HP StorageWorks EVA iSCSI Connectivity Option 3.0 Release Notes (5697-6148, October 2006)

Command View iSCSI host objects Fibre Channel ports are not updated during mpx100
FRU replacement
Command View pr
esents LUNs to the mpx100 Fibre Channel port WWPNs through the the iSCSI host
entry in the Com
mand View EVA hosts folder. If an mpx100 is replaced, the iSCSI host entry must
contain the WWPNs of the replacement to continue LUN presentation.
Workaround
If the replaced mpx100 loses communication after restoring the configuration file, update the iSCSI
controller object WWN as follows:
1. Open the Command View GUI.
2. Check the iSCSI host object in the host folder to verify the Fibre Channel port WWN.
3. If the Fibre Channel ports are not updated with the new hardware’s Fibre Channel port WWN,
manually delete the old Fibre Channel port WWN.
4. Use add host to add the new Fibre Channel port WWN.
5. Verify the new Fibre Channel WWN is displayed.
Creating a LUN on an EVA GL running VCS 3.028 to present to an iSCSI
initiator
When creating a LUN on an EVA GL running VCS 3.028 to present to an iSCSI initiator, the LUN’s
preferred path properties must be set to either Path (controller) A or Path (controller) B.
When an EVA GL is running VCS 3.028 firmware, the controllers are configured in Active/Passive mode.
Because a LUN is not presented out of all EVA ports, you need to set a preferred path to ensure that the
LUN is ava
ilable from a specific controller or from a known iSCSI EVA target port.
If the LUN
is created with no preferences and if the initiator logs into the wrong EVA target port,
the LUN may not be available to the initiator. The initiator must log into the EVA target port that
is presenting the LUN.
Workaround
To ensure that the iSCSI initiator logs into the correct EVA target port:
1. Present only that EVA target port to the initiator. If multiple EVA target ports are presented, only
log into the active EVA target port. Select from one of the following operating systems to
set the iqn name:
• For Windows—log in to the correct active target iqn name.
•ForLinux—settheTargetName in /etc/iscsi.conf to the active target iqn name.
2. Cross-reference the preferred path EVA controller with the correct EVA target port by comparing
the preferred path controller’s Host Port WWPN with the last 16 characters of the EVA target
iqn name.
Thempx100doesnotkeepthecurrentdateandtimeafterarebootorpower
restartifNTPisnotset
The mpx100 cannot save the date and time after a reboot or power cycle.
Workaround
Set the date and time after each reboot or power cycle, or set an NTP server address. If an NTP server
is used, the date and time are automatically set after a reboot or power cycle.
EVA iSCSI Connectivity Option 3.0
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