Cisco ASR 14000 Series Management Command Reference page 18

mirror
C i s c o C o n f i d e n t i a l - B e t a R e v i e w R 3 . 7. 1
mirror
To configure disk mirroring on a node, use the mirror command in global configuration mode. To
disable disk mirroring, use the no form of this command.
Syntax Description
primary-device:
secondary-device:
preconfigure
node-id
Defaults No default behavior or values
Command Modes Global configuration
Command History Release
Release 3.7.1
Usage Guidelines To use this command, you must be in a user group associated with a task group that includes the proper
task IDs.
The mirror command replicates all critical data contained in the primary partition of the primary boot
device, onto a second storage device on the same RP. Therefore, if the primary boot device fails,
applications continue to be serviced transparently by the secondary device, without having to switch
control to a standby RP.
Before the mirror command can be used, the secondary storage device must be partitioned using the
format command. If the primary boot device is not partitioned, once mirroring is enabled and all data
on the primary boot device is replicated to the secondary device, the primary boot device is partitioned
automatically. This guarantees that only critical data on the primary boot device is mirrored to the
secondary device. Noncritical data, such as logging data, should not be mirrored and should, therefore,
be saved to the secondary partition on the storage device.
To temporarily suspend disk mirroring without changing the configuration, use the mirror pause
command in EXEC mode.
Cisco ASR 14000 Series Router System Management Command Reference
SMR-14
mirror location [preconfigure] node-id primary-device:secondary-device:
no mirror location node-id
Modification
This command was introduced on the Cisco ASR 14000 Series Router.
Specifies the primary boot device used to store installation packages
and configuration files. Supported devices are disk0: and disk1: (if
installed).
Storage device on the same RP as the primary-device, to where critical
data is replicated.
• Supported devices are the same as for primary-device:, but
secondary-device: must be different than the primary-device:.
Enables you to specify a node that is not yet installed.
Node in a multishelf system. It can be a node that is not yet installed
if the keyword preconfigure is used.
Boot Commands on Cisco IOS XR Software
OL-17231-01