HW RAID cards (was Re: [Ilugc] Nested RAID 0+1 (SW))
knura at yahoo.com
Tue Mar 24 14:30:33 IST 2009
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.
> 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
> 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
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