MVSFORUMS.com

[sowzanya]

what is a page fault?
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sowjanya

[kolusu]

Sowzanya,

Paging occurs when the virtual storage size requirements for a buffer pool exceeds the real storage capacity for the OS/390 image. In this case, least recently used data pages in the buffer pool are migrated to expanded or auxiliary storage. Subsequent access to these pages results in a page fault and the page must be brought into real storage from auxiliary or expanded storage. Paging of buffer pool storage,especially that from auxiliary to real, can negatively impact DB2 performance.

Hope this helps...

Cheers

Kolusu
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Kolusu
www.linkedin.com/in/kolusu

[sowzanya]

Thanks for the info.
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sowjanya