On 13/04/08 16:52, Bruno Wolff III wrote:
On Sat, Apr 12, 2008 at 15:42:04 +0200,
"Erik P. Olsen" <epodata@xxxxxxxxx> wrote:
I have therefore decided to switch to the software available with Fedora
and would like to know if the data already located on the disks is
accessible to the Fedora driver or if I have to reformat the drives and
install all the enchilada from the beginning? Luckily I have back-up of
Not necessarily. The answer may also be different if you try to use
dmraid support (assuming it exists for your card) and software raid (md).
everything and can recreate all data it just takes more time. Another even
more important question is will Fedora drive the disks through the
RocketRaid controller or should I get different hardware and if so which?
I wouldn't do that as standard wisdom seems to be that unless you go buy
a real raid card with battery backed cache, you are better off just using
software raid. Most of the cheap raid cards are using their own propietary
version fo software raid and when you use it you are tying yourself to
their hardware. While I haven't made measurements myself, the claim is that
the amount of cpu off loading you get by using a cheap hardware raid card
isn't significant.
I suppose I should use dmraid but what about device driver?
--
Erik.
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