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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
information on page
•
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
portal.hds.com.
•
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.
10–2
3-13).
Replacing a Host I/O Board or Host I/O Module
Hitachi Unified Storage Hardware Service Guide
Collecting trace
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