How many drives?

[Jonathan Dieter]

On Thu, 2007-09-27 at 16:24 +0100, Andy Green wrote:
> Somebody in the thread at some point said:
> > 
> >    What's a quick (even dirty) way of finding out how many HDs a system
> > has?  Assuming that:
> > 
> >       a) Not all of them are actively used, so they wouldn't be in
> >          /etc/fstab (or visible in df)
> > 
> >       b) /var/log/dmesg isn't available for scanning
> > 
> >       c) /var/log/messages isn't available for scanning
> > 
> >       d) And access to the boxes is (somewhat) restricted - they're in
> > racks, and I really don't feel like yanking each and every one)
> > 
> 
> Cool thing...
> 
> $ cat/proc/diskstats
> 
> lists unmounted stuff as well while the drive is still physically present.
> 
> -Andy
> 

A completely different method that I haven't seen on this thread yet
(though I may have missed it):

hal-find-by-capability --capability storage

Running hal-device on the output (one line at a time) will get you all
sorts of interesting information.

Jonathan
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