We have regular 1gb connections. They only get about 40MB/s with one channel and are able max it out with 4-6 channels. We have maybe 20-30 dbs in the 1-3TB range so basically just the right numbers to want to avoid storage agents.
On Nov 11, 2016, 9:49 AM -0500, Rhodes, Richard L. <rrho...@firstenergycorp.com>, wrote: > What's the connection between the Oracle server and the TSM server? Whether > multiple channels not multiplexed, or, one channel with multiplexing (or some > other combination) may not speed up the backup/restore depending on the > weakest link (source disks, lan, disk pool target disks, tape). Our DBA's > performed multiple tests to figure out the best speed. Once you hit a > throughput limit, I don't think the number of channels or multiplexing would > matter. > > I agree, if you stage to a disk and migrate, then I know of no way to control > what tapes multiple TDP files would be placed on. Since we TDPO direct to > tape via storage agents, we can always give a restore the same channels the > backup used. I don't know how the number of backup channels would effect a > restore if all the files were on the same tape. This is confusing to me. > > > Rick > >
