ADSM-L

3 layer storage hierarchy

2006-10-13 17:19:18
Subject: 3 layer storage hierarchy
From: Remco Post <r.post AT SARA DOT NL>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Fri, 13 Oct 2006 23:17:58 +0200
Hi all,

I've been playing with a 3 layer storage hierarchy; random access disk,
sequential disk (file) and finally tape.
 Or more visual:

DISKPOOL (maxsize 2G)
 |
 +---> FILEPOOL (no maxsize)
        |
        +---> TAPEPOOL

Now, I've noticed that when the diskpool is full, or maxsize is
exceeded, clients will backup to filepool as expected. But they will
never fall through to tape, even if the filesize is over 2G and the
filepool is full, or both diskpool and filepool are full.

Yes, there are plenty available scratch tapes, nor is maxscratch
exceeded on the tapepool. I've assigned about 80 volumes to filepool, no
scratch volumes. This all is on TSM 5.3.3.1 on AIX, but I've noticed
this on earlier versions as well.

--
Met vriendelijke groeten,

Remco Post

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