Looking For RAID Hardware/Software Advice

[Matt Graham]

From: Alex Dean <alex at crackpot.org>
> In general, what resources do you guys know about for checking Linux  
> compatibility for PCI SATA controllers and other hardware?  I haven't  
> had much success finding a site to check this out.

This is tricky, because the compatability depends on the chipset the
controller has, and that info is not easily gleaned from the box the
card comes in.  Modules for most chipsets show up pretty quickly, for
obvious reasons, though.  Just use the latest kernel you can, and it'll
probably work.

> I'm planning a RAID1 setup.  Is it true that I'll get better  
> performance from 2 controllers, vs. a single controller for both  
> disks?

Yeah.  I don't think it'd be worth it, though.  Motherboard CK804
SATA controller, 2 disks in softRAID-1 ~= 50M/sec write.  Which is
fast enough for me, YMMV.

> Does using multiple controllers add any complexity in the md  
> raid setup?

Nope.

-- 
Matt G / Dances With Crows
The Crow202 Blog:  http://crow202.org/wordpress/
There is no Darkness in Eternity/But only Light too dim for us to see