7-8
SPARC Enterprise M8000/M9000 Servers Service Manual • October 2012
7.2
Active Replacement and Hot Replacement
The active replacement procedure and hot replacement procedure are almost the same. This
section explains both procedures together. Each step that is different between these
procedures is distinguished by "Active replacement" or "Hot replacement" as a header. The
main difference between active replacement and hot replacement is as follows:
■
Active replacement: The CMU of an IOU is disconnected from or configured into a
domain by dynamic reconfiguration (DR).
■
Hot replacement: A domain must be stopped and restarted.
The procedure for active replacement and hot replacement is as follows.
1. Unlock and open a door of the server. (See
Caution –
Before touching an IOU or dummy (filler) unit, see
and be sure to wear the antistatic wrist strap. Failure to do so might
result in serious damage to operating domains.
2. Check whether the CMU that is connected to the IOU to be replaced (the target
CMU) is logically divided and what domains are affected by the replacement.
a. Log in to the XSCF from a terminal connected to the XSCF, and execute the
showfru
command to check whether the target CMU is logically divided.
b. If it is logically divided, execute the
showdcl
command to check whether the
target CMU and another CMU comprise a domain.
c. Execute the
showboards
command to check the use states of the devices and
resources in the CMU.
For details on how to log in to the XSCF and of commands, see the
SPARC Enterprise
M3000/M4000/M5000/M8000/M9000 Servers XSCF User’s Guide
. For details of
commands, see also the
SPARC Enterprise M3000/M4000/M5000/M8000/M9000 Servers
XSCF Reference Manual
, or the man page.
Summary of Contents for SPARC Enterprise M8000
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Page 27: ...Chapter 1 Safety and Tools 1 5 M9000 Server Front View ...
Page 29: ...Chapter 1 Safety and Tools 1 7 Power Supply Unit PSU ...
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Page 205: ...Chapter 7 I O Unit IOU Replacement 7 13 FIGURE 7 8 Removing the IOU Front of M9000 1 1 2 3 ...
Page 227: ...Chapter 8 FAN Unit Replacement 8 11 FIGURE 8 9 Removing the FAN Unit Rear of M8000 1 2 ...
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