Hardware RAID diagnostics (Dell PERC 6/i)

Vince jhary at unsane.co.uk
Tue Feb 19 21:27:03 UTC 2008

Jesse Sheidlower wrote:
> I'm in the process of getting a new server, and have been
> planning on a Dell PowerEdge 1950.
> I see from this thread:
> http://lists.freebsd.org/pipermail/freebsd-stable/2008-January/039675.html
> That the PERC 6/i RAID controller seems to work fine with the
> mfi(4) driver; I was planning on a 4 x 73GB RAID5 setup, so
> the problems about addressing > 1TB don't seem to apply.
> My straightforward question is just wondering about how you
> get diagnostics from this device. My server will be in a
> remote location, so I'm curious how I would even know if a
> disk has failed. There wasn't anything about this in the
> mfi(4) manpage, nor in the RAID section of the Handbook.

I've no experience of the 6/i but have a look at the results given by
cd /usr/ports
make search key=megaraid

The megarc util certainly worked on older LSI megaraid controllers and 
I've used the linux megarc util on recent megaraid sas controllers 
(MegaRAID SAS 8708ELP) under centos linux

> My current server is in a 2 x 18GB RAID1 setup, but I pretty
> much plugged it in and it Just Worked, and I never thought
> about it any more; this time I'd like to know more about how
> to manage it.
> Thanks.
> Jesse Sheidlower
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