Verifying the MaxDB Installation and Configuration

Before you install the HA for MaxDB packages, verify that the MaxDB software is correctly installed and configured to run in a cluster. This verification does not verify that the MaxDB application is highly available because the HA for MaxDB data service is not yet installed.

How to Verify MaxDB Installation and Configuration on Each Node

Perform this procedure on each node or zone that can master the MaxDB resource group.

1. Log in as superuser to a node or zone that can master the MaxDB resource group.
2. Switch the MaxDB resource group to the node that you logged in to in Step 1.

   # clresourcegroup switch -n node sapdb-rg 

   -n node

   Specifies the node to which the MaxDB resource group is to be switched

   sapdb-rg

   Specifies that the MaxDB resource group sapdb-rg is to be switched to another node

3. Confirm that the MaxDB database can be started and be stopped.
   1. Become the OS user who administers the MaxDB database.

      # su - os-sapdb-adm-user

      os-sapdb-adm-user

      Specifies the UNIX user identity of the OS user who administers the MaxDB database. This user's home directory contains the .XUSER.62 file that was created during the installation and configuration of MaxDB. For more information, see Installing and Configuring MaxDB. You specify this user when you set the DB_User extension property as explained in How to Register and Configure a MaxDB Resource.

      If you are using MaxDB 7.5 or MaxDB 7.6, the UNIX user identity of the OS user who administers the MaxDB database is sdb.

   2. Start the SAP xserver.

      $ x_server start

   3. Manually start the MaxDB database instance on the node that you logged in to in Step 1.

      $ dbmcli -U sapdb-adm-key db_online

      -U sapdb-adm-key

      Specifies that the dbmcli command is run with the user key of the database user who administers the MaxDB instance. This user key is created during the installation and configuration of MaxDB. For more information, see Installing and Configuring MaxDB. You specify this user key when you set the User_Key extension property as explained in How to Register and Configure a MaxDB Resource.

   4. Confirm that the MaxDB database instance is started.
   5. Manually stop the MaxDB database instance.

      $ dbmcli -U sapdb-adm-key db_offline

      -U sapdb-adm-key

      Specifies that the dbmcli command is run with the user key that you used for starting the database in Step c

   6. Confirm that the MaxDB database instance is stopped.