Managing Shared Disks

Adding IBM Recoverable Virtual Shared Disk after Virtual Shared Disks are already in use

This section describes how to prepare to use the IBM Recoverable Virtual Shared Disk component on a system where the IBM Virtual Shared Disk component has already been in use, whether or not you are adding new disk hardware.

Follow these general steps:

1. If you have been using the IBM Virtual Shared Disk component without the IBM Recoverable Virtual Shared Disk component, disable any scripts that issue commands that change the states of virtual shared disks. The IBM Recoverable Virtual Shared Disk subsystem changes the states of virtual shared disks automatically. Your scripts could disrupt recovery processes.
2. To start the IBM Recoverable Virtual Shared Disk subsystem and your virtual shared disks, do one of the following:
   • Reboot all the virtual shared disk nodes.

   or

   • Use the IBM Virtual Shared Disk Perspective action Control RVSD subsystem and select Initial Reset, or issue the ha_vsd reset command on all virtual shared disk nodes.