Storage Foundation for Oracle® RAC 7.4.1 Administrator's Guide - Linux

Displaying exported disks and network shared disk groups

The vxdisk list and vxprint commands list network shared disks identifying the disks that are remote to the host from which the command is run. The vxdisk list command also provides an option to list disks while filtering out all remote disks.

To display exported disks, use the vxdisk list command:

# vxdisk list
DEVICE          TYPE          DISK     GROUP  STATUS
disk_01         auto:cdsdisk  -						  -      online exported
disk_02         auto:cdsdisk  -							 -      online exported
vm240v6_disk_01 auto:cdsdisk  -						  -      online remote
vm240v6_disk_02 auto:cdsdisk  -        -      online remote

The disk name includes a prefix that indicates the host to which the disk is attached. For example, for disk vm240v6_disk_01, vm240v6 is the host prefix. The exported status flag denotes disks that have been exported for FSS. The remote flag denotes disks that are not local to the host on which the command is run.

If the accessname argument is specified, disk connectivity information is displayed in the long listing output. This information is available only if the node on which the command is run is part of a CVM cluster.

The -o local option of the vxdisk list command filters out all remote disks.

For example:

# vxdisk -o local list
DEVICE          TYPE          DISK     GROUP  STATUS
disk_01         auto:cdsdisk  -        -      online exported
disk_02         auto:cdsdisk  -        -      online 

The -o fullshared option displays all disks that are shared across all active nodes.

The -o partialshared option displays all disks that are partially shared. Partially shared disks are connected to more than one node but not all the active nodes in the cluster.

Alternately, you can use the vxprint command to display remote disks in a disk group:

# vxprint 
Disk group: sdg

TY NAME         	     ASSOC   	       KSTATE   LENGTH     PLOFFS  STATE     TUTIL0 PUTIL0
dg sdg     	          sdg     	       -        -          -       -         -       -
dm disk_1             vm240v6_disk_1  -      	 2027264    -       REMOTE    -       -
dm disk_4	            vm240v6_disk_4  -  	     2027264    -       REMOTE    -       -
dm disk_5      	      disk5        	  - 		     2027264    -   		  -         -       -

The vxdg list command displays hosts in the cluster that contribute their local disks to the disk group and storage enclosures from which disks have been added to the disk group. The hosts contributing their local disks to the disk groups and storage enclosures from which disks have been added to the disk group are listed under the storage-sources field.

Example output from this command is as follows:

Group:     mydg
dgid:      1343697721.24.vm240v5
import-id: 33792.24
flags:     shared cds
version:   190
alignment: 8192 (bytes)
detach-policy:local
ioship: on
fss: on
local-activation: shared-write
storage-sources: vm240v5 vm240v6 emc0