Advfs: defragment 0.5TB//>6.5mio files ?

From: Armin Ollig <armin_at_metzelkueche.tabu.uni-bonn.de>
Date: Wed, 22 Aug 2001 13:03:14 +0200 (CEST)

So far defragment and verify never gave me any trouble. However on the new
DS10 with only 512mb Ram and a large advfsdomain with one fileset verify
swaps a lot (1500mb size).

Even worse is defragment. The process starts and eats 90% CPU without any
sign (using -v switch) of working on files. I "truss"ed it and found that
it reads files under the .tags directory. It is now running for about 24h.
Memory consumption goes steadily up and is now at 28MB and 98% CPU. lsof
says it still does in .tags, no "real" file touched yet. The domain is a
550GB advfs with about 6.5 mio files in it, all fragmented a lot.

bash-2.05# showfsets raid5_1
01
        Id : 3b7b9717.0201cb4d.1.8001
        Files : 10458132, SLim= 0, HLim= 0
        Blocks (512) : 908911964, SLim= 0, HLim= 0
        Quota Status : user=off group=off

bash-2.05# showfdmn raid5_1

               Id Date Created LogPgs Version Domain Name
3b7b9717.0201cb4d Thu Aug 16 11:49:11 2001 512 4 raid5_1

  Vol 512-Blks Free % Used Cmode Rblks Wblks Vol Name
   1L 1104183296 185191168 83% on 256 256
/dev/disk/dsk26g
bash-2.05# showfsets raid5_1
01
        Id : 3b7b9717.0201cb4d.1.8001
        Files : 10458206, SLim= 0, HLim= 0
        Blocks (512) : 908913148, SLim= 0, HLim= 0
        Quota Status : user=off group=off


Any hints ?
--Armin
Received on Wed Aug 22 2001 - 11:04:08 NZST

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