[rescue] cheap terabytes

[Shawn Wallbridge]

Actually the 3Ware cards support hot swap. I haven't looked into it, but
they advertise it. We have a bunch of the 3Ware cards and I am impressed.
They sure beat the crap from Promise.

shawn

-----Original Message-----
From: rescue-admin at sunhelp.org [mailto:rescue-admin at sunhelp.org]On
Behalf Of Gregory Leblanc
Sent: Friday, July 20, 2001 1:11 PM
To: rescue at sunhelp.org
Subject: Re: [rescue] cheap terabytes


On 20 Jul 2001 12:39:00 -0400, joshua d boyd wrote:
> http://staff.sdsc.edu/its/terafile/
>
> Check it out.  Doesn't see to address data safety much, but still,
> interesting. I wonder if there is a way to make IDE hot swappable.  If you
> turned off a channel, it sems to me that you should them be able to hot
> swap the drives on that channel.  That would mean powering down two drives
> though, so data arangement would have to take that into account.

Not really.  It says that they're using the 3Ware IDE RAID cards, and
from what I remember, those cards only support 1 drive per channel.  And
since they're using the 3Ware cards, you could pretty easily reconfigure
it to use RAID 10, instead of RAID 0 (Which is what I assume they're
using, although I didn't see that they said explicitly).  That would cut
your data capacity in half, but would give you pretty good redundancy.
As for hot swap...  Hmm.  Doesn't sound very feasible to me, not with
IDE anyway.
	Greg

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