Administering sites and remote mirrors

Failure scenarios and recovery procedures

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site state to ACTIVE, and initiates recovery of the plexes. When all the plexes have been recovered, the plexes are put into the ACTIVE state.

Note: vxsited does not try to reattach a site that you have explicitly detached by using the vxdg detachsite command.

The automatic site reattachment feature is enabled by default. The vxsited daemon uses email to notify root of any attempts to reattach sites and to initiate recovery of plexes at those sites. To send mail to other users, add the user name to the line that starts vxsited in the /etc/init.d/ vxvm-recoverstartup script, and reboot the system.

If you do not want a site to be recovered automatically, kill the vxsited daemon, and prevent it from restarting. To kill the daemon, run the following command from the command line:

#ps -afe

Locate the process table entry for vxsited, and kill it by specifying its process ID:

#kill -9 PID

If there is no entry in the process table for vxsited, the automatic site reattachment feature is disabled.

To prevent the automatic site reattachment feature from being restarted, comment out the line that starts vxsited in the /etc/init.d/ vxvm-recoverstartup script.

Failure scenarios and recovery procedures

The site reattachment daemon will provide automatic reattachment of detached sites. See “Automatic site reattachment” on page 440. This section describes the procedures that you can follow if automatic reattachment does not take place.

For example, this can happen if you have disable automatic reattachment, or if you manually detach a site.

Possible failure scenarios and recovery techniques are listed in the following table:

Failure scenario

Recovery technique

 

 

Disruption of network link between sites.

See “Recovery from a loss of site

 

connectivity” on page 442.

Failure of hosts at a site.

See “Recovery from host failure” on page 442.

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HP Veritas Volume Manager 5.0 -UX 11i v3 manual Failure scenarios and recovery procedures, # ps -afe, # kill -9 PID