsi_host/host1/scan # scan all Channels, all
Targets, and all LUNs of Host 1.
◦ echo “0 - –” > /sys/class/scsi_host/host1/scan # scan Channel 0, all Targets,
and all LUNs of Host 1.
◦ echo “0 0 –” > /sys/class/scsi_host/host1/scan # scan Channel 0, Target
0, and all LUNs of Host 1.
◦ echo “0 0 0” > /sys/class/scsi_host/host1/scan # scan Channel 0, Target
0, and LUN 0 of Host 1.
18 Known issues and workarounds