[CentOS] 4.4/64-bit Supermicro/ Nvidia RAID [thanks]
Karl R. Balsmeier
karl at klxsystems.net
Fri Dec 8 20:31:21 UTC 2006
Feizhou wrote:
>
>> disappointing, but it's true. Supermicro verified what all of you
>> said. And since I'm not very interested in software RAID, i'll be
>> dropping a hardware RAID card in and let my vendor know not to try
>> and sell any more of these to those intending to use a Linux OS.
>>
>> I'll try out your software RAID steps to give me something to play
>> with till the hardware card shows up, since they are very clear and
>> concise. Maybe it'll soften the empty 'no hardware raid5' feeling
>> one has at present.
>
>
> Hardware raid is not necessarily faster than software raid. If you are
> going to do raid5...make sure your card has plenty of cache. However,
> that may be moot anyway unless you use some filesystem other than
> ext3...is it a 3ware card? 3ware + RAID5 + ext3 = slow.
Well, I had them ship me a 3ware 9550 card, and yes, am using ext3,
-there's no onboard battery backup module, so the write cache is
disabled. So this would be slow then? Am using this as a Java
Development machine.
Any suggestions as to the filesystem type that would work best? I'll
order a battery backup unit so we can proceed and enable write cache.
-krb
>
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