Subject: Re: Recommendation for Raid 0 support under NetBSD-1.5.3 or 1.6
To: None <port-i386@netbsd.org>
From: gabriel rosenkoetter <gr@eclipsed.net>
List: port-i386
Date: 06/19/2003 17:29:54
On Thu, Jun 19 2003 gabriel rosenkoetter wrote:
> 
> On Thu, Jun 19, 2003 at 07:49:23AM -0700, Gerald C. Simmons wrote:
> > After suffering a HD crash on my NetBSD machine, and fortunately,
> > subsequently being able to get ALL the data off the drive, I started
> > thinking how nice it would have been to have that drive mirrored.
> >
> > Does anyone have a recommendation for a RAID 0 IDE card that NetBSD
> > would easily support mirroring on?
> 
> I believe you mean RAID *1*. 0's slicing, 1's mirroring.
> 
> I'm not aware of any IDE-based RAID hardware (which doesn't mean it
> doesn't exist), but is there something wrong with just using
> RAIDframe for this? See raid(4) and raidctl(8).

I was unaware of these S/W features. I'll look into them.

> 
> If you're after a mirror of your boot partition... make it small,
> make a copy, and rsync it to update. (Does it *really* change that
> much? Are you sure?)

Interestingly enough, I was already doing this. When my drive failed, it was
doing the typical -click-click-click- drive reset, and would allow NO
access whatsoever. All my NetBSD partitions were on this drive (/,/usr,
/usr/src,/home.) I was able to recover the data from the drive, by cooling
it down in a refridgerator, packing it in ice to keep it cool, and mirroring
it by hand over to a new drive.

Next time, I may not be so lucky; which is why I'm looking into RAID *1*.

> 
> --
> gabriel rosenkoetter
> gr@eclipsed.net
> 

-Gerry