Vijay Adik vadik@us - IBM
Vijay Adik vadik@us - IBM
Vijay Adik vadik@us - IBM
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60<br />
<strong>IBM</strong> Advanced Technical Support - Americas<br />
ASM configurations<br />
AIX parameters<br />
– Async I/O needs to be enabled, but default values may be used<br />
ASM instance parameters<br />
– ASM_POWER_LIMIT=1<br />
Makes ASM rebalancing a low-priority operation. May be changed dynamically. It is<br />
common to set this value to 0, then increase to a higher value during maintenance<br />
windows<br />
– PROCESSES=25+ 15n, where n=# of instances using ASM<br />
DB instance parameters<br />
– disk_asynch_io=TRUE<br />
– filesystemio_options=ASYNCH<br />
– Increase Processes by 16<br />
– Increase Large_Pool by 600k<br />
– Increase Shared_Pool by [(1M per 100GB of usable space) + 2M]<br />
© 2009 <strong>IBM</strong> Corporation<br />
April 17, 2009
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