RE: monitoring Raid on Debian
On Mon, 26 May 2003, Ross Tsolakidis wrote:
> Hi Alvin !
>
> I believe it's an American Megatrends card.
> Standard DELL PowerEdge 2400 series.
>
> Don't tell me to throw it away, I just got this box running sweet :)
i think megaraid has something called "megaRaid Monitoring utility"
meant throw away the promise fastrack stuff and get a real hw raid
like 3ware or megaraid or ??
> Correct me if I'm wrong...
> Theoretically, if a disk fails, Debian shouldn't know anything.....
that's the problem...
- the system should keep working as if nothing is wrong ..
w/ or w/o a hot spare
- except you do wanna know about the failed drives
- with a hot sapre.. you have a little longer to figure
out if a disk failed or not .. usually a red light on
the raid array
- connect those led to the monitoring tools
and you're set :-)
- and w/o a spare, the raid subsystem is no longer raid and
running in degraded mode till the failed disk is replaced
- another disk crash and you lose everything on the raid array
- in theory, stick in a new disk.. and wait and it will all
be back to normal ... w/ no data loss.. no down time.. :-)
( if you have to fiddle ... its not a properly config'd raid )
- good backups of raid is essential .. if data loss is not
an acceptable possiblity/reality
c ya
alvin
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