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  #1 (permalink)  
Old 06-10-06, 20:22
M_RAS M_RAS is offline
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SAN storage and db2 database performance.

db2 v8.2.3 and AIX 5.2

we are going to transfer production database to SAN storage, my question is:

In point of performance should I (dba) consider some factores like db or dbm parameters or changing registery variable or .....

I realy appriciate if you help me or give me some resorces for more investigation.
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Old 06-15-06, 23:06
Nageswaran Nageswaran is offline
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Hi

These two registery variables might improve your performance
DB2_STRIPED_CONTAINERS=TRUE
DB2_PARALLEL_IO=*

for SAN

Thanks
Nagesh
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Old 06-16-06, 00:36
Marcus_A Marcus_A is offline
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Quote:
Originally Posted by Nageswaran
Hi

These two registery variables might improve your performance
DB2_STRIPED_CONTAINERS=TRUE
DB2_PARALLEL_IO=*

for SAN

Thanks
Nagesh
DB2_STRIPED_CONTAINERS=TRUE is not needed for any tablespaces created in 8.2 or later.
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Old 06-16-06, 01:01
grofaty grofaty is offline
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Marcus_A,
what about this parameter, if database was backuped up on old computer and restored on new one?
Thanks,
Grofaty
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Old 06-16-06, 02:15
Marcus_A Marcus_A is offline
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Quote:
Originally Posted by grofaty
Marcus_A,
what about this parameter, if database was backuped up on old computer and restored on new one?
Thanks,
Grofaty
Prior to 8.2, the DB2_STRIPED_CONTAINERS=TRUE parameter must be set before the tablespace is created. If you are using 8.2 (where DB2_STRIPED_CONTAINERS=TRUE by default), then the tablespace must be created after conversion to 8.2.
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Old 06-16-06, 08:39
M_RAS M_RAS is offline
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Quote:
Originally Posted by Marcus_A
Prior to 8.2, the DB2_STRIPED_CONTAINERS=TRUE parameter must be set before the tablespace is created. If you are using 8.2 (where DB2_STRIPED_CONTAINERS=TRUE by default), then the tablespace must be created after conversion to 8.2.

Thank you all for your help.
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