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DB2 - Problem description

Problem IC87858 Status: Closed

DB2PD -BUFFERPOOL MAY RETURN INCORRECT DATLRDS INFORMATION

product:
DB2 FOR LUW / DB2FORLUW / A10 - DB2
Problem description:
db2pd -bufferpool may return incorrect DatLRds information 
where it could double count as compare to the snapshot info via 
SYSIBMADM.SNAPTBSP. 
 
For example, 
 
the following "db2pd -bufferpool" output return DatLRds 24624 
 
Bufferpool Statistics for all bufferpools (when BUFFERPOOL 
monitor switch is ON): 
 
BPID DatLRds    DatPRds    HitRatio TmpDatLRds TmpDatPRds 
HitRatio ... 
1      788         312          60.41%   0          0 
00.00%   ... 
2      24624      12111      50.82%   0          0 
00.00%   ... 
4096 0             0            00.00%   0          0 
00.00%   ... 
4097 0             0            00.00%   0          0 
00.00%   ... 
4098 0             0            00.00%   0          0 
00.00%   ... 
4099 0             0            00.00%   0          0 
00.00%   ... 
 
but the correct value should only be half of the amount (e.g. 
12312).
Problem Summary:
**************************************************************** 
* USERS AFFECTED:                                              * 
* All                                                          * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* See Error Description                                        * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Upgrade to DB2 10.1 FP2 or subsequent fix pack.              * 
****************************************************************
Local Fix:
Use SYSIBMADM.SNAPBP instead.
available fix packs:
DB2 Version 10.1 Fix Pack 2 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 3 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 4 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 3a for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 6 for Linux, UNIX, and Windows

Solution
First Fixed in DB2 Version 10.1 Fix Pack 2
Workaround
not known / see Local fix
Timestamps
Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :
04.11.2012
17.01.2013
17.01.2013
Problem solved at the following versions (IBM BugInfos)
Problem solved according to the fixlist(s) of the following version(s)
10.1.0.2 FixList
10.5.0.2 FixList