Thank you for reply! We have the following situation: Server TSM 3.7 @ MVS with 8 3590 Tapes and 80 GB Primary Storagepool, ATM 60 Clients (all NT4) with TSM 3.x and some big NT Servers with 2 or 3 100 GB Volumes and a lot of files on them. All over dedicated Tokenring into ATM backbone A testrestore (compression off) of a single filespace(volume) uses only one tape (collocation on at filespace-level, reclaim 80%)and shows poor performance. Most of the time the 2 MB/sec limit of Tokenring isn't touched. Server CPU first 15 minutes very busy after that lazy. Restore speed over all under 1 MB/sec. Therefore we speak of a manageability of maximum 100 GB (~24 h restore time) per filespace. Now we intend to migrate to Netapp Toasters over Gigabit Ethernet. What restoretimes can we expect? What can we improve? With Regards Stefan Holzwarth > -----Ursprüngliche Nachricht----- > Von: Shekhar Dhotre [mailto:[EMAIL PROTECTED]] > Gesendet am: Montag, 8. Januar 2001 16:59 > An: [EMAIL PROTECTED] > Betreff: Re: AW: how to speed up NT restore? > > > > I was not restoring only one BOX , there were 3 Boxes > production and development > and another Sun box, ..Which I restored successfully. > Assuming your data is on > multiple volumes, TSM will try to mount all tapes, provided > sufficient drives > available ,I configured all available drives from stk9710 in > daisy chain .. > After that TSM utilized lot of drives, to restore data. TSM > was mounting 5-6 > tapes at a time.. > As I was issuing commands like : > dsmc restore /ora01 ?subdir=yes ?latest /ora01/ > dsmc restore /ora02 ?subdir=yes ?latest /ora02/ > dsmc restore /ora03 ?subdir=yes ?latest /ora03/ > dsmc restore /ora04 ?subdir=yes ?latest /ora04/ > dsmc restore /ora05 ?subdir=yes ?latest /ora05/ > dsmc restore /ora06 ?subdir=yes ?latest /ora06/ > dsmc restore /ora07 ?subdir=yes ?latest /ora07/ > dsmc restore /maetsro ?subdir=yes ?latest /maestro/ > etc? > > In your case if you are restoring only one BOX, I don't know > how TSM will treat > that operation.. , try starting multiple restore sessions. > and don't use GUI > to start multiple restore sessions , and > It boost performance.. See page 62 of redbook using > backup/Archive client > version 4 release 1 > For more details.. > > Let me know what exactly you are doing so that i can help you > , can write me on > [EMAIL PROTECTED] .. > > > Shekhar Dhotre. > IBM certified AIX specilaist > MCSE > Tivoli Storage manager certified 4.1 > > > > > > > > Stefan Holzwarth <[EMAIL PROTECTED]>@VM.MARIST.EDU> on > 01/08/2001 03:43:18 AM > > Please respond to "ADSM: Dist Stor Manager" <[EMAIL PROTECTED]> > > Sent by: "ADSM: Dist Stor Manager" <[EMAIL PROTECTED]> > > > To: [EMAIL PROTECTED] > cc: > > Subject: AW: how to speed up NT restore? > > > How do you achive to use 10 tapes for restore > - do you have 10 different filespaces? > > With Regards Stefan Holzwarth > > > -----Ursprüngliche Nachricht----- > > Von: Shekhar Dhotre [mailto:[EMAIL PROTECTED]] > > Gesendet am: Freitag, 5. Januar 2001 15:11 > > An: [EMAIL PROTECTED] > > Betreff: Re: how to speed up NT restore? > > > > > > Hi i know your problem, > > The first thing i did after coming back from DR test , is > > that i enabled > > collocation on tapepool and copypool , > > try to configure and define more drives to TSM , that is one > > way to go around , > > I did restore with 8-10 drives , in stk9710 > > 2 gone bad after some time :-) but was sufficient. > > Also check TCP/IP window size parameter in dsmserv.opt file > > if it is 0 make it > > 512 , recycle TSM ..That will help to > > imrove performance ... .. You can start restartable restores > > if TSM disconnect > > in between restoration. > > Good luck > > > > shekhar > > > > > > > > > > > > Peter Koblauch <[EMAIL PROTECTED]>@VM.MARIST.EDU> > > on 01/05/2001 > > 07:57:32 AM > > > > Please respond to "ADSM: Dist Stor Manager" <[EMAIL PROTECTED]> > > > > Sent by: "ADSM: Dist Stor Manager" <[EMAIL PROTECTED]> > > > > > > To: [EMAIL PROTECTED] > > cc: > > > > Subject: how to speed up NT restore? > > > > > > Hello, > > > > I have been restoring an NT client for about 8 hours > > now, a bare-metal > > restore. > > The server is an RS/6000 at ADSM 3.10. > > The problem is that it until now only some MBs have been > > restored and > > the client > > will need many GBs before it is done ... Looks like > > this could take > > days. > > > > The activity log and 'q session' shows that the restore > > session is doing > > numerous > > ( DLT) tape mounts, and even when no mounts are > > outstanding very little > > data is > > transferred from the server to the client. Looks like the > > data for this > > client might be spread > > over hundreds of tapes. The storage pool for this client is not > > collocated. > > > > Is there a way to speed up the restore? > > Would it make sense to do an "export node" to tapes > followed by an > > "import node" in order to force > > the data to fewer tapes or would I then just be spending > > time in the > > "export" instead? > > Is there something else I can do? > > > > -- > > any help would be appreciated! > > > > thanks, > > Peter Koblauch > > > > > > > > >