Owners Manual
Table Of Contents
- Dell EMC PowerVault ME4 Series Storage System Owner’s Manual
- Contents
- Storage system hardware
- Troubleshooting and problem solving
- Module removal and replacement
- ESD precautions
- Dealing with hardware faults
- Firmware updates
- Continuous operation during replacement
- Shutting down attached hosts
- Shutting down a controller module
- Verifying component failure
- Customer-replaceable units (CRUs)
- Attach or remove the front bezel of a 2U enclosure
- Replacing a drive carrier module in a 2U enclosure
- Replacing a DDIC in a 5U enclosure
- Replacing a controller module or IOM in a 2U or 5U enclosure
- Replacing a power supply unit (PSU) in a 5U enclosure
- Replacing a fan cooling module (FCM) in a 5U enclosure
- Replacing a power cooling module (PCM) in a 2U enclosure
- Completing the component installation process
- Verifying component operation
- Performing updates in PowerVault Manager after replacing an FC or SAS HBA
- Events and event messages
- Connecting to the CLI port using a serial cable
- Technical specifications
- Standards and regulations
Using LEDs
This section describes the LEDs used to verify component operation. These LEDs are located on the enclosure front and rear
panels.
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.
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.
● Monitor event notification — With event notification configured and enabled, you can view event logs to monitor the health
of the system and its components. If a message recommends that you check whether an event has been logged, or to
view information about an event in the log, you can do so using the PowerVault Manager or the CLI. Using the PowerVault
Manager, view the event log and then hover over the event message to see detail about that event. Using the CLI, run the
show events detail command with additional parameters to filter the output to see the detail for an event. See the CLI
Reference Guide for more information about command parameters and syntax.
Performing updates in PowerVault Manager after
replacing an FC or SAS HBA
After replacing an FC or SAS HBA in an attached host, perform the following tasks:
1. For an FC HBA, update the zoning if a switch is used, then update the host/initiator grouping in PowerVault Manager.
2. For a SAS HBA, update the host/initiator grouping in PowerVault Manager.
For details about managing hosts and host groups in PowerVault Manager, see the Dell EMC PowerVault ME4 Series Storage
System Administrator’s Guide.
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Module removal and replacement