Really? That's odd because from my experience I've never found tape to tape as fast as disk to tape. I guess it depends on a lot of factors, but generally speaking I've gotten better speeds going from disk, mainly because read times are faster from disk (especially properly configured local disk).
See Ya' Howard > -----Original Message----- > From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf > Of Allen S. Rout > Sent: Tuesday, October 14, 2008 10:50 AM > To: [email protected] > Subject: Re: [ADSM-L] Backup order > > >> On Tue, 14 Oct 2008 10:08:54 -0500, Howard Coles > <[EMAIL PROTECTED]> said: > > > The best I can remember you can't "migrate" into a copypool. > > Right. :) > > Additionally, > > >> -----Original Message----- > >> From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On > Behalf > >> Of Orin Rehorst > >> Sent: Monday, October 13, 2008 5:20 PM > >> To: [email protected] > >> Subject: [ADSM-L] Backup order > >> > >> Our TSM was set up to nightly: > >> > >> 1. backup the VTLpool to copypool > >> 2. backup the tapepool to copypool > >> 3. migrate stg VTLpool (to tapepool) > >> > >> Step 2 is tape-to-tape and therefore slow. > > I think that you will find tape-to-tape to be as fast or faster than > disk-to-tape. > > - Allen S. Rout
