How Can I Identify Host Services Running on the System Subrack?

The following describes how to identify host services running on a system subrack and provides a reference for stopping services before you replace a system subrack.

1. Log in to DeviceManager of the storage system.
2. Determine disk domains involved in the system subrack.
   1. In the navigation tree, click System.
   2. In the left function pane, click the cabinet where the system subrack resides.
   3. Click the system subrack.
   4. In the function pane below, view and record the disk domain where each disk in the subrack resides.

3. Determine file systems or LUNs contained in those disk domains.
   1. In the navigation tree, click Provisioning.
   2. In the Storage Configuration and Optimization area, click Storage Pool.
   3. Select all storage pools that belong to disk domains in Step 2.4. In the function pane below, view and record file systems and LUNs whose Mapping is Mapped.

4. Determine the share paths to which these file systems map.
   1. In the navigation tree, click Provisioning.
   2. In the File Storage Service area, click Share.
   3. Select all file systems recorded in Step 3.3 one by one and record the share path to which each file system maps. Stop the services running on the share path on the host.

5. Determine the hosts to which these LUNs map.
   1. In the navigation tree, click Provisioning.
   2. In the Block Storage Service area, click Host.
   3. Select the hosts whose Added to Host Group is Yes. In the Mapped LUNs tab below, check whether the LUN recorded in Step 3.3 exists.
      • If yes, there are services related to the system subrack running on this host. Stop the services running on the LUN on the host.
      • If no, go to Step 3.3 until the services on all recorded LUNs are stopped on the host. Then replace the system subrack.