Non-SCSI-3 I/O fencing requirements
Supported virtual environment for non-SCSI-3 fencing:
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IBM P Server LPARs with VIOS running
Guest operating system: AIX 7.1 or 7.2
Make sure that you also meet the following requirements to configure fencing in the virtual environments that do not support SCSI-3 PR:
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VCS must be configured with Cluster attribute UseFence set to SCSI3
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For server-based I/O fencing, all coordination points must be CP servers
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