We've had a few cases coming in regarding this issue so figured we'd post it here for visibility.
If the default gateways field is left blank in the iSCSI Boot Parameters, Windows hosts may be unable to find the LUN & Boot properly. During POST, Cisco VIC option ROM will be able to see the LUN, however during OS boot time, Windows is unable.
UCSM 2.0(1) and onward.
Cisco VIC configured for iSCSI boot
Windows Server 2008
iSCSI Initiator & target IP are in same L2 subnet.
Set the Target Array’s IP as the default gateway of the iSCSI Parameters.
Cisco is Tracking this bug under: CSCub65484. We’re currently working with Microsoft on a fix, no ETA yet but this post will be updated when resolved.
Release notes and Windows Installation Guides are being updated next week.
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