RAID performance problems

Dimitris sehh at
Sat Jan 25 01:30:58 GMT 2003

On Sat, 25 Jan 2003 00:48:41 +0000 "Kevin O Connor" <kevin at> wrote:

> just a though but has the card been set to optimize reads. I don't know this 
> particular RAID card but most have the ability to use the memory to optimism 
> read write or a balance of both
> Kevin

I am not aware of such an option. The only performance options are:

Direct I/O or Cached I/O
Write Through or Write Back
ReadAhead or No readahead or Adaptive readahead

I tried several different combinations, but i could only make things worse.

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