[CentOS] software raid

[Feizhou]

>> 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

> 
> 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.