NEC Express 5800 User Manual page 178

Hardware
The following table shows replacement conditions and the accompanying tasks.
Replacement conditions and
required additional tasks
Online Replacement
Offline Replacement
Pulling out or inserting
the server from/into the rack
The following describes how to install/uninstall CRUs.
The diagnostic test is required to check operations following installation when CRUs are
installed/uninstalled. Refer to "System Diagnostics" in "Operation and Maintenance" for how
to perform the diagnostic test.Note that the test is executable only when the system is offline.
CRU is an abbreviation of (Customer Replacement Unit)
HDD PSU
Possible *1 Possible *2
Possible Possible
Not
Not Required
Required
*1: When RAID system is configured (other than RAID 0)
*2: When power redundant configuration is built
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DVD FAN
Not
Possible
possible
Possible Possible
Not
Required Not Required
Required
Power
Cable
Possible *2
Possible