Dot Hill Systems II 200 FC service manual

■SANscape CLI event log

■For expansion units, the RAID firmware event log

For more information about replacing the chassis, I/O module, or controller, refer to the SANnet II Family FRU Installation Guide.

Caution – When you rotate or replace drives, make sure that:

-All I/O is stopped.

-The Periodic Drive Check Time setting in the firmware application is set to disabled (this is the default setting). This prevents automatic drive rebuild, which is not recommended for live systems or troubleshooting.

To disable the Periodic Drive Check Time:

1.From the Main Menu, choose view and edit Configuration parameters →Drive-side SCSI Parameters →Periodic Drive Check Time.

A list of Periodic Drive Check Time intervals is displayed.

2.Select Disable.

A confirmation message is displayed.

3.Select Yes to confirm.

Caution – Whenever you are troubleshooting your array or replacing components, there is an increased possibility of data loss. To prevent any possible data loss, back up user data to another storage device prior to replacing a disk drive or any other component.

Before you begin troubleshooting a JBOD or expansion unit, check the cables that connect the host to the JBOD or expansion unit. Look for bent pins, loose wires, loose cable shields, loose cable casing, and any FC cables with 90 degree or more bends in them. If you find any of these conditions, replace the cable.

The Figure B-4flowchart provides troubleshooting procedures specifically for JBODs and expansion units. For additional troubleshooting flowcharts, see “Power Supply and Fan Module” on page 8-11and “Drive LEDs” on page 8-13.

B-14SANnet II 200 FC, SATA, and SATA SE Array Installation, Operation, and Service Manual • March 2005