Administrator Guide

12. For an in-band managed storage array, make sure that the host is network accessible by using the ping command to verify that the
host can be reached. Type one of these commands, and press <Enter>.
• ping <host-name>
• ping <RAID controller module-IP-addres>
13. If the verification is successful, see step 14, if not, step 15.
14. Remove the host with the Unresponsive status from the EMW, and select Add Storage Array to add the host again.
15. If the host does not return to Optimal status, go to step 16.
16. Ensure that the host is turned on and operational and that the host adapters have been installed.
17. Check all external cables and switches or hubs to make sure that no visible damage exists and that they are securely connected.
18. Make sure the Host Context Agent software is installed and running.
If you started the host system before you were connected to the RAID controller module in the storage array, the Host Context Agent
software will not be able to detect the RAID controller modules. If so, make sure that the connections are secure, and restart the Host
Context Agent software.
19. If you have recently replaced or added the RAID controller module, restart the Host Context Agent software so that the new RAID
controller module is recognized.
20. If the problem still exists, make the appropriate host modifications, check with other administrators to see if a firmware upgrade was
performed on the RAID controller module from another storage management station.
If a firmware upgrade was performed, the EMW on your management station may not be able to locate the new AMW software
needed to manage the storage array with the new version of the firmware.
21. If the problem persists contact your Technical Support representative.
22. Determine if there is an excessive amount of network traffic to one or more RAID controller modules.
This problem is self-correcting because the EMW software periodically retries to establish communication with the RAID controller
modules in the storage array. If the storage array was unresponsive and a subsequent attempt to connect to the storage array
succeeds, the storage array becomes responsive.
For an out-of-band managed storage array, determine if management operations are taking place on the storage array from other
storage management stations. A RAID controller module-determined limit exists to the number of Transmission Control Protocol/
Internet Protocol (TCP/IP) connections that can be made to the RAID controller module before it stops responding to subsequent
connection attempts. The type of management operations being performed and the number of management sessions taking place
together determine the number of TCP/IP connections made to a RAID controller module. This problem is self-correcting because,
after some TCP/IP connections terminate, the RAID controller module then becomes responsive to other connection attempts.
23. If the storage array is still unresponsive, a problem may exist with the RAID controller modules. Contact your Technical Support
representative.
Locating a physical disk
You can physically locate and identify one or more of the physical disks in an expansion enclosure by activating physical disk LEDs.
To locate the physical disk:
1. Select the Hardware tab.
2. Select the physical disks that you want to locate.
3. Select Hardware > Blink > Physical Disk.
The LEDs on the selected physical disks blink.
4. When you have located the physical disks, click OK.
The LEDs stop blinking. If any other blink operations (Blink Disk Group, Blink Storage Array, Blink Physical Disk Ports, or Blink
Expansion Enclosure) are currently being invoked from another storage management station, these LEDs also stop blinking.
5. In the rare case that the LEDs on the physical disks do not stop blinking, in the AMW, select Hardware > Blink > Stop All
Indications.
If the LEDs successfully stop blinking, a confirmation message is displayed.
6. Click OK.
Locating an expansion enclosure
You can use the Blink option to physically locate and identify an expansion enclosure in the storage array.
The LED activation varies according to the type of expansion enclosure that you have.
• If you have an expansion enclosure with a white LED, the Blink Expansion Enclosure operation causes the white LED on the expansion
enclosure to come on. The LED does not blink.
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Storage array software