I have recently added a Virtual Tape Library to my TSM 5.2.6 Windows server. And have noticed that TSM starts reclamation differently for the Primary storage pools on the VTL than it does for the Primary Storage pools on my tape library. (sequential storage pools on both)
Reclamation is normally set at 100. When I lower the threshold on a storage pool using the Tape Library, reclamation starts immediately, But when I lower it on the Virtual Tape library, it waits up to an hour to start. I know that Tivoli automatically checks about once an hour for volumes that have become eligible for reclamation. But for the real tape pools, reclamation starts immediately when I manually lower the threshold, while on the Virtual tape pools, it waits. (currently it will start at 21minutes and 2seconds after the hour, So if I lower the threshold at 9:20, reclamation will start at 9:21:02 and if I lower it at 9:22, reclamation will start at 10:21:02) If at any time, I lower the threshold on a storage pool using the real tape library, reclamation start immediately. The only difference between the storage pool definitions that I'm aware of is that the Storage pools using the Virtual tape library have a "Next Storage Pool" named, and the Storage pools using the real tape library have no "Next Storage Pool" named. This really isn't a problem, but I was just curious if anyone knows why Tivol treats the two types of storage pools differently. Doug Thorneycroft > Systems Analyst > County Sanitation Districts of Los Angeles County > 1955 Workman Mill Road > Whittier, CA 90601 > Tel: (562)699-7411, Ext. 1058 > Fax:(562)695-6756 > www.lacsd.org > > >
