
3-9
Cisco UCS C250 Server Installation and Service Guide
OL-20888-02
Chapter 3 Maintaining the Server
Preparing for Component Installation
Shutting Down and Powering Off the Server
Tip
If you have ordered a server with power supply redundancy (at least two power supplies), you do not
have to power off the server to replace a power supply because they are redundant and hot-pluggable.
The server hard drives and fan modules are also hot-pluggable.
The server can run in two power modes:
•
Main power mode—Power is supplied to all server components and any operating system on your
hard drives can run.
•
Standby power mode—Power is supplied only to the service processor and the cooling fans and it
is safe to power off the server from this mode.
You can invoke a graceful shutdown or an emergency shutdown (hard shutdown) by using either of the
following methods:
•
Use the CIMC management interface. See either the
Cisco UCS C-Series Rack-Mount Server
Configuration Guide
or the
Cisco UCS C-Series Rack-Mount Server CLI Configuration Guide
.
•
Use the
Power
button on the server front panel. To use the
Power
button, follow these steps:
Step 1
Check the color of the Power Status LED (see the
“Front Panel LEDs” section on page 3-2
).
•
Green indicates that the server is in main power mode and must be shut down before it can be safely
powered off. Go to
Step 2
.
•
Amber indicates that the server is already in standby mode and can be safely powered off. Go to
Step 3
.
Step 2
Invoke either a graceful shutdown or a hard shutdown:
Caution
To avoid data loss or damage to your operating system, you should always invoke a graceful shutdown
of the operating system.
•
Graceful shutdown—Press and release the
Power
button. The operating system will perform a
graceful shutdown and the server goes to standby mode, which is indicated by an amber Power
Status LED.
•
Emergency shutdown—Press and hold the
Power
button for 4 seconds to force the main power off
and immediately enter standby mode.
Step 3
Disconnect the power cords from the power supplies in your server to completely power off the server.
Содержание UCS C250
Страница 6: ...Contents vi Cisco UCS C250 Server Installation and Service Guide OL 20888 02 ...
Страница 12: ...xii Cisco UCS C250 Server Installation and Service Guide OL 20888 02 Preface ...
Страница 14: ...xiv Cisco UCS C250 Server Installation and Service Guide OL 20888 02 Preface ...
Страница 18: ...1 4 Cisco UCS C250 Server Installation and Service Guide OL 20888 02 Chapter 1 Overview ...