Steps to permanently uninstall IBM Storage Scale

IBM Storage Scale maintains a number of files that contain configuration and file system related data. Since these files are critical for the proper functioning of IBM Storage Scale and must be preserved across releases, they are not automatically removed when you uninstall GPFS.

Follow these steps if you do not intend to use IBM Storage Scale on any of the nodes in your cluster and you want to remove all traces of IBM Storage Scale:
Attention: After following these steps and manually removing the configuration and file system related information, you will permanently lose access to all of your current IBM Storage Scale data.
  1. Unmount all GPFS file systems on all nodes by issuing the mmumount all -a command.
  2. Issue the mmdelfs command for each file system in the cluster to remove GPFS file systems.
  3. Issue the mmdelnsd command for each NSD in the cluster to remove the NSD volume ID from the device.

    If the NSD volume ID is not removed and the disk is again used with GPFS at a later time, you receive an error message when you specify the mmcrnsd command. For more information, see Disk device name is an existing NSD name.

  4. Issue the mmshutdown -a command to shutdown GPFS on all nodes.
  5. Uninstall IBM Storage Scale from each node:
    • For your Linux® nodes, run the uninstallation program to remove GPFS for the correct version of the packages for your hardware platform and Linux distribution. For example, on SLES and Red Hat Enterprise Linux nodes:
      • rpm -e gpfs.crypto (IBM Storage Scale Advanced Edition, IBM Storage Scale Data Management Edition, or IBM Storage Scale Developer Edition only)
      • rpm -e gpfs.adv (IBM Storage Scale Advanced Edition, IBM Storage Scale Data Management Edition, or IBM Storage Scale Developer Edition only)
      • rpm -e gpfs.gpl
      • rpm -e gpfs.license.xx
      • rpm -e gpfs.msg.en_US
      • rpm -e gpfs.compression
      • rpm -e gpfs.base
      • rpm -e gpfs.docs
      • rpm -e gpfs.gskit
      On Ubuntu Linux nodes:
      • dpkg -P gpfs.crypto (IBM Storage Scale Advanced Edition and IBM Storage Scale Data Management Edition only)
      • dpkg -P gpfs.adv (IBM Storage Scale Advanced Edition and IBM Storage Scale Data Management Edition only)
      • dpkg -P gpfs.gpl
      • dpkg -P gpfs.license.xx
      • dpkg -P gpfs.msg.en-us
      • dpkg -P gpfs.compression
      • dpkg -P gpfs.base
      • dpkg -P gpfs.docs
      • dpkg -P gpfs.gskit
    • For your AIX® nodes:
      • installp -u gpfs
    • For your Windows nodes, follow these steps:
      1. Open Programs and Features in the Control Panel.
      2. Uninstall IBM General Parallel File System.
      3. Reboot the system.
      4. From a Command Prompt, run the following command:

        sc.exe delete mmwinserv

  6. Remove the /var/mmfs and /usr/lpp/mmfs directories.
  7. Remove all files that start with mm from the /var/adm/ras directory.
  8. Remove /tmp/mmfs directory and its content, if present.