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Compress for STK4490 drives on OS/390
2000-03-16 16:47:52
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Subject: |
Compress for STK4490 drives on OS/390 |
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From: |
William Boyer <wboyer AT PTD DOT NET> |
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Date: |
Thu, 16 Mar 2000 16:47:52 -0500 |
OS/390 2.6, TSM 3.7.1, STK4490's. By default IDRC compression is turned off
for all drives.
The devclass for this is:
DEF DEVC T3490 DEV=CART MOUNTL=2 MOUNTW=1440 MOUNTR=1 COMP=YES UNIT=3490
After several backups a Q VOL only shows that an average of 860M is written
to each tape. The clients are NOT compressing the data. I would think with
IDRC compression on we would be getting more data per tape.
Anybody using these drives and getting better compression/compaction?
Bill Boyer
DSS, Inc.
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