Cisco Headend System Release 2.7 發佈版本通知
Detach the Disk Mirrors
4019475 Rev D
67
Detach the Disk Mirrors
Introduction
In this procedure, you will detach the disk mirrors of the Enterprise E450 or Sun Fire
V880 DNCS. If you fail to detach the disk mirrors, you must restore from a tape
backup. Detaching the mirrors allows you the option of recovering quickly in the
event of a failed upgrade by booting from the standby drives.
V880 DNCS. If you fail to detach the disk mirrors, you must restore from a tape
backup. Detaching the mirrors allows you the option of recovering quickly in the
event of a failed upgrade by booting from the standby drives.
Note: You should still be logged on to an xterm window on the DNCS as root user.
Detaching the Disk Mirrors
Complete the following steps to detach the disk mirrors before the upgrade to
SR 2.7/3.7/4.2 SP2.
1 Insert the CD labeled DBDS Maintenance CD into the CD drive of the DNCS.
SR 2.7/3.7/4.2 SP2.
1 Insert the CD labeled DBDS Maintenance CD into the CD drive of the DNCS.
Note: If a File Manager window opens on the DNCS, close the window.
2 Type df -n and then press Enter. A list of the mounted filesystems appears.
Note: The presence of /cdrom in the output confirms that the system correctly
mounted the CD.
mounted the CD.
3 Type /cdrom/cdrom0/s3/backup_restore/mirrState -d and then press Enter. The
system displays the following message:
WARNING!!
Proceeding beyond this point will DETACH all d7xx submirrors.
Are you certain you want to proceed?
WARNING!!
Proceeding beyond this point will DETACH all d7xx submirrors.
Are you certain you want to proceed?
4 Type y and then press Enter. The system disables the disk mirroring functions on
the DNCS.
Note: You may see a message similar to Warning: d5xx metadevice is setup as a
one way mirror. This message is normal.
Note: You may see a message similar to Warning: d5xx metadevice is setup as a
one way mirror. This message is normal.