Cisco Headend System Release 2.5 Release Notes
Chapter 4 Post-Upgrade Procedures
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4000916 Rev C
Re-Enable the Disk Mirroring Function
Introduction
In Detach Disk Mirroring on the DNCS (on page 35), you detached the mirroring
function of the Enterprise 450 or Sun Fire V880 DNCS. If your system upgrade
appears successful, wait a day to verify that the Enterprise 450 or Sun Fire V880
DNCS functions properly with the new software. Then, re-enable the disk mirroring
function of the DNCS so that the DNCS can continue storing identical information
across several sets of hard drives.
function of the Enterprise 450 or Sun Fire V880 DNCS. If your system upgrade
appears successful, wait a day to verify that the Enterprise 450 or Sun Fire V880
DNCS functions properly with the new software. Then, re-enable the disk mirroring
function of the DNCS so that the DNCS can continue storing identical information
across several sets of hard drives.
Important! If your upgrade is unsuccessful, refer to System Release Rollback
Procedures (on page 79).
Procedures (on page 79).
Re-Enabling the Disk Mirroring Function
Follow these instructions to re-enable the disk mirroring function of the Enterprise
450 or Sun Fire V880 DNCS.
450 or Sun Fire V880 DNCS.
Important! Before following these instructions, wait at least 24 hours after the
upgrade to verify that your DNCS operates properly with the new software.
1 From an xterm window on the DNCS, type su and then press Enter. The
upgrade to verify that your DNCS operates properly with the new software.
1 From an xterm window on the DNCS, type su and then press Enter. The
password prompt appears.
2 Type the root password and then press Enter. You have root permissions in the
xterm window.
3 Insert the DBDS Maintenance CD into the cdrom drive of the DNCS.
4 Type /cdrom/cdrom0/s3/backup_restore/mirrState -a and then press Enter. The
4 Type /cdrom/cdrom0/s3/backup_restore/mirrState -a and then press Enter. The
system displays the following message:
WARNING!!
Proceeding beyond this point will ATTACH all Controller 2 submirrors.
Are you certain you want to proceed?
WARNING!!
Proceeding beyond this point will ATTACH all Controller 2 submirrors.
Are you certain you want to proceed?
5 Type y and then press Enter. The system enables the disk mirroring functions on
the DNCS.
Note: Depending upon your system configuration, it may take up to an hour to
mirror all of the data on the mirrored disks.
Note: Depending upon your system configuration, it may take up to an hour to
mirror all of the data on the mirrored disks.