Hi TSM'ers,
here a sequence of what had happened with a
TSM-SERVER 5.1.8.1 on an IBM H70 under AIX 4.3.3-11
and 6 months old 3584-LTO2 library with 4 drives
1. SPACE RECLAMATION started as follows:
23.12.2003 03:16:14 ANR1040I Space reclamation started for volume
373ABW, storage pool LTO_EC (process number 254).
23.12.2003 03:16:14 ANR1044I Removable volume 373ABW is required for
space reclamation.
23.12.2003 03:16:16 ANR1142I Moving data for collocation cluster 1 of
23.12.2003 03:39:22 ANR8337I LTO volume 373ABW mounted in drive LTO_3
(/dev/rmt4).
23.12.2003 03:41:32 ANR1142I Moving data for collocation cluster 2 of
6412 on volume 373ABW.
2. Reading errors started
rzds3# grep ANR8359 q.actl.20031223.redu
23.12.2003 19:51:55 ANR8359E Media fault detected on LTO volume
373ABW in drive LTO_3 (/dev/rmt4) of library 3584.
23.12.2003 21:32:05 ANR8359E Media fault detected on LTO volume
373ABW in drive LTO_3 (/dev/rmt4) of library 3584.
... and continued
rzds3# grep ANR8359 q.actl.2003122*.redu | wc -l
28
rzds3# grep ANR8359 q.actl.2003123*.redu | wc -l
10
rzds3# grep ANR8359 q.actl.200401*.redu | wc -l
14
Until today I got 52 READING-errors, which show up as well in the
AIX-based "errpt.
3. The current state
tsm: DS3>q proc 254
Process Process Description Status
Number
-------- --------------------
-------------------------------------------------
254 Space Reclamation Volume 373ABW (storage pool LTO_EC),
Moved Files:
907296, Moved Bytes: 30,652,121,214,
Unreadable
Files: 558, Unreadable Bytes:
22,733,876.
Current Physical File (bytes): None
Current
input volume: 373ABW.
Current output volume:
368ABW.
tsm: DS3>q vol 373ABW f=d
Volume Name: 373ABW
Storage Pool Name: LTO_EC
Device Class Name: LTOCL
Estimated Capacity (MB): 181,698.7
Pct Util: 12.9
Volume Status: Full
Access: Read-Only
Pct. Reclaimable Space: 90.2
Scratch Volume?: Yes
In Error State?: No
Number of Writable Sides: 1
Number of Times Mounted: 497
Write Pass Number: 1
Approx. Date Last Written: 29.10.2003 10:31:42
Approx. Date Last Read: 05.01.2004 17:37:16
Date Became Pending:
Number of Write Errors: 0
Number of Read Errors: 53
Volume Location:
Last Update by (administrator):
Last Update Date/Time: 08.07.2003 06:53:37
tsm: DS3>q actlog begint=18:00 s=ANR1142I
Date/Time Message
--------------------
----------------------------------------------------------
05.01.2004 18:00:58 ANR1142I Moving data for collocation cluster 2845
of 6412
on volume 373ABW.
05.01.2004 18:06:05 ANR1142I Moving data for collocation cluster 2846
of 6412
on volume 373ABW.
05.01.2004 18:09:36 ANR1142I Moving data for collocation cluster 2847
of 6412
on volume 373ABW.
4. What to do next ?
1. Wait until the tape is processed with its 6412 clusters and get
the missing data from the copy-tapes ?
2. Can't wait so long because the impact on TSM's DB is very bad,
i.e. I get only 50% of the normal throughput AND 2 tape-drives
are kept for another 2 weeks, i.e.
HALT & RESTAT the server and hope for some positive effect ?
3. Any better idea ?
With some hope for good response and a HAPPY, HEALTHY NEW YEAR
--
MfG / Ciao - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Peter Dümpert Email: p.duempert AT tu-bs DOT
de
Rechenzentrum der Technischen Universität Fax : ++49/531/391-5549
D 38092 Braunschweig Tel : ++49/531/391-5535
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