stevenm wrote:
> We recently upgraded to ClearCase 3.2.1 and it was my understanding that
> vob locks were a thing of the past with this release of ClearCase.... or
> at least I was told that. Is this incorrect? The impression I am getting
> is that the source in the vobs can be backed up without the vobs having
> to be locked, but the d.o.'s need the vobs to be locked in order for them
> to be backed up? Is this true?
VOB locks are still present and they are still required for backing up VOBs.
In V3.0 we introduced a "vob snapshot" backup mechanism. This mechanism
greatly reduces the duration of the VOB lock. Of course there are tradeoffs
involved. This topic is fully discussed in the ClearCase Administrator's
manual. There are a variety of other approaches that can be used to lessen
the lock duration (e.g., multisite, mirrored disks, filesystems that support
"fast" backup mechanisms).
-- Dale LaBossiere mailto:labo@Rational.com Rational Software http://www.Rational.com/- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
This archive was generated by hypermail 2b29 : Sun May 06 2001 - 00:22:17 EDT