IBM Power Systems 775 Manual page 295

Example 5-17 Run nodeset on all diskless groups to prepare then for booting with XCAT SNs
$ nodeset storage osimage=? (setup install/boot for storage nodes)
$ nodeset compute osimage=? (setup install/boot for compute nodes)
$ nodeset login osimage=? (setup install/boot for login nodes)
Important: The osimage definition name must be the image name that you are using for
that node type.
The disk enclosures received power when the frame in which they are enclosed exited
rack_standby mode. This configuration powers up the disk enclosures so that they are
operational when the GPFS storage nodes to which they are attached are started.
The frames, CECs, and xCAT SN are powered up and active. We validated that the xCAT SN
properly enabled the CNM HFI network, and that diskless installation environment is set up.
The administrator boots the GPFS I/O storage nodes, and begins to configure GPFS on each
of the storage nodes by using the following rpower command that works with the storage
node group:
$ rpower storage on
To verify that the storage node OS booted up properly, the administrator checks if the required
services are active. This task includes checking the status of the service nodes by using the
following rpower command:
$ rpower storage state (verify that the storage node state is successful)
Important: Because of the significant number of disk drives, there is a delay in the total
time it takes for a storage node operating system to complete the boot process.
The administrator needs to reference the GPFS documentation to properly validate that the
disks are properly configured. For more information, see this website:
http://publib.boulder.ibm.com/infocenter/clresctr/vxrx/index.jsp?topic=/com.ibm
.cluster.gpfs.doc/gpfsbooks.html
After the GPFS storage nodes operating system completes the boot and the disks are
configured, we start GPFS on each storage node. The administrator executes the following
GPFS commands from the xCAT EMS:
$ xdsh storage -v mmstartup (startup GPFS environment on storage nodes)
$ xdsh storage -v mmgetstate (verify that GPFS is running and operational)
Optional - Check the status of the disks
The following commands help check the status of the disks:
$ xdsh storage -v mmlsdisk all --not -ok (list all disks on storage nodes which are not
"ok")
$ xdsh storage -v mmlspdisk all --not -ok (list all physical disks which are not "ok" on
storage nodes)
Chapter 5. Maintenance and serviceability
281