Setup guide

5-8
Cisco 6400 Software Setup Guide
OL-1183-04
Chapter5 Redundancy and SONET APS Configuration
NSP Redundancy
Verifying that Disk Mirroring is Enabled
To verify that disk mirroring is enabled, complete one or both of the following steps:
Step 1 Use the show redundancy sync-status EXEC command to check that disk mirroring is enabled:
Switch# show redundancy sync-status
Disk Mirror is enabled in configuration:proper sync
(Mirror threshold is 0 MB:smaller files will be copied blindly)
Peer Secondary NSP is present
disk1 or sec-disk1 is wrong or missing
mir-disk0 (disk0 -> sec-disk0):in sync.
mir-disk1 (disk1 -> sec-disk1):out of sync.
Switch#
Step 2 Use the dir command to verify matching file names and file sizes on the mirrored PCMCIA disks.
Switch# dir disk0:
Switch# dir sec-disk0:
Switch# dir disk1:
Switch# dir sec-disk1:
Specifying the File Size Threshold
By default, when performing disk synchronization (either through disk mirroring or user initiation), the
system compares files between the PCMCIA disks. The system does not copy files with matching file
names, sizes, and time stamps. You can, however specify a file size threshold below which files are
copied without comparison.
To specify the file size threshold, complete the following steps beginning in global configuration mode:
Example—File Size Threshold
In the following example, PCMCIA disk mirroring is enabled with a specified file size threshold of
2MB:
!
redundancy
main-cpu
auto-sync standard
mirror threshold 2
!
Command Purpose
Step1
Switch(config)# redundancy
Enters redundancy configuration mode.
Step2
Switch(config-r)# main-cpu
Enters main-cpu configuration mode.
Step3
Switch(config-r-mc)# mirror threshold size
Specifies the file size threshold below which files
are copied without comparison.