[mythtv-users] OT Hardware RAID 5 non-Recommendations

John Drescher drescherjm at gmail.com
Thu Dec 21 15:03:17 UTC 2006

> For example, there seems to be a software Raid 5 performance bug which
> limits write performance to single disk speeds even for large writes:
> http://thread.gmane.org/gmane.linux.raid/13932/focus=13932
Thanks for the link. I too have seen this write performance problem.
On a server at work with a 6 drive software raid 6, I get around
267MB/s raw read performance and around 67MB/s write (which is what a
single drive does) in both cases the cpu usage is less than 10%.


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