RE: [smartmontools-support]Monitoring SCSI through a Perc3/Di?

[Bruce A. <ba...@gr...>]

On Fri, 30 Jan 2004, James Herschel wrote:

> > "It is unlikely that a hardware RAID controller will directly support
> > smartmontools"
> 
> Is this a RAID controller?  And if so, is /dev/sda a single SCSI disk, or
> a logical RAID disk?

> Yes, and yes - the 2 drives in the system use RAID 1 - so the two disks are
> collectively one disk.  I'm sure that this is the issue.  I guess I'll have
> to use Dell's monitoring tools.

I don't understand which questions 'yes' and 'yes' are the answers to.

If /dev/sda is a logical disk, rather than a physical disk, then yes, this
is the problem.  In order to access SMART data on a disk, you need to be
able to address THAT physical disk.  So if /dev/sda is a logical device
made up by both physical disks, addressed by the RAID controller, then
smartmontools won't work.

Howerver, your second 'yes' might be to say that /dev/sda is a single SCSI
disk.  In this case, I would expect that you can access the SMART data, in
which case I am still confused about why smartmontools doesn't work
correctly.

Cheers,
	Bruce