[Bug 337419] Re: HP cciss / SmartArray responding slowly

[steve]

Have had this problem with cciss driver since 2006.  Try changing value
in read_ahead_kb (in SLES10 x86) this is located at
/sys/block/ccciss\_cxdx/queue) and see if performance doesn't return.
Try 256.

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HP cciss / SmartArray responding slowly
https://bugs.launchpad.net/bugs/337419
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