Fumble-fingered. Here's the rest. => On Wed, 1 May 2002 04:20:13 -0400, "Seay, Paul" <[EMAIL PROTECTED]> said:
> It can be used for servers, but that was not the backupsets' original > mission in life. I've got one other use for backupsets: for the big restores. We've got a ~400 GB server (mail store for central IMAP service at UF) that we're setting up to have many virtualmountpoints, each of which will eventually hold ~10GB. (actually ~100GB filesystems) In this situation, tape "stutter" and re-seek can be a major constituent of the restore time. To minimize this, we plan: have a FILE device class available with space ~ 40G + (or know where we'd get one if the hammer dropped) 2) GEN BACKUPSET NODENAME mail01 devc=filefoo GEN BACKUPSET NODENAME mail02 devc=filefoo [...] as many generates running as you have tape drives. as soon as one of these is complete, begin a restore of it, and begin generating the backupset for the next one. The tape is writing to local disk, and therefore is minimally likely to stutter. The restore is reading from disk, and is therefore best able to keep from overwhelming the network. The restore can begin quickly ( after 10GB of database lookup, instead of much more) and can 'pipeline'. - Allen S. Rout
