Secure erase/format for U320 SCSI server drives
I've got a bunch of functioning server HDD's:
U320 SCSI hot-swappable type (multiple OEM manufacturers), that I would like to reprovision into another server or recycle.
I need to wipe them well either way. They likely have proprietary business data, but not data requiring certification of wiping.
What is the best practice for wiping SCSI server drives?
For PATA/SATA drives, I usually use the secure erase hardware commands within hdparm, followed by a pass of a block wiping program.
Is there an equivalent for SCSI U320 disks?
What about a sg_format, followed by block overwriting?
I know there is a hardware SCSI eraser for $4 grand, but I don't have THAT many to do.