Fujitsu M10-4 Service Manual page 162

Inactive/hot replacement (for an internal disk or PCIe card)
Inactive/hot replacement can be performed on an internal disk and a PCIe card.
Perform the following procedure to replace the unit.
Figure 7-8 Inactive/hot replacement flow (for an internal disk or PCIe card)
1. Open rack door
2. Switch mode switch
3. Check operating condition of system and I/O
device usage status
4. Power off chassis requiring maintenance
5. Lower cable support for maintenance on
PCIe card
6. Replace faulty FRU
7. Secure cable support after maintenance on
PCIe card
8. Diagnose replacement FRU
9. Confirm that there is no problem with
replacement FRU
10. Return mode switch to original mode
11. Power on chassis requiring maintenance
12. Close rack door
148 Fujitsu M10-4/Fujitsu M10-4S/SPARC M10-4/SPARC M10-4S Service Manual ･ June 2023
Maintenance complete