1. The lowest (in general) "rec" value I recommend is 60 -- means at least 60% of the volume is "reclaim-able".
Your rec=20 and rec=10 are way too low! Some sites (to get best bang for buck, in the past) did stair-step every couple hours from rec=95, then rec=90, etc. until reaching end of their window. 2. If you're supporting WinNT or Win2K clients without the infamous DIRMC trick (ie, special management class directing dirs to disk pool which migrates to FILE pool on disk, then copy pool both) your restores *AND* reclamation will run many times longer than necessary (eg, we restored 1.6 million directory objects to a Win2K disk in about 2 hours). Don France Technical Architect -- Tivoli Certified Consultant San Jose, Ca (408) 257-3037 mailto:[EMAIL PROTECTED] Professional Association of Contract Employees (P.A.C.E. -- www.pacepros.com) -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED]]On Behalf Of Coats, Jack Sent: Tuesday, June 11, 2002 12:34 PM To: [EMAIL PROTECTED] Subject: Slow Reclamation - And a need for speed... TSM 4.1.3 on NT 4, 2 LTO drives in IBM 18 tape library. Single SCSI chain. We run reclamation what seems like all day every day, but tapes don't seem to free up in a timely manner. And our offsite tapes are 'growing'. We have been using TSM for about a year with 60 day retention, and have only added two (small) clients in the last 2 months. The pool for onsite TAPEPOOL (that stays in the library) and COPYPOOL that goes off site. The number of tapes in the COPYPOOL (offsite) seem to be growing greater than what would seem reasonable given the size of the TAPEPOOL. Lately I have stopped reclamation and done a 'move data' of some of the lowest use volumes that are offsite, and now they are marked 'pending'. Our current schedule is: Weekdays 1300 till 2000 - update stgpool COPYPOOL rec=20 Weekdays 0900 till 1300 - update stgpool TAPEPOOL rec=10 Saturday 0800 till 2000 - update stgpool TAPEPOOL rec=10 Sunday 0800 till 2200 - update stgpool COPYPOOL rec=20 Would it be a good idea to up the recovery percent? Should I possibly do copypool on MWF from 0900-2000 then tapedata on TTh instead of some on each day? Suggestions? TIA .. JC
