Dell EMC ME4 Series - Temperature Sensors; Host I;O

enclosure IDs, if possible. To correct this condition, make sure that both controllers are up, and perform a rescan using the ME Storage
Manager or the CLI. This will reorder the enclosures, but can take up to two minutes for the enclosure IDs to be corrected.
To perform a rescan using the CLI, type the following command:
rescan
To perform a rescan using the ME Storage Manager:
1 Verify that both controllers are operating normally.
2 Do one of the following:
• Select the System tab and click Rescan Disk Channels.
• In the System topic. select Action > Rescan Disk Channels.
3 Click Rescan.
NOTE: The reordering enclosure IDs action only applies to dual-controller mode. If only one controller is available, due to either
single-controller conguration, or controller failure, a manual rescan will not reorder the drive enclosure IDs.
Temperature sensors
Temperature sensors throughout the enclosure and its components monitor the thermal health of the storage system. Exceeding the limits
of critical values causes a notication to occur.
Host I/O
When troubleshooting disk drive and connectivity faults, stop I/O to the aected disk groups from all hosts as a data protection precaution.
As an additional data protection precaution, it is helpful to conduct regularly scheduled backups of your data. See Shutting down a
controller module.
Troubleshooting and problem solving
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