Re: Q: Mirroring - what is the better way

>>>>> "Jeff" == Jeff Kalchik <jkalchik@spam-me-not.usr.com> writes: Jeff> Jeff> This is a possibility, but you have to be aware of the Jeff> processes using the partitions. I can't speak about Jeff> Informix (yet), but the db system I'm currently using Jeff> would fail under a restore from the cold backup you Jeff> describe. The database files would be logically Jeff> corrupted. Err, I missed a step... bring down your DB instance, break the plex, and bring the instance back up. No problems. Whether it's Sybase/Informix/Oracle... Jeff> Here's something else to consider: hardware mirroring. I'm using an Jeff> HP Model 20 RAID Array (a re-labeled Data General Clarion array) with Jeff> pretty good success. I've had 1 module fail, and no one even noticed Jeff> that it went out. The Informix SysAdmin class I took in August Jeff> indicated that hardware mirroring was preferable, with OS and Informix Jeff> mirroring in second place. Definitely, that works too! -- Pablo Sanchez | Ph # (650) 933.3812 Fax # (650) 933.2821 pablo@sgi.com | Pg # (800) 930.5635 -or- pablo_p@pager.sgi.com ------------------------------------------------------------------------------- I am accountable for my actions. http://reality.sgi.com/pablo [ /Sybase_FAQ ]