22
Table 8
Command output
Field Description
Mem
Memory usage information.
Total
Total size of the physical memory space that can be
allocated.
Used Used
physical
memory.
Free
Free physical memory.
Shared
Physical memory shared by processes.
Buffers
Physical memory used for buffers.
Cached
Used physical memory for cache.
FreeRatio
Free memory ratio.
–/+ Buffers/Cache
•
-/+ Buffers/Cache:used = Mem:Used – Mem:Buffers –
Mem:Cached, which indicates the physical memory
used by applications.
•
-/+ Buffers/Cache:free = Mem:Free + Mem:B
Mem:Cached, which indicates the physical memory
available for applications.
Swap Swap
memory.
Rebooting the device
CAUTION:
•
To avoid configuration loss, use the
save
command to save the running configuration before a reboot.
For more information about the
save
command, see
H3C WX2540H Access Controller Fundamentals
Command Reference.
•
Use the
display startup
and
display boot-loader
commands to make sure you have specified the correct
next-startup configuration files and startup software images. If a startup configuration file or software
image problem exists, the device cannot start up correctly. For more information about the two
display
commands, see
H3C WX2540H Access Controller Fundamentals Command Reference.
The following methods are available for rebooting the device:
•
Reboot the device at the CLI. Using the CLI, you can reboot the device from a remote host.
{
Reboot the device immediately by using the
reboot
command.
{
Schedule a reboot at the CLI so the device automatically reboots at the specified time or after
the specified period of time.
•
Power off and then power on the device. This method might cause data loss. It is the least-preferred
method.
The device does not reboot while it is performing file operations.
