Tom, I too am interested as our Database will grow to 300GB and I believed we could backup and restore in two hours.
Do yo backup the full 650GB each night with Util or do you use Rman and incrementals? Many Thanks Mike Wiggan, TCS/31 Infrastructure Integration Specialist Petroleum Devlopment Oman LLC ([EMAIL PROTECTED]) -----Original Message----- From: Richard L. Rhodes [mailto:[EMAIL PROTECTED]] Sent: Monday, August 26, 2002 6:24 PM To: [EMAIL PROTECTED] Subject: Re: Backup of 300 GB Data within 12 Hours On 26 Aug 2002 at 9:00, Kauffman, Tom wrote: > I do a 650+ GB SAP/R3 database in 2 hours 40 minutes. TSM and SAP on > RS/6000 systems (660-6M1 now, was S7A two weeks ago). All disk is IBM > ESS and the backups run over two dedicated Gigabit ethernet networks > to four IBM LTO tape drives. No compression on the client. The restore > runs in about 5 hours. The files average about 10 MB each, as TSM sees > them (1.6 GB objects, six-way multiplexing). I'm a little confused by your configuration. . . . 650gb database in 10mb files? That would be 65000 files. Did you mean 10gb/file? 1.6gb objects? Doesn't tsm see the individual files? Are you doing raw backups of the filesystems? six-way multiplexing? I didn't think tsm supported multiplexing (multiple datastreams concurrently onto one tape), or is this something else? Is this something brbackup does? Sorry for the questions, but I'm interested in your specifics, since we will be backing some very large SAP databases to LTO in the near future. Thanks Rick
