10–2
Replacing a Host I/O Board or Host I/O Module
Hitachi Unified Storage Hardware Service Guide
Precautions when replacing a Host I/O Board or Module
Observe the following guidelines when replacing a Host I/O Board or Host
I/O Module.
• Collect simple trace and port information (see
• Confirm that the red STATUS LED on the Host I/O Board or Host I/O
Module is ON. If it is not ON, visit the HDS Support Portal at
• Complete the replacement within 10 minutes. Otherwise, an abnormal
rise in temperature can power off the storage system.
• Remove all interface cables connected to the Host I/O Board or Host
I/O Module to be replaced.
NOTE: If the cable cannot be removed easily, do not pull it by force.
Otherwise, you can damage the cable. When removing Fibre Channel
Interface cables, pull out the cables completely from the host connectors.
If the Fibre Channel Interface cables are inserted halfway into the host
connectors, the controller continues to detect Fibre Channel failures and
I/O processing can deteriorate.
Summary of Contents for CBL
Page 20: ...xx Hitachi Unified Storage Hardware Service Guide Labels on the CBXSS ...
Page 30: ...xxx Hitachi Unified Storage Hardware Service Guide CBL CBLE CBLD DBS DBSD DBL DBLD DBF ...
Page 39: ...xxxix Hitachi Unified Storage Hardware Service Guide Out ...
Page 40: ...xl Hitachi Unified Storage Hardware Service Guide ...
Page 152: ...5 8 Replacing a cache backup battery Hitachi Unified Storage Hardware Service Guide ...
Page 156: ...6 4 Replacing a Fan Module Hitachi Unified Storage Hardware Service Guide ...
Page 180: ...8 16 Adding and replacing controllers Hitachi Unified Storage Hardware Service Guide ...
Page 188: ...9 8 Replacing cache memory Hitachi Unified Storage Hardware Service Guide ...
Page 200: ...11 6 Replacing the Host connector Hitachi Unified Storage Hardware Service Guide ...
Page 204: ...12 4 Replacing the Drive I O Module Hitachi Unified Storage Hardware Service Guide ...
Page 212: ...14 4 Replacing the SAS ENC cable Hitachi Unified Storage Hardware Service Guide ...
Page 274: ...17 14 Troubleshooting Hitachi Unified Storage Hardware Service Guide ...
Page 291: ...1 Hitachi Unified Storage Hardware Service Guide ...