Dell PowerVault MD3820f - Manual (Page 235)

Viewing The Physical Associations
You can use the Associated Physical Components option to view the physical components that are
associated with source virtual disks, snapshot virtual disks, snapshot repository virtual disks, disk groups,
unconfigured capacity, and free capacity in a storage array.
To view the physical associations:
1. In the AMW, select a node in the Storage & Copy Services tab or in the object tree of the Host
Mappings tab.
2. Click View Associated Physical Components. Alternatively, if the selected node is a virtual disk, right-
click the node to open a pop-up menu and select View → Associated Physical Components. If the
selected node is a disk group, unconfigured capacity, or free capacity, right-click the node to open a
pop-up menu and select View Associated Physical Components.
The View Associated Physical Components dialog is displayed with blue dots next to the physical
components that are associated with the selected node.
3. To close the View Associated Physical Components dialog, click Close.
Recovering From An Unresponsive Storage Array
Condition
A storage array can have an Unresponsive status for several reasons. Use the procedure in this topic to
determine a possible cause and solution. The MD Storage Manager can take up to five minutes to detect
that a storage array has become unresponsive or becomes responsive again. Before completing this
procedure, make sure that you wait for some time before you decide that the storage array is still
unresponsive.
To recover from an unresponsive storage array:
1. Check the Tree View in the EMW to see if all storage arrays are unresponsive.
2. If any storage arrays are unresponsive, check the storage management station network connection
to make sure that it can reach the network.
3. Ensure that the RAID controller modules are installed and that there is power to the storage array.
4. If there a problem with the storage array, correct the problem.
5. Perform one of these actions, depending on how your storage array is managed:
– Out-of-band managed storage array — Go to step 6.
– In-band managed storage array — Go to step 12.
6. For an out-of-band managed storage array, ensure that the RAID controller modules are network
accessible by using the ping command to make sure that the RAID controller module can be
reached. Type one of these commands, and press <Enter>.
– ping <host-name>
– ping <RAID controller module-IP-addres>
7. If the verification is successful, see step 8, if not, see step 9.
8. Remove the storage array with the Unresponsive status from the EMW, and select Add Storage Array
to add the storage array again.
9. If the storage array does not return to Optimal status, check the Ethernet cables to make sure that
there is no visible damage and that they are securely connected.
10. Make sure the appropriate network configuration tasks have been performed. For example, make
sure that IP addresses have been assigned to each RAID controller module.
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