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DB2 Diaglog warning problem

Posted on 2005-04-18
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Last Modified: 2012-08-13
I have a DB2 UDB 7.2 installed on AIX 5.1, i have set  buffpage to 280000 (pages), but in db2diag.log appear:

2005-04-17-12.28.14.387904   Instance:ipmprod   Node:000
PID:29228(db2agent (PMPROD))   Appid:*LOCAL.ipmprod.050417101813
buffer_pool_services  sqlbinit   Probe:245   Database:PMPROD

WARNING: estore is OFF but bufferpools are configured to use it 0000 0000                                     ....                

At the same time the catalog table SYSCAT.BUFFERPOOLS is set to:

> db2 "select * from syscat.bufferpools"

BPNAME             BUFFERPOOLID NGNAME             NPAGES      PAGESIZE    ESTORE
------------------ ------------ ------------------ ----------- ----------- ------
IBMDEFAULTBP                  1 -                           -1        4096 N    

  1 record(s) selected.

and db cfg parameter, related to extended storage is:

 Extended storage segments size (4KB)    (ESTORE_SEG_SZ) = 0
 Number of extended storage segments   (NUM_ESTORE_SEGS) = 0

What does it means previous warning in db2diag.log? Could be some problems in future?

Thanks in advance
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Question by:marcogibs
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ghp7000 earned 250 total points
ID: 13806843
how much ram does your machine have?
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Author Comment

by:marcogibs
ID: 13810680
My machine have 15 GByte of RAM, but we can allocate only 5 segment for DB2 7.2 (32bit).
From 0x4... to 0x8... for bufferpool, no more.
The extended memory seems don't work fine.

Thanks
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Author Comment

by:marcogibs
ID: 13813783
Each segment  size is: 256 MB

In DB2 7.2 for AIX 5L seems not possible have more than 5 segments allocated, also with extended storage.
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Expert Comment

by:ghp7000
ID: 13818469
try setting your bufferpool usage to no more than 250,000 4K pages total for all bufferpools
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Author Comment

by:marcogibs
ID: 13878393
Now seems working fine, without warning.

Please could you say why now work fine?

Thanks
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Expert Comment

by:ghp7000
ID: 13936421
Sorry, didnt see your last post, it works because the most memory you can assign to DB2 is 1.75GB total in 32 bit instan ce. If 64 bit instance, the amount of memory you can assign is much larger, to see if if you have 32 bit or 64 bit you can do bootinfo -k
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