On Tue, Sep 06, 2005 at 03:05:50PM -0700, Darren Dunham wrote:
> > Can I split a mirror on Solaris
> 
> There are different ways of creating a mirror on Solaris, and the
> answer depends on how you do it. 
> 
> , back up the mirror member, and then do
> > an incremental copy of the changed blocks when re-establishing the
> > mirror?  My Solaris admin is saying that I need to do a full mirror copy
> > and that's going to be painful.
> 
> SDS/LVM and non-flashsnap VxVM do not support incremental
> re-establishes.  Flashsnap licensed VxVM does.

Darn. We're using VxVM without the Flashsnap option. 

> Of course, both UFS and VxFS support temporary, consistent "snapshots"
> at the filesystem rather than disk level.  You might prefer to backup a
> filesystem snapshot rather than mess with the disk mirroring stuff.

There are multiple problems I'm trying to solve.  One involves taking
down a SAN frame - we're mirrored between frames and will split the
mirror before the SAN frame outage.  snapshots won't help there.

If I am reading you right, I'm out of luck and I'll be doing full
establishes.  That hurts :-(

Thanks,
        .../Ed

-- 
Ed Wilts, Mounds View, MN, USA
mailto:ewilts AT ewilts DOT org