New path does not restore target access with VMware/iTX

[admin]

Registering a newly established path does not always complete successfully, even though the initiator-target session was re-established. In such situations, StorTrends iTX has to force error recovery by issuing a session log-out as a part of the recovery process. The initiator recognizes this session killing and re-establishes the session to complete the registering of the newly available path.

Fix: The iSCSI target module parameter for enabling the link recovery must be set using the following commands:

tgtacl -t enable -o linkrecovery

cli set –t tgtoptimizations –n <targetname> -g 3 iscsi

Example:
cli set –t tgtoptimizations –n c0v0 –g 3 iscsi
cli set –t tgtoptimizations –n c0v0 –g 3 iscsi

Release Notes: This feature is needed for supporting SAN Boot and multi-pathing for VMware ESX servers. This requires a trivial out-of-band extension of the StorTrends iTX iSCSI target driver carried in StorTrends iTX Release 2.7 build 1030 (minor revisions 2.3 and earlier). This out –of-band extension to the iSCSI target driver is natively incorporated in minor revisions 2.4 and beyond.