[CentOS] info about hdds in raid

Robert Heller heller at deepsoft.com
Tue Nov 3 00:54:30 UTC 2009


At Mon, 02 Nov 2009 18:02:25 -0600 CentOS mailing list <centos at centos.org> wrote:

> 
> John R Pierce wrote:
> > Les Mikesell wrote:
> >> If you can see activity lights, you can 'cat /dev/sd? >/dev/null' to 
> >> make them busy, one at a time (where ? is a, b, c, etc).
> >>   
> > 
> > hahaha, I've done that, only my version is...
> > 
> >     # dd if=/dev/sdX of=/dev/null bs=512
> > 
> > but, same difference
> 
> It's unfortunately about the best we've got when device names are 
> assigned more or less randomly.  NICs are even worse - we need a command 
> to make the lights blink there too.

AH for the days of HSZ70 boxes... There is a command to make a selected
disk in the array blink its light...

> 

-- 
Robert Heller             -- 978-544-6933
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