hi john
> power glitch. RAID protects you from a drive crash. To protect against
> power glitches, you need to use a good UPS. To protect against a CPU
> gone mad, well, you need a redundant cluster system where every CPU
> watches the others, and IBM AS/400 might be a good thing to take a
> look at.
for larger systems/clusters:
what about the linux High Availability project ?
and/or the beowolf project ?
> If you're referring to boot possibilities when the first drive goes
> down, it is somewhat of an unsolved issue with software RAID, since
> LILO knows nothing about RAID configurations, and the BIOS even less.
you can use a root-raid drive to solve that ?? ( sorta ? )
if one disk goes down, you can still boot before resorting to floppy
> Linux software RAID, you can see it from the /proc/mdstat output,
I've collected a couple of raid monitor scripts that some of you
have posted...
> respective information. Simplest solution is to poll this information
> periodically and trigger the hotel's fire alarm if something goes
> wrong. ;)
heheeheheh....that will definitely work.... though I think one
might want to do things quietly too....
have fun
alvin
http://www.linux-Consulting.com/Raid
( see the raid monitor scripts under Docs )
