hot plug SAS cables

Marc Wiatrowski mwia at
Thu Oct 25 12:56:57 CDT 2007

Wasn't an MD1000, but I have added new SAS arrays live with out any
problems with CentOS/RHEL 4.4 to a PE1950. The new device was found
automagically too.  (Not so with CentOS/RHEL 3.X)


On Wed, 2007-10-24 at 16:57 -0400, Steve Thompson wrote:
> I have a PE2900 running CentOS 4.5 with a single fully-populated MD1000 
> shelf (15 300 GB SAS drives, shelf is not split) plugged into one port on 
> a Perc/5E. I have a need to add a second MD1000 shelf. I can presumably 
> daisy-chain this from the first MD1000, or plug it into the second Perc 
> port, scan the bus and then build volumes with omconfig (it will be 15 
> drives, 7 RAID1 volumes and a global hot spare). However, the MD1000 
> documentation says that "hot swapping of SAS cables is not supported". 
> Given that this is not exactly what I want to do (I'm adding SAS cables, 
> not swapping them), will I be able to add a second MD1000 without frying 
> anything, including my brain? Downtime of the system is not an option.
> TIA,
> Steve
> _______________________________________________
> Linux-PowerEdge mailing list
> Linux-PowerEdge at
> Please read the FAQ at

More information about the Linux-PowerEdge mailing list