How To Enable Disk Mirroring; Enabling Disk Mirroring - Cisco ASR 9000 Series User Configuration Manual

Configuring Disk Mirroring
Size of Disk
more than 3 GB

How to Enable Disk Mirroring

The tasks in this section describe how to enable and manage disk mirroring.

Enabling Disk Mirroring

Complete the following instructions to enable disk mirroring. After disk mirroring is configured, if there is a
fault on the primary boot drive or it cannot be accessed for any reason, control is automatically transferred to
the secondary storage device.
SUMMARY STEPS
1. format secondary-device partition [ location node-id ]
2. Remove any noncritical data from the primary boot device.
3. configure
4. mirror location node-id Primary-device Secondary-device
5. commit
6. show mirror [ location node-id ]
7. mirror verify location node-id
DETAILED STEPS
Command or Action
Step 1 format secondary-device partition [ location
node-id ]
Example:
RP/0/RSP0/CPU0:router# format disk1:
partition
Step 2 Remove any noncritical data from the primary boot
device.
Step 3
configure
Step 4
mirror location node-id Primary-device
Secondary-device
Example:
Cisco ASR 9000 Series Aggregation Services Router System Management Configuration Guide, Release 5.1.x
Primary Partition Percentage
50%
Purpose
Partitions the secondary storage device into two partitions.
• If the device is already partitioned, you do not need to
perform this step.
The primary boot device should contain installation packages and
configuration files only. Log files can be copied to the "a" partition
of the secondary device, for example disk1a: .
Enables disk mirroring of the primary-device to the
secondary-device .
If the primary boot device is not partitioned, the following occurs:
How to Enable Disk Mirroring
Secondary Partition Percentage
50%
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