Hi Sam, I went thru this about two years ago, moving db volume from raw volumes on Solaris to a netapp. My experience was that it got faster as the number of db volumes decreased. The decreased because the old volumes were 6GB and the netapp volumes were 20GB. What I this the problem is, is that TSM updates every dbvolume and log volume every time 4MB is moved. You know that 1 MB reserved at the start of each volume? I vaguely remember hearing that every db volumes knows about every other volume and the info is in the 1MB reserved.
How many db volumes to you have? Here are some stats I gathered at the time to report to IBM. They show the megs/minute going up as the number of db volumes decreases. If you are in this situation there is nothing to do but push through it. thanks, Bill Colwell Draper Lab ------------ stats ------------- minutes dbv size bytes MB/min Comments 1021 5,658,116,096 5.29 68 db volumes 1114 6,446,645,248 5.52 1024 6,446,645,248 6.00 898 6,446,645,248 6.85 913 6,446,645,248 6.73 843 6,446,645,248 7.29 837 6,446,645,248 7.35 853 6,446,645,248 7.21 819 6,446,645,248 7.51 769 6,446,645,248 7.99 722 6,446,645,248 8.52 623 6,446,645,248 9.87 44 db volumes 683 6,446,645,248 9.00 583 6,446,645,248 10.55 589 6,446,645,248 10.44 536 6,446,645,248 11.47 492 6,446,645,248 12.50 467 6,446,645,248 13.16 375 6,446,645,248 16.39 366 6,446,645,248 16.80 28 db volumes 326 6,446,645,248 18.86 293 6,446,645,248 20.98 319 6,446,645,248 19.27 231 6,446,645,248 26.61 21 db volumes 187 6,446,645,248 32.88 335 12,096,372,736 34.44 299 12,096,372,736 38.58 199 12,096,372,736 57.97 168 12,096,372,736 68.67 14 db volumes -----Original Message----- From: ADSM: Dist Stor Manager [mailto:ads...@vm.marist.edu] On Behalf Of Sam Sheppard Sent: Wednesday, December 17, 2008 10:59 PM To: ADSM-L@VM.MARIST.EDU Subject: TSM database on NETAPP TSM Server 5.5.1 on Solaris10, Sun V240. I need to relocate my database volumes and have been assigned a LUN on one of our Netapp FAS6030 devices. I allocated 6 new volumes and then deleted one of the old volumes (5GB) and the move process started and is running at about 600MB/hour. I'm not real familiar with the performance characteristics of the Netapp box, but am assured by the Unix/Netapp guys that it's a great performer (it's FC-connected). This seems way slow to me and I haven't seen this poor performance doing the same kind of operation on my ESS. Anyone have any experience with the TSM database on one of these devices? I know the original network-attached storage had write performance problems, but this seems ridiculous. TIA Sam Sheppard San Diego Data Processing Corp. (858-581-9668)