The user or process must have permissions to manage the raw
devices, using PV_ROOT, PV_SU_, or PV_KER_RAS
privileges.
To enable I/O fencing on IBM AIX ensure that the users who start Adaptive Server have permission to access the SCSI fixed disks (/dev/rhdisk#),
since Adaptive Server can use the databases or the quorum.
Ensure that all nodes are running AIX.
All disks are PR-capable (DS3000, DS4000, or newer), hdisks, and permit read/write access, using the following “chmod” commands
on both the hdisk and the corresponding character access device
rhdisk: