PRIMECLUSTER Global Disk Services Configuration and AdministrationGuide 4.7

7.16.7 Restoration to 2-node Operation after Operation on Only One Node

Take the following procedure to restore 2- node operation after forcibly starting the cluster application on only one node based on "7.16.6 Operation on Only One Node."

Information

2- node operation can be restored also by restarting both nodes. However, if GDS cannot automatically select the latest disk, the startup of cluster application after restarting will fail. In this case, follow a. in "7.16.8 Restoration when the Latest Disk Cannot Be Selected Automatically" and restore the disk.

Restoration Procedure

1. Start the stopped node.

2. Cancel the lock volume of the netmirror volume.

   Take this procedure on both nodes.

   # sdxattr -V -c class_name -v volume_name -a lock=off

3. Restore the iSCSI device and then perform the synchronization copying.

   Take this procedure on the node where the cluster application is forcibly started.

   For -d option of the sdxswap command, within the disks in the netmirror group, specify the disk of the node where the cluster application is not forcibly started.

   # /etc/opt/FJSVsdx/bin/sdxiscsi_ctl -F -e init
   # sdxswap -O -c class_name -d disk_name
   # sdxswap -I -c class_name -d disk_name