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Figure 79. Replacing an SFP module
10. Check the Bypass and Fault LEDs for the new SFP module.
11. Based on the status of the Bypass and Fault LEDs, choose one of the
12. Is the problem corrected?
13. Complete any remaining Recovery Guru procedures, if needed.
14. Use the DS4000 Storage Manager Subsystem Management window to check
15. Remove the antistatic protection.
16. Does any component have a Needs Attention status?
17. Use the DS4000 Storage Manager client software to print a new storage
Replacing a midplane
Perform the following steps to replace a midplane:
9. Reconnect the interface cable.
ESM Fault Light
ESM
Fiber-optic cable
(Host interface cable)
following steps:
v Bypass LED or Fault LED is on - Reinstall the SFP module and cables,
and verify that the SFP module and cables are securely connected. Use the
fibre channel loopback and the LC-LC connector to perform path diagnostics
to ensure that the FC cable is good and the SFP on the other end of the
fibre channel connection is working properly. When finished, go to step 12.
v Bypass LED and Fault LED are off - Go to step 12.
v Yes - Go to step 13.
v No - Contact IBM Support.
the status the status of all components in the storage subsystem.
v Yes - Select the Recovery Guru toolbar button in the Subsystem
Management window, and complete the recovery procedure. If the problem
persists, contact IBM Support.
v No - Go to step 17.
subsystem profile.
1. Complete the power-off sequence described in "Turning off the storage
subsystem" on page 94 ensuring that the DS4000 storage subsystem is turned
off before any attached storage expansion enclosures.
2. Remove the power cords from the power supply and fan units of the DS4200
Express Storage Subsystem.
SFP
Transceiver
Chapter 5. Replacing components
131
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