> How does TSM handle files that are larger then the tape size?
>From my observation, files are split into as many volumes as needed,
this is true probably not for tapes only but for all device classes.
I had already files split over 3 DLT tapes and it is very common
to have files split over 2 tapes.
Looks like you had another problem maybe with tape drives or drivers.
You may want to turn tsm tracing on to learn in detail about
tape I/O´s causing ANR8301E.
Juraj
-----Ursprüngliche Nachricht-----
Von: French, Michael [mailto:Michael.French AT SAVVIS DOT NET]
Gesendet: Dienstag, 02. März 2004 09:06
An: ADSM-L AT VM.MARIST DOT EDU
Betreff: File size limitation question
How does TSM handle files that are larger then the tape size? I have a DB2
dump file that is 240GB that I am backing up as a flat file. I can get it
into the disk pool without a problem, but I can't seem to get it to migrate
to tape, a few small files move and then it seems to work on the large file
for an hour or two, and then spit the tape out but not move any data. A
little info about my setup:
TSM 5.2.2 on Solaris 8
IBM 3494 Library with 3590E tape drives
I am using IBM "K" tapes that are 80GB uncompress and somewhere around
120-140Gb compressed. From the actlog:
03/02/04 07:12:48 ANR8341I End-of-volume reached for 3590 volume
2C0448.
(PROCESS: 4)
03/02/04 07:12:49 ANR0515I Process 4 closed volume 2C0448. (PROCESS:
4)
03/02/04 07:12:49 ANR8301E I/O error on library IDS02ATL1
(OP=004C6D31,
SENSE=00.00.00.67). (PROCESS: 4)
03/02/04 07:12:50 ANR8945W Scratch volume mount failed . (PROCESS: 4)
03/02/04 07:12:50 ANR1405W Scratch volume mount request denied - no
scratch
volume available. (PROCESS: 4)
03/02/04 07:12:50 ANR8301E I/O error on library IDS02ATL1
(OP=004C6D31,
SENSE=00.00.00.67). (PROCESS: 4)
03/02/04 07:12:51 ANR8945W Scratch volume mount failed . (PROCESS: 4)
03/02/04 07:12:51 ANR1405W Scratch volume mount request denied - no
scratch
volume available. (PROCESS: 4)
03/02/04 07:12:52 ANR8301E I/O error on library IDS02ATL1
(OP=004C6D31,
SENSE=00.00.00.67). (PROCESS: 4)
03/02/04 07:12:52 ANR8945W Scratch volume mount failed . (PROCESS: 4)
03/02/04 07:12:52 ANR1405W Scratch volume mount request denied - no
scratch
volume available. (PROCESS: 4)
03/02/04 07:12:52 ANR8336I Verifying label of 3590 volume 2C0448 in
drive
1ST (/dev/rmt/1st). (PROCESS: 4)
03/02/04 07:12:53 ANR8301E I/O error on library IDS02ATL1
(OP=004C6D31,
SENSE=00.00.00.67). (PROCESS: 4)
03/02/04 07:12:53 ANR8945W Scratch volume mount failed . (PROCESS: 4)
03/02/04 07:12:53 ANR1405W Scratch volume mount request denied - no
scratch
volume available. (PROCESS: 4)
03/02/04 07:12:54 ANR8301E I/O error on library IDS02ATL1
(OP=004C6D31,
SENSE=00.00.00.67). (PROCESS: 4)
03/02/04 07:12:54 ANR8945W Scratch volume mount failed . (PROCESS: 4)
03/02/04 07:12:54 ANR1405W Scratch volume mount request denied - no
scratch
I added a few scratch tapes and it just seems to go through the same
process:
1. Grab the scratch and load it for migration
2. Write to it for awhile:
5 Migration Disk Storage Pool BACKUPPOOL,
Moved Files: 19,
Moved Bytes: 20,480,
Unreadable Files: 0,
Unreadable Bytes: 0. Current
Physical File
(bytes): 211,758,833,664
Current output volume:
2C0448.
3. Error out with ANR8301E I/O error on library IDS02ATL1
(OP=004C6D31,SENSE=00.00.00.67).
4. Remove the tape from the prime pool and back to scratch
5. Repeat the cycle.
This is a new server that I have setup so I might have something set wrong
though I didn't have any problems running a DB backup to tape.
Michael French
Savvis Communications
IDS01 Santa Clara, CA
(408)450-7812 -- desk
(408)239-9913 -- mobile
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