Linux Software Raid 1 Recovery Question

[Christoph Doerbeck A242369]

I can't remember everything... but when we played EIDE RAID last March
at BLU we had several problems.

	+ If you loose a disk, the system will likely hang (but at least
	your data is reasonably protected)  I never did determine if this
	was because we had DMA enabled, but...

	+ If you configure the disks on the 2 independent EIDE busses, 
	then each disk can be a master.  Then use the cheap hot-swap
	trays. If the master fails, simply swap the disks and you're done.
	Just make sure lilo is installed on the mirror too.

Kent Borg wrote:
> On Wed, Oct 02, 2002 at 10:35:45AM -0400, Drew Taylor wrote:
> > I found this on a blog about successfully being able to boot from either 
> > drive. You might find it useful if you have not already figured it out.
> > 
> > http://jeremy.zawodny.com/blog/archives/000201.html#000201
> > http://unthought.net/Software-RAID.HOWTO/Software-RAID.HOWTO.html
> 
> Thanks.  I didn't realize that the Software Raid Howto was so recently
> updated (4 August 2002).
> 
> We have tried a few more experiments with my co-worker's machine, and
> it still isn't booting off of /dev/hdc.  But I can't try everything I
> want as I have to drag him through it.  I guess it is time to do a Red
> Hat install on my kitchen computer so I will have a guinea pig.
> 
> We did notice that newer copies of lilo have an example lilo.conf for
> bootable software raid.  There are some obvious things to try
> there...I just need to get the chance.
> 
> 
> -kb, the Kent who is glad his machine seems happy to keep extending
> its 49-day uptime, and who is glad the big powerplant fire in Boston
> yesterday doesn't seem to affect his power in Somerville.
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