Replacing Scsi Cables; Replacing Fibre Optic Cables - Sun Microsystems Sun StorEdge A3500 Manual

6.1

Replacing SCSI Cables

Before replacing SCSI cables, check and make sure that all the SCSI cables are
securely fastened (with screws or latches) to the controller module, drive trays, and
host system(s). A visual check may identify connection problems.
Check the entire length of the SCSI cables for cracks, splits, or other damage.
1. Stop all I/O activity to the appropriate devices (host, controller, or drive tray).
2. Disconnect the defective cable and replace it with a new cable.
3. Restart I/O activity
4. Check the LEDs of both controllers for faults.
See Section 4.1.2 "Checking the Controller LEDs" on page 4-4.
5. Use the RAID Manager software to check the overall system status.
If you still cannot find the problem, it may indicate a failure of the controller back
panel. You may have to replace the controller card cage, which includes the back
panel. See Section 6.3.3 "Replacing a Controller Card Cage (Service Technician
Only)" on page 6-10.
6.2

Replacing Fibre Optic Cables

Before replacing fibre optic cables, make sure that the fibre optic cables are securely
connected between the controller module and host system(s). A visual check may
identify connection problems.
1. Stop all I/O activity to the appropriate devices (host, controller, or drive tray).
2. Refer to Section 2.6 "Connecting the Fibre Optic Cables" on page 2-15 for detailed
instructions on how to connect the fibre optic cables.
3. Remove the front panel from the controller module.
See Section 5.1.1 "Removing the Front Panel" on page 5-2.
4. Remove and disconnect the defective cable (
6-2 Sun StorEdge A3500/A3500FC Controller Module Guide • August 1999
).
FIGURE 6-1