Cisco Cisco C880 M4 Server
CHAPTER 6 Error Notification and Maintenance (Contents, Methods, and Procedures)
6.2 Troubleshooting
6.2 Troubleshooting
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Mode
Meaning
Cold System Maintenance (breaker on)
[Stopped for work (standby)]
[Stopped for work (standby)]
For maintenance work performed while the system
power is off and the AC power supply is on
power is off and the AC power supply is on
Cold System Maintenance (breaker off)
[Stopped for work (AC off)]
[Stopped for work (AC off)]
For maintenance work performed while the system
power is off and the AC power supply is off
power is off and the AC power supply is off
TABLE 6.2 Maintenance mode functions
Item
Operation
mode
Maintenance mode
Hot System
Cold
System
(breaker
on)
Cold
System
(breaker
off)
Power supply
operation
operation
Administrator
Permitted
Permitted
Suppressed
Suppressed
Field
engineer
engineer
Suppressed
Suppressed
Permitted
Permitted
Wake On LAN
(WOL)
(WOL)
Permitted
Permitted
Suppressed
Suppressed
Calendar function
Permitted
Permitted
Suppressed
Suppressed
OS boot
Permitted
Permitted
Suppressed
Stops at
BIOS
Stops at
BIOS
Suppressed
Stops at
BIOS
Stops at
BIOS
6.1.4 Maintenance of the MMB
If the server with single MMB fails in MMB, take actions below.
1. Shut down the operating system (LAN) from a remote terminal. (*1)
2. Turn off the chassis AC power.
3. Replace the MMB.
4. Turn on the chassis AC power.
(*1) If you use only port of MMB to login the operating system, you cannot login to the operating system.
6.2
Troubleshooting
This section describes how to troubleshoot system problems.
6.2.1 Troubleshooting overview
The following shows the basic procedure for troubleshooting.