Updating an instance to a Db2 pureScale instance with the db2iupdt command

The db2iupdt command can be used to update an instance other than a Db2 pureScale instance to a Db2 pureScale instance.

1. Verify that a range of six contiguous Db2 Fast Communications Manager ports are available in the /etc/services file as shown in the following example:

   DB2_db2inst1         60000/tcp
   DB2_db2inst1_1       60001/tcp
   DB2_db2inst1_2       60002/tcp
   DB2_db2inst1_3       60003/tcp
   DB2_db2inst1_4       60004/tcp
   DB2_db2inst1_END     60005/tcp

   where db2inst1 is the instance name.
2. As root, you can use the db2iupdt command or the db2isetup command:
   • Using the db2isetup command:
     1. Type the db2isetup command to launch the Db2 Instance Setup wizard.
     2. Proceed to the Set up a Db2 instance panel. Select the Configure new function for an existing Db2 instance option. Click Next.
     3. On the Set up a Db2 Cluster File System panel, the shared disk partition device path and the tiebreaker device path are already complete.
        Note: When you are creating a Db2 pureScale instance in a virtual machine (VM), you do not need to specify a tiebreaker disk. If you do not want to specify a tiebreaker disk, you must use input as the tiebreaker disk option value.
     4. On the Host List panel, add hosts to the Db2 pureScale instance configuration. Hosts are validated as they are added to the list. After you add the hosts you want, click Next.
     5. Click Finish to perform the action.
   • Using the db2iupdt command:

     Run the db2iupdt command as follows:

     /opt/ibm/db2/V11.5/instance/db2iupdt -d -instance_shared_dir /db2sd_20141111022832 -tbdev /dev/sdl -cf vminstlnx64test11 -cfnet  vminstlnx64test11 -m vminstlnx64test12 -mnet vminstlnx64test12 poc2