Re: hardware raid1 onboard

From: Bastiaan Spandaw (newsgroupaddy15_at_becobaf.com)
Date: 12/27/03 

Date: Sat, 27 Dec 2003 19:57:10 +0100
To: scott@hunterlink.net.au

On Sat, 27 Dec 2003 13:24:38 +0000, Scott Howard wrote:

> Most all hardware RAID of the type
> you'd have for bootdisks is going to result in your RAID-1 device being
> presented to the host as a single disk on a single controller. If your
> controller dies, your machine is dead.

True, but I see that as an "acceptable risk"
I see a raid controller as a motherboard (just a printed circuit board)
without any moving parts there's hardly chance of failure.

Do any of the Sun fire boxes have redundant motherboards? (I know netra's
have)
If not so, why redundant controllers?

Its primarily disks I'm afraid of dying (@ our colo we have >1000 x86 servers
with an avg of 3 disks per host in the last year we've had 6 SCSI disks
die and _NO_ raid controllers)
 

> Anyone demanding hardware RAID for bootdisks is most likely coming from a
> PC background, where the loss of the primary disk in a mirror means that you
> can't boot the machine - this isn't the case with Sun boxes, as the machine
> can be setup to boot from either disk if the other dies.

Thats great to hear.
I'll be setting up a v240 with software raid-1 soon.

Thanks for the info.

Bastiaan

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