Owners Manual

CLI port connections
ME4 Series Storage System controllers feature a CLI port employing a 3.5mm stereo plug and a mini-USB Type B form factor.
For more information about connecting a serial cable, see Connecting to the CLI port using a serial cable on page 153.
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 notification to occur.
Host I/O
When troubleshooting disk drive and connectivity faults, stop I/O to the affected 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 attached hosts on page 45.
42 Troubleshooting and problem solving