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Best Practices for SAP BI using DB2 9 for z/OS - IBM Redbooks

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Parameters BPK16K0 BPK16K1<br />

VIRTUAL POOL PARALLEL SEQUENTIAL THRESHOLD 50 50<br />

PGFIX ATTRIBUTE YES NO<br />

PAGE STEAL METHOD LRU LRU<br />

Table D-5 <strong>DB2</strong> bufferpool settings - 32 k pages<br />

Parameters BP32K BP32K1 BP32K2 BP32K3 BP32K4<br />

VIRTUAL POOL SIZE (in thousands) 320 320 320 320 80<br />

VIRTUAL POOL SEQUENTIAL<br />

THRESHOLD<br />

HORIZONTAL DEFERRED WRITE<br />

THRESHOLD<br />

VERTICAL DEFERRED WRITE<br />

THRESHOLD (%)<br />

VERTICAL DEFERRED WRITE<br />

THRESHOLD (BUFFERS)<br />

VIRTUAL POOL PARALLEL SEQUENTIAL<br />

THRESHOLD<br />

<strong>BI</strong>A index creation<br />

Examples D-4 through D-8 show cubes that have been indexed to GPFS. They<br />

display examples of horizontal partitioning, vertical decomposition, and smart<br />

compression of <strong>BI</strong>A index creation. Example D-4 shows a list of cubes that were<br />

indexed to <strong>BI</strong>A blade GPFS.<br />

Example D-4 Cubes indexed to GPFS<br />

t11adm@jup001:/gpfs/fs1/T11/TRX00/index> ls -rtl<br />

total 454<br />

drwxr-xr-x 3 t11adm sapsys 2048 2007-08-10 11:52 nap_jsdblc00<br />

drwxr-xr-x 16 t11adm sapsys 2048 2007-08-10 11:53 nap_b49<br />

drwxr-xr-x 3 t11adm sapsys 2048 2007-08-10 11:53 nap_zjb_00_00<br />

drwxr-xr-x 3 t11adm sapsys 2048 2007-08-10 11:58 nap_jsddlc00<br />

drwxr-xr-x 139 t11adm sapsys 8192 2007-08-10 12:01 _trex<br />

334 <strong>Best</strong> <strong>Practices</strong> <strong>for</strong> <strong>SAP</strong> <strong>BI</strong> <strong>using</strong> <strong>DB2</strong> 9 <strong>for</strong> z/<strong>OS</strong><br />

50 50 50 80 80<br />

30 30 30 30 30<br />

5 5 5 5 5<br />

0 0 0 0 0<br />

50 50 50 50 50<br />

PGFIX ATTRIBUTE YES YES YES YES YES<br />

PAGE STEAL METHOD LRU LRU LRU LRU LRU

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