Symptom-To-Fru Index; Symptom-To-Fru Index For Type 3526 Fibre Channel Raid Controller - IBM TotalStorage DS4000 Hardware Maintenance Manual

Symptom-to-FRU index

The Symptom-to-FRU index (Table 17) lists symptoms and the possible causes. The
most likely cause is listed first.
The PD maps found in the IBM TotalStorage DS4000 Problem Determination Guide
also provide you with additional diagnostic aids.
Notes:
1. Always start with the "General checkout" on page 21. For IBM devices not
2. Do not look directly into any fiber cable or GBIC optical output. Read "Notices"
Table 17. Symptom-to-FRU index for Type 3526 fibre channel RAID controller
Problem
Controller LED (front cover) is on.
Software issued a controller error message.
Software errors occur when attempting to access
controllers or drives.
Fan LED (front cover) is on.
Controller and Fan fault LEDs (front cover) are on.
Fault-A or Fault-B LED (battery CRU) is on.
Note: The Fault-A or Fault-B LED will be on during
battery charging.
Full Charge-A or Full Charge-B LED (battery CRU)
is off.
No power to controller (all power LEDs off).
32
IBM TotalStorage DS4000: Hardware Maintenance Manual
supported by this index, see the manual for that device.
on page 137. To view an optical signal, use a mirror to view the reflected light.
Action/FRU
1. Reseat Controller CRU
2. Place Controller online using DS4000 Storage Manager
GUI
3. If in passive mode, check Fibre path/GBIC
4. Controller CRU
1. Check Controller Fan
2. Controller CRU
1. Check appropriate software and documentation to make
sure the system is set up correctly and the proper
command was run.
2. Power to the Controller
3. Interface cables
4. ID settings
5. Controller
6. Drive
7. Controller backpanel
1. Power supply fan CRU
2. Controller fan CRU
1. Check both Fan and Controller CRUs for fault LED and
replace faulty CRU.
1. Battery CRU
1. Power on Controller and allow batteries to charge for 24
hours until the Full Charge LEDs are on.
2. Battery CRU
3. Both power supplies
1. Check power switches and power cords.
2. Power supplies