VMware hosts using the Hardware Accelerated Locking feature of the VAAI API are not supported with V184.108.40.206 or V220.127.116.11, due to an issue that can cause both nodes in a Storwize V70000 or SAN Volume Controller I/O Group to reboot simultaneously, leading to an I/O Group-wide loss of access.
VMware hosts configured to use the Hardware Accelerated Locking feature of the VAAI API employ SCSI Compare and Write to control locking on Storwize V7000 and SAN Volume Controller volumes.
An issue exists in the handling of Compare and Write commands in V18.104.22.168 and V22.214.171.124 releases that can lead to both nodes in a Storwize V7000 or SVC I/O Group rebooting simultaneously, which would cause a loss of access to all volumes presented by this I/O Group.
Customers are advised not to use the Hardware Accelerated Locking feature if they are running V126.96.36.199 or V188.8.131.52.
Please refer to VMware support documentation for instructions on how to disable the Hardware Accelerated Locking feature.
V6.3.0.x and earlier are unaffected by this issue.
This issue was resolved by APAR IC84869 in the V184.108.40.206 PTF release.
Internal Use Only
CMVC 152180. Wording provided by Steve White
17 June 2018