How to backup safely ?
Bj|rn Smith
smith at compound.se
Wed Oct 3 17:30:56 AEST 1990
At the moment we are backing up our two filesystem /root and /u once
every month using "backup 0...". Besides that we have a streamer tape
permanently inseted performing automatic delta backups of the /u file
system every night by doing "backup 9...".
What happens is any of the tapes Im using is damage ?
I suppose "backup" wont discover that. Can I perform a "restore" to
/dev/null immediately after backup just to ensure that the tape is correct ?
Does "restore" returns any exit code if there is some kind of checksum
error in a tape block ?
Same worries about the disk surface. Will "backup" return any exit code if
it finds a bad spot on the disk ?
Should one perform a fsck before backup ?
How should one do this in a safe way ?
Thanks in advance for any advice !
--
Bj|rn Smith Compound Systems, phone +46 8 7923689
UUCP: {uunet,mcsun}!sunic!comsys!smith
Internet: smith at compound.se
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