Hello Everybody,
I am testing TSM 6.1 de-duplication in TSM Server 6.1 for AIX and TSM Client
6.1 for AIX.
After careful reading TSM Server Administration Guide, which is quite weak from
de-duplication point of view, I tried to test next scenario:
1. Environment preparation:
- define FILE device class for primary backup pool;
- define primary backup pool DBK1 (device class FILE, RECLAIM=60,
DEDUPLICATE=yes, IDENTIFYPROCCESS=0);
- define TAPE device class for copy pools;
- define on-site copy pool DCP1 (device class TAPE, DEDUPLICATE=no);
- define out-of-country copy pool DCP2 (device class TAPE,
DEDUPLICATE=no);
- define disaster site copy pool DCP3 (device class TAPE,
DEDUPLICATE=no);
2. Running backups (no client compression):
- run full backup for databases and selective backup for file systems
(the first time and periodically later - for example, 2 times per month);
- run incremental backups for databases and file systems all the other
days;
- copy DBK1 to on-site copy pool DCP1;
- copy DBK1 to out-of country copy pool DCP2 and check out FULL and
FILLING volumes by MOVE DRDATA;
- copy DBK1 to disaster site copy pool DCP3 and check out FULL and
FILLING volumes by MOVE DRDATA;
- backup TSM database to tape;
- enable de-duplication by IDENTIFY DUPLICATE DBK1 NUMPROCESS=1;
- stop idle de-duplication process by IDENTIFY DUPLICATE DBK1
NUMPROCESS=0;
- start reclaim process by RECLAIM STGPOOL DBK1.
Expectations:
1) full or incremental backups are running without de-duplication process
for best performance;
2) copy operations are running without de-duplication process for best
performance;
3) all copy pools contain data without de-duplication for safety;
4) data in DBK1 is de-duplicated after completion of all copy operations;
5) disk space is released in DBK1 by reclaim process on TSM server;
6) de-duplication process in DBK1 is not changing status of DCP1, DCP2 and
DCP3 copy pools.
It looks as working scenario, but I will deeply appreciate any comments and
suggestions.
Kindest regards,
Grigori G. Solonovitch
Senior Technical Architect
Information Technology Bank of Kuwait and Middle East http://www.bkme.com
Phone: (+965) 2231-2274 Mobile: (+965) 99798073 E-Mail: G.Solonovitch AT bkme
DOT com<mailto:G.Solonovitch AT bkme DOT com>
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