I have an accounting system running on a bootable SCSI Hard Drive
ID=0 that is formatted under SCO OSR5. I have an identical SCSI drive
that is, as yet, unformatted, but connected as ID=1. How can I make
an exact copy of the primary drive on the secondary for use as off-site
disaster recovery media?
Also, how can I get a third identical SCSI drive to act as a "hot spare"
in case the primary drive fails? If I mount ID=0 and ID=1 drives in
separate removable carriers that allow the ID to be set from a
front bezel ID selector switch, could I remove ID=0 failed drive and
change ID=1 drive to ID=0 and reboot the system? Could I mount
the bootable hot spare to allow accounting data to be updated daily,
thereby creating a true on-line disaster recovery system? (Wouldn't
I have to change some default filesystem names to prevent duplicates
with the primary drive, e.g. boot, stand,etc., in order to mount?)
1. Need procedures to create off-site clone of boot drive.
2. Need procedures to create "hot spare" drive.
3. Need failover strategy if primary drive fails.
Note: every small server that does accounting should have a
disaster recovery plan!