Preparing the Secondary Enterprise Controller for Failover

Preparing the secondary Enterprise Controller before you transfer storage requires the following tasks:

• Stopping Sun xVM Ops Center services
• Unmounting LOFS mounts
• Unsharing the /var/opt/sun/xvm/osp/share/allstart directory
• Renaming the /var/opt/sun/xvm directory, and creating an empty /var/opt/sun/xvm directory

Perform the following procedure on the secondary Enterprise Controller.

To Prepare the Secondary Enterprise Controller for Failover

Caution – The following example procedure is based on the example Solaris OS-based storage solution that is described in Configuring Storage for High Availability. You must determine what specific procedures to use, depending on the storage solution that you have implemented.

1. Use the satadm command to check for and shut down Sun xVM Ops Center services on the secondary Enterprise Controller.
   • Solaris OS: Use the /opt/SUNWxvmoc/bin/satadm command.
   • RHEL OS: Use the /opt/sun/xvmoc/bin/satadm command.
     For example:

     # /opt/SUNWxvmoc/bin/satadm status
     online
     # /opt/SUNWxvmoc/bin/satadm stop -w
     satadm: Shutting down satellite using SMF...
     satadm: Satellite services have stopped
     # 
     

     In this example, Enterprise Controller services are online. On a secondary Enterprise Controller you typically install, but do not configure, Sun xVM Ops Center Software. No Proxy Controller services run on a system that has Sun xVM Ops Center software installed but not configured. You can use the proxyadm command to check for and stop Proxy Controller services if required.

   • Solaris OS: Use the /opt/SUNWxvmoc/bin/proxyadm command.
   • RHEL OS: Use the /opt/sun/xvmoc/bin/proxyadm command.
     
2. Unmount the /etc/opt/SUNWuce, /var/opt/SUNWuce, and /opt/SUNWuce LOFS mounts.
   For example:

   # mount -v | grep xvm
   /var/opt/sun/xvm/uce/etc.opt on /etc/opt/SUNWuce type lofs read/write/setuid/devices/dev=1d80018 on Mon Feb 23 08:16:30 2009
   /var/opt/sun/xvm/uce/var.opt on /var/opt/SUNWuce type lofs read/write/setuid/devices/dev=1d80018 on Mon Feb 23 08:16:30 2009
   /var/opt/sun/xvm/uce/opt on /opt/SUNWuce type lofs read/write/setuid/devices/dev=1d80018 on Mon Feb 23 08:16:30 2009
   # 
   # umount /etc/opt/SUNWuce
   # umount /var/opt/SUNWuce
   # umount /opt/SUNWuce
   # mount -v | grep xvm
   #
   

   In this example, the system was installed using one file system to hold all Sun xVM Ops Center software. No separate file system yet exists for the /var/opt/sun/xvm directory.
   

3. Unshare the /var/opt/sun/xvm/osp/share/allstart directory.
   For example:

   # share
   -               /var/opt/sun/xvm/osp/share/allstart   ro   "Allstart Share" 
   -               /var/js   ro,anon=0   "Allstart Share" 
   -               /opt/SUNWjet   ro,anon=0   "JET Framework" 
   # unshare /var/opt/sun/xvm/osp/share/allstart
   # share
   -               /var/js   ro,anon=0   "Allstart Share" 
   -               /opt/SUNWjet   ro,anon=0   "JET Framework" 
   # 
   

   
   

4. Rename the /var/opt/sun/xvm directory to /var/opt/sun/xvm_secondary.
   For example:

   # mv /var/opt/sun/xvm /var/opt/sun/xvm_secondary
   #
   

   
   

5. Create a new directory named /var/opt/sun/xvm.
   For example:

   # mkdir /var/opt/sun/xvm
   # 
   

   This directory is used to mount the transferable storage that contains the /var/opt/sun/xvm directory structure from the primary Enterprise Controller.