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
Table 27. Event descriptions and recommended actions (continued)
Number Severity Description/Recommended actions
● Restart the Storage Controller that logged this event.
● If this event is logged again, shut down the Storage Controller and replace the
CompactFlash.
240 Warning A failure occurred while flushing the CompactFlash.
Recommended actions:
● Restart the Storage Controller that logged this event.
● If this event is logged again, shut down the Storage Controller and replace the
CompactFlash.
● If this event is logged again, shut down the Storage Controller and replace the controller
module.
241 Info. The auto-write-through trigger event that caused event 242 to be logged has been resolved.
Recommended actions:
● No action is required.
242 Error The CompactFlash card in the controller module has failed.
This change met a condition to trigger the auto-write-through feature, which has disabled
write-back cache and put the system in write-through mode. When the fault is resolved, event
241 is logged to indicate that write-back mode has been restored.
Recommended actions:
● If event 241 has not been logged since this event was logged, the CompactFlash probably
does not have health of OK and the cause should be investigated. Another CompactFlash
event was probably logged at approximately the same time as this event (such as event 239,
240, or 481). See the recommended actions for that event.
243 Info. A new controller enclosure has been detected. This happens when a controller module is moved
from one enclosure to another and the controller detects that the midplane WWN is different
from the WWN it has in its local flash.
Recommended actions:
● No action is required.
245 Info. An existing disk channel target device is not responding to SCSI discovery commands.
Recommended actions:
● Check the indicated target device for bad hardware or bad cable, then initiate a rescan.
246 Warning The coin battery is not present, is not properly seated, or has reached end-of-life.
The battery provides backup power for the real-time (date/time) clock. In the event of a power
failure, the date and time will revert to 1980-01-01 00:00:00.
Recommended actions:
● Replace the controller module that logged this event.
247 Warning The FRU ID SEEPROM for the indicated field replaceable unit (FRU) cannot be read. FRU ID
data might not be programmed.
FRU ID data includes the worldwide name, serial numbers, firmware and hardware versions,
branding information, etc. This event is logged once each time a Storage Controller (SC) is
started for each FRU that is not programmed.
Recommended actions:
● Return the FRU to have its FRU ID data reprogrammed.
248 Info. A valid feature license was successfully installed. See event 249 for details about each licensed
feature.
Recommended actions:
● No action is required.
98 Events and event messages