[CentOS] software raid
chrism at imntv.com
chrism at imntv.com
Thu Mar 29 17:27:17 UTC 2007
Feizhou wrote:
>
>>> argh...i missed the raid5 on 3ware part.
>>
>> Ah. No, I am using RAID0 since this is just scratch space for
>> editing large uncompressed video files.
>
> Man a 3ware for RAID0? :D
>
> I cannot wait for port multiplexer support on libsata (or is it
> libata?) in Centos 5. An elcheapo AHCI or whatever SATA controller +
> Linux software raid will own 3ware cards on a price/performance basis :D
>
An 8-port 9550SX card is only US$500. Why on earth would I mess around
with software RAID when that card is going to make things a plug and
play proposition? It just isn't worth the hassle.
>>
>> Disks are so cheap and high enough capacity now that I don't even
>> bother with RAID5 anymore. I still don't think (even if I was using
>> RAID5) that I would stray from the "vendor supported" ext3 filesystem.
>>
> Not when you need that fileserver to serve. I'd go with JFS. XFS is
> too risky even if the code was not iffy. ext3 + 3ware RAID5 arrays is
> that bad. IIRC XFS was somewhere like 4-5 times faster than ext3 and
> no, i am not talking about 3ware 75xx/85xx boards. I am talking 3ware
> 95xx boards with onboard RAM.
> _______________________________________________
If you need to serve files in an enterprise situation and you *cannot*
afford a $500 RAID card, then I think you've got more pressing issues. :)
Cheers,
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