Subject: VSAM - IDCAMS Backup Puzzle
From: David Stuart (David.Stuart@ventura.org)
Date: Tue Sep 01 2009 - 17:29:31 EDT
Afternoon, We have something going on with IDCAMS Backup that has us puzzled. We have two VSAM Catalogs involved: Cat1 - 5 volumes, @350 files, 44% free space, files are pretty evenly spread across all 5 volumes (thank you, VSE Navigator!). Cat2 - 5 volumes, @135 files, 54% free space, files are on volumes 1 - 3. Volumes 4 and 5 are empty. Cat1 - The IDCAMS Backup takes 7 - 9 cartridges. Cat2 - The backup averages 24 cartridges. All Disk volumes reside on a DS6800, and are defined as 3390-3. Tape drives are IBM 3480-B22 with IDRC active. Ditto shows that the cartridges are 'compacted' with IDRC. The IDCAMS Backup JCL is defined the same for both catalogs: Backup (*) Blksz(65535) Buffers(8) Nocompact The Tape Datasets are defined the same way to Dynam/T with Density 08, IDRC/compacted. We've tried changing various JCL settings for Cat2, but the backups still come out the same: Cat1 - 7 - 9 cartridges, Cat2 - @24 cartridges. Ideas? TIA, Dave Dave Stuart Prin. Info. Systems Support Analyst County of Ventura, CA 805-662-6731 David.Stuart@ventura.org
This archive was generated by hypermail 2b25 : Wed Sep 02 2009 - 20:20:12 EDT