Dell PowerVault MD3820f - Manual (Page 240)

4. If you have an out-of-band storage array, use the following procedure. Click Refresh after each step
to make sure of the results:
a) Make sure that the network can access the controllers by using the ping command. Use the
following syntax: ping
If the network can access the controllers, continue to step b. If the network cannot access the
controllers, skip to step c.
b) Remove the storage array with the unresponsive status from MD Storage Manager, and add that
storage array again.
If the storage array returns to optimal status, you have completed this procedure.
c) Examine the Ethernet cables to make sure that you cannot see any damage and that they are
tightly connected.
d) Make sure that the applicable network configuration tasks have been done (for example, the IP
addresses have been assigned to each controller).
5. Make sure that the controller firmware is compatible with MD Storage Manager on your
management station. If the controller firmware was upgraded, the MD Storage Manager may not
have access to the storage array. A new version of MD Storage Manager may be needed to manage
the storage array with the new version of the controller firmware.
If this problem exists, see
Getting Help .
6. Look to see if there is too much network traffic to one or more controllers. This problem corrects
itself because the MD Storage Manager tries to re-establish communication with the controllers in
the storage array at regular times. If the storage array was unresponsive and a subsequent attempt to
connect to the storage array succeeds, the storage array becomes responsive.
7. For an out-of-band storage array, look to see if management operations are taking place on the
storage array from other storage management stations. The type of management operations being
done and the number of management sessions taking place together establish the number of TCP/IP
connections made to a controller. When the maximum number of TCP/IP connections have been
made, the controller stops responding. This problem corrects itself because after some TCP/IP
connections are complete, the controller becomes responsive to other connection tries.
8. If the storage array is still unresponsive, problems may exist with the controllers.
If these problems persist, see Getting Help .
Starting Or Restarting The Host Context Agent Software
The Host Context Agent software module is the software component that resides on the server or
management station that communicates with the MD Series storage arrays. The SMagent software
automatically starts after you reboot the host.
Starting The SMagent Software In Windows
1. Do one of the following:
– Click Start → Settings → Control Panel → Administrative Tools → Services
– Click Start → Administrative Tools → Services
2. In the Services dialog, select Modular Disk Storage Manager Agent.
3. If the modular disk storage manager agent is running, click Action → Stop and then wait
approximately 5 seconds.
4. Click Action → Start.
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