Backup With Mirrors

[StickyBit]

Questions folks in regards to thread181-27567.

When backing up a system with mirrors using ufsdump or tar do you have to break the mirrors first? if so why?

Please forgive me, but I have allways used Veritas Netbackup for backing up my mirrored disks.

StickyBit.

 

[ayjaycee]

You only have to break the mirrors (mounting & backing up the 'broken' half of the mirror pairs) if there's activity on the mirrored filesystem during the backup (i.e. there's file writes going on). By doing this, you don't affect your production system (as no down-time is incurred) while being able to back up a 'snapshot' of the data.

The method of backing up (ufsdump, tar, Veritas ...) is irellevant to the issue ;-) One by one, the penguins steal my sanity. X-)

http://www.tanda.f2s.com

 

[StickyBit]

Thanks,

StickyBit.