[ILUG] Query regarding LSI Sata Raid and Debian
john.coleman at gmail.com
Fri Oct 22 12:45:34 IST 2004
On Thu, 21 Oct 2004 22:36:54 +0100, Gareth Eason <bigbro at skynet.ie> wrote:
> I would be genuinely surprised if this card allows arbitrary expansion
> of a RAID5 array. It may force you to use RAID4 (which is easily
> expandible) and it almost certainly will allow online expansion of RAID0
> and/or RAID1 (though even RAID1 can be striped for performance, meaning
> expansion may lose you performance as measured against a similar setup
> that started out with the same number of drives using striped RAID1.)
> In short, if you want expandible RAID5 specifically, do ask the
> supplier exactly that before parting with your cash. I am highly suspect
> that it will not do it.
Thanks for that, I'll get on to LSI and see what they say :)
Better to be sure than whinging after the fact.
> In your case, a striped RAID1 (if you don't need the capacity) sounds
> like the bees nads (as it were) - since if you're running an FTP server
> I'm assuming you'll be handling primarily uplink traffic (from the POV
> of the server?)
Capacity is an issue.
And there will be a fair bit of upload from the clients to the server,
so write speed is a factor.
> Just my cúpla pingin. YMMV, usual dislaimers apply, IANAL, etc. :-)
> Best regards,
NUIG, Computer Society
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