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From Terje Marthinussen <>
Subject Re: RAID or no RAID
Date Mon, 27 Jun 2011 23:58:43 GMT
If you have a quality HW raid controller with proper performance (and far from all have good
performance) you cam definitely benefit from a battery backed up write cache on it, although
the benefits will not be huge on raid 0.

Unless you get a really good price on that high performance  HW raid with battery backup,
it is probably not worth it for raid 0.

When that is said, raid 5 is pretty speedy as well with a good controller with battery cache
so don't rule that out if you have the controller anyway and may save you from some manual
recover operations..


On 28 Jun 2011, at 08:46, mcasandra <> wrote:

> Which one is preferred RAID0 or spreading data files accross various disks on
> the same node? I like RAID0 but what would be the most convincing argument
> to put additional RAID controller card in the machine?
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