Verifying Component Operation; Using Leds; Using Management Interfaces - Dell PowerVault ME5 Series Owner's Manual

● Between the controller enclosure and the host.
2. Reconnect power cables to the storage enclosures.

Verifying component operation

1. Restart system devices by moving the power switch on the power supply to the On position in the following sequence:
a. Expansion enclosures first.
b. Controller enclosure next.
c. Data host last (if powered down for maintenance purposes).
Allow time for each device to complete its Power On Self Tests (POST) before proceeding.
2. If you are unable to connect the storage system, ping the management IP addresses for both controller modules. If the
pings fail, check if the management IP addresses are set on the controller modules. If the IP address are not set, enter the
management IP address of both controller modules.
3. If the controller modules contain iSCSI ports, ping the IP address of the iSCSI ports. If the pings fail, check if IP addresses
are set on the iSCSI ports of the controller modules. If the IP address are not set, enter the IP address of the iSCSI ports on
both controller modules.
4. Perform a rescan to force a fresh discovery of all expansion enclosures connected to the controller enclosure. This step
clears the internal SAS layout information, reassigns enclosure IDs, and ensures the enclosures are displayed in the proper
order. Use the CLI or PowerVault Manager to perform the rescan:
To perform a rescan using the CLI, enter the following command: rescan
To perform a rescan using the PowerVault Manager:
a. Verify that both controllers are operating normally.
b. In the System topic, select Action > Rescan Disk Channels.
c. Select Rescan.

Using LEDs

This section describes the LEDs used to verify component operation. These LEDs are located on the enclosure front and rear
panels.
1. Verify front panel LEDs. Front panel LEDs reside on the Ops panel located on the left ear flange. Disk LEDs are located on
the carrier modules.
● Verify that the System Power On/Standby LED is illuminated green, and that the Module Fault LED is not illuminated
● Verify that the enclosure ID LED located on the left ear is illuminated green.
● Verify that the disk module's LED is green or blinking green, and is not amber.
2. Verify rear panel LEDs. Rear panel LEDs are located on controller module, IOM, and PCM face plates.
● For controller modules and IOMs, verify that the OK LED is illuminated green, indicating that the module has completed
initializing, and is online.
● For PCMs, verify that the PCM OK LED is illuminated green on each PCM.

Using management interfaces

In addition to viewing LEDs as previously described, you can use management interfaces to monitor the health status of the
system and its components, provided you have configured and provisioned the system, and enabled event notification.
Select from the following methods to verify component operation:
● Use the PowerVault Manager to check the health icons/values of the system and its components, or to drill down to a
problem component. The PowerVault Manager uses health icons to show OK, Degraded, Fault, or Unknown status for the
system and its components. If you discover a problem component, follow the actions in its Recommendation field to resolve
the problem.
● As an alternative to using the PowerVault Manager, you can run the show system command in the CLI to view the
health of the system and its components. If any component has a problem, the system health will be Degraded, Fault,
or Unknown. If you discover a problem component, follow the actions in its Health Recommendations field to resolve the
problem.
70 Module removal and replacement