About Emulex HBAs
If you use a /usr/openv/volmgr/AVRD_DEBUG touch file on a NetBackup media server with an Emulex HBA driver, the system log may contain entries similar to the following:
Unknown drive error on DRIVENAME (device N, PATH) sense[0] = 0x70, sense[1] = 0x0, sensekey = 0x5
You can ignore these messages.