I have an IBM blade server and we've installed RedHat Linux on the machine.
How can we check if we have both disks running as a mirror, or if everything is only running on a single disk? What commands can I use to discover this?
Diana
bladecenteribmlinuxredhat
I have an IBM blade server and we've installed RedHat Linux on the machine.
How can we check if we have both disks running as a mirror, or if everything is only running on a single disk? What commands can I use to discover this?
Diana
Best Answer
Use the
cfggen
utility to manipulate the onboard RAID controller from Linux.cfggen 0 status
will show you what, if any, RAID volumes you have.As a quick check, if you have a mirror,
sda
should have a Vendor/Product ID of:LSILOGIC Logical Volume
.With the onboard controller, the raw disks behind the mirror are also exposed to the OS via sg devnodes. See the output of
lsscsi -g
to find what they are.