Table 51. Symptom-to-FRU index
Problem |
|
|
|
indicator | Component | Possible cause | Possible solutions |
|
|
|
|
Amber LED is lit | Drive CRU | Drive failure | Replace the failed drive. |
| (Drive Fault |
| Note: The amber LED on the |
| LED) |
| drive is also lit if the drive slot |
| Note: The |
| has a blank drive tray inserted. |
| green Drive |
|
|
| Drive uncertified | Verify the drive option and FRU | |
| Activity LED | ||
|
| part number to verify that it is | |
| might also be |
| |
|
| supported by the DS4700 | |
| lit. |
| |
|
| Express Storage Subsystem. (For | |
|
|
| |
|
|
| FRU part numbers, see Table 52 |
|
|
| on page 189.) |
|
|
|
|
| RAID controller | RAID controller | Replace the RAID controller. See |
| (Fault LED) | failure | your controller documentation for |
| Note: |
| more information. See Chapter 5, |
| Controller |
| “Replacing components,” on page |
| Service Action |
| 145 for more information. |
| Allowed LED |
|
|
| Controller was | Use the menu function in the | |
| will also be lit. | ||
| placed offline by a | DS4700 Express Subsystem | |
|
| ||
|
| user or the other | Management window to place the |
|
| controller. | controller back online. If the |
|
|
| controller continues going to an |
|
|
| offline state after being placed |
|
|
| online, replace the RAID |
|
|
| controller. |
|
|
|
|
|
| Unsupported | Use the Storage Manager Client |
|
| controller type. For | Subsystem Management window |
|
| example, a DS4200 | and Recovery Guru to verify that |
|
| Express FRU is | the correct controller FRU is |
|
| inserted into a | used. Replace with the correct |
|
| DS4700 Express | DS4700 Express controller FRU. |
|
| chassis. |
|
|
|
|
|
| RAID controller | No incoming signal | Reconnect the SFP modules and |
| (Port Bypass | detected | the |
| LED) |
| the input and output SFP using |
|
|
| the path failure determination |
|
|
| instruction in the DS4000 |
|
|
| Problem Determination Guide |
|
|
| and the FC loopback and |
|
|
| |
|
|
| Replace either input or output |
|
|
| SFP modules or fibre channel |
|
|
| cables as necessary. |
|
|
|
|
|
| Incorrect enclosure | When connecting storage |
|
| speed setting | expansion enclosures to the |
|
|
| existing operating redundant |
|
|
| drive loop with a different speed |
|
|
| setting, the port goes into bypass |
|
|
| mode because mixing different |
|
|
| speed enclosures within the |
|
|
| same redundant drive |
|
|
| loop/channel is not supported. |
|
|
|
|
|
| RAID controller | If the RAID controller Fault LED |
|
| failure | is lit, also replace the RAID |
|
|
| controller. |
|
|
|
|
184IBM System Storage DS4700 Express Storage Subsystem: Installation, User’s and Maintenance Guide
