[ILUG] Dell Poweredge & raid

[Conor Wynne]

> On 9 May 2005, at 06:01, Barry Redmond wrote:
>
>> We were about to order a Dell Poweredge SC1420, but have been told
>> (by DIT's IT admin) that others in DIT have been unable to get the
>> raid
>> working under Linux on this box due to some sort of driver problem.
>
> As far as I know, the newest LSILogic cards need the "megaraid2"
> module rather than the "megaraid" module.  I've not used an SC1420,
> but I've found that megaraid2 works with the PE2850, PE1850 and PE750.

They are different chipsets Colm. You are correct they should all use the
"megaraid2" and not "megaraid", but the SC series are cheaper (AFAIK).

I bought a 400SC which I am very happy with, very fast I/O but I use LINUX
MD and not the integrated RAID due to an issue with the chipset only doing
hardware RAID0 and not RAID1. I have not even bothered checking if a newer
firmware has been released to address this. Its fast enough for my
requirements as is.

Mine is an LSI21320 controller, a low end array controller, but the two
10K U320 drives are very speedy. For the price it simply could not be
beaten. I even got a PV110T internal tape drive to boot. Dirt cheap for
hyperthreading capable P4's and 1GB ECC. Sweet.

Check the chipset on the 1420SC to see if its the same as mine, and ask if
they have fixed the firmware issue for RAID1.

>      Colm
>
> --
> Colm Buckley / colm at tuatha.org / +353 87 2469146

Regards
Conor.