On Wednesday 04 May 2005 19:41, Niall O'Higgins wrote:
> Go for either full software RAID or a real hardware RAID card. I
> would recommend LSI Logic MegaRAID - rebranded as some of the PERC
> series from Dell - they are VERY good. They give proper docs (unlike
> Adaptec) so are well supported without any need for cruddy
> binary-only, i386-only driver blobs.
>
They're basically good controllers - I'm particularly tempted by the
SATA megaraid that has appeard.
Note however that while the driver is open source, I haven't seen
open-source monitoring for them, only the binary "megamon", buried
somewhere on Dell support site as lin_apps something-or-other (see
linux.dell.com): then again I haven't looked very hard yet.
Do note that you should check _exactly_ what the entire card
is, not just the chipset (and note that Dell uses the PERC designation
for anything RAID Controllery that fits in a PowerEdge, doesn't
correspond to chipset): Certain megaraid PERC4 cards are somewhat
crippled by being stuck with a crappy base PCI bus interface and a
low-clocked megaraid chip. at least compared to later LSI or PERC4(e)
which have PCI-X or even PCI-Express bus interfaces and faster clocked
megaraid chips.
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