fwiw, i'm backing up my two F520's via ndmp to a DLT7000 and i'm averaging about 11.7GB/hour.
-- michael
On Thu, Mar 25, Will Harper wrote:
Can I have the users' opinions? The top statement was from an unnamed NetApp 740 filer user. The bottom part is NetApp's rebuttal. I see this as two questions. (1) can a 740 support two tape adapters? and (2) who is right(er) about NDMP backup speeds on a 740, with one tape drive adapter?
[USER]With a (potentially) 1.4Tb filer, can it be backed up with two drives reasonable amount of time???? At 15gb/hr (conservative with NDMP), that's lots of hours to back em up..."
[NetApp]Two tape adapter support was certified (tested) only on the F760 and the F630. It was a matter of testing resources with our latest release.
Dump speeds run at up to 25 GB/hr with 1 dump and up to 45 GB/hr with two dumps to two tape drives on a single tape adapter.