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

Rebooting the mpx100 to activate a new firmware version may result in a lost
connection between a single-path iSCSI initiator and the mpx100 iSCSI port
Although the average mpx100 reboot time is under 50 seconds, the reboot can result in a lost
connection bet
ween a single-path iSCSI initiator and the mpx100 iSCSI port.
NOTE:
In dual mpx100 multi-path configurations, a lost connection to the upgraded mpx100 does not disrupt
I/O to a multi-path iSCSI initiator, because I/O fails over to the other mpx100 iSCSI ports.
Workaround
HP recommends that activity on the interfaces be suspended prior to activation of new firmware.
Orderedtaggedcommands
Ordered delivery of SCSI commands cannot be guaranteed for applications running on iSCSI initiators
that use ordered tagged commands.
Workaround
HP is investigating a fix for a future release of mpx100 firmware.
Private iSCSI network for mpx100 GbE ports
HP recommends using a private Gigabit Ethernet network between the iSCSI initiators and the mpx100
in any iSCSI configuration, to ensure adequate performance as well as data security.
The iSCSI technology is low cost, and uses standardized network adapters and topology hardware.
However, existing networks must be evaluated for suitability regarding their capacity to support iSCSI
storage.
Workaround
If dedicated switches are not used, consider separate virtual LANs (VLANs).
ResolvinganIPconflictonanmpx100iftheIPportdoesnotcleartheLED
indication on the mpx100
When the mpx100 recognizes an IP conflict with its management ports, the mpx100 indicates this
condition by blinking its fault LED four times, once per second and then off for two seconds. The
following error message is displayed:
checkDuplicateIp: Detected Error MAC address
The management port is still enabled, and it is still using its IP address.
Workaround
To clear the LED, turn the mpx100 beacon light off with either the mpx100 Manager or the following CLI
command:
beacon off
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