Quick Start

Returning from ADSM Version 3 to a Previous Version

To return to the ADSM Version 1 or ADSM Version 2 server:

1. Use the online BACKUP DB command to take a full backup of your Version 3 database (to be restored if you return to Version 3). Refer to ADSM Administrator's Guide for detailed information on this command. For example,
   

   backup db dev=<device class> type=full

2. Save a copy of the volume history and device configuration files. For example, to save the volume history in a file called VOLHIST and the device configuration in a file called DEVICES, enter:
   

   backup volumehistory filenames=volhist backup devconfig filenames=devices

3. Stop the Version 3 server by using the halt command after the database backup has successfully completed.
   

   halt

4. Remove the ADSM devices currently defined with this procedure :

   1. Type smit & to use the Software Management Interface Tool.
      

      smit &

   2. Select Devices.

      This gives you a device selection screen. Select your device.
      

      You do not need to remove the non-ADSM devices that ADSM uses (3480, 3490, and 3590 drives, and 3494 and 3495 tape libraries).

   3. Select Remove for the device selected in the preceding step.

      Do not keep the configurations in the database, but record the device SCSI address so you can use them later to redefine the devices. On the SMIT screen (Keep definition in database) for defining devices, change the yes to no.

5. Remove the Version 3 server software by entering the following commands:
   

   /usr/sbin/installp -ug adsm.license /usr/sbin/installp -ug adsm.devices /usr/sbin/installp -ug adsm.server

   Note:

   Also remove any other NLS ADSM packages you may have installed (for example, adsm.msg.[lang].devices).

6. Install the ADSM Version 1 or ADSM Version 2 server software (and the most recent maintenance).

7. Define the ADSM devices. See "Using Tape and Optical Devices Devices with ADSM" and ADSM Administrator's Guide.

8. Reinitialize the server database and recovery log using the DSMSERV INSTALL parameter. Refer to ADSM Administrator's Reference.

9. Reload the Version 1 database using the DSMSERV LOADDB function or reload the Version 2 database using the DSMSERV RESTORE DB function. Refer to ADSM Administrator's Reference for details on these commands.

10. Start the previous version server.
    

    ./dsmserv

11. Issue an AUDIT VOLUME FIX=YES command for each sequential storage pool volume that has a volume type of STGDELETE or STGREUSE to audit all disk storage pool volumes.

This procedure can result in a loss of client files originally referenced by the Version 1 or Version 2 database. Some client files may have been moved, overwritten, or deleted by the Version 3 server program.