[CentOS] Calling All FS Fanatics

Thu Oct 5 04:15:37 UTC 2006
Feizhou <feizhou at graffiti.net>

Dan Stoner wrote:
>> Makes one wonder if Linux is reasonably usable with 3ware. ;-)
>> Does anyone have any bonnie++ results for Linux software RAID 5?  I know
>> software RAID 5 does not really lend itself to a performant software
>> implementation, but the results would be interesting to see, none the
>> less.
> I don't have any hard numbers, but one of my colleagues just doesn't use 
> the 3Ware hardware RAID features because of the performance issues, 
> building his RAID 5 (or possibly RAID 6) arrays in software. Performance 
> screams (=fast).

If he is using 3ware raid cards below 95xx series, raid 5 performance 
sucks due to the lack of a large RAM buffer. 3ware 95xx cards should 
have good performance with raid 5 implementations.