HW RAID cards (was Re: [Ilugc] Nested RAID 0+1 (SW))

[Arun Khan]

On Tuesday 24 Mar 2009, rajasekhar kuppa wrote:
> > Avoid sw RAID 5 like the plague!
> >
> >
> >
> > 2. even hardware RAID5 is to be avoided for write intensive
> > workloads.
>
> True..


>
> I have one suggestion though... it is very advantageous if you can
> use a RAID card instead of using the CPU for RAID..

I agree too, but for now it is out of my budget.  I'd rather buy the 
extra hard disk than spend $150+ on an decent entry level SATA RAID 
card.

> Hard ware Raid is much advised if you are planning a server with high
> IO.. Many adaptec cards are now having exzcellent support with Linux
> and other open source operating systems.

This particular server, is for our own office; don't anticipate disk IO 
as an issue w.r.t software RAID.

On the hardware RAID, I prefer the LSI cards (Megaraid, Symbios/NCR); 
costs are comparable to Adaptec, and they supported open source drivers 
from way back circa 1995 IIRC.  Whereas, Adaptec has been a convert the 
last few years.  Just my opinion :)

-- Arun Khan



-- 
Arun Khan