Примечания к выпуску для Cisco Headend System Release 2.7
Appendix A
System Release Rollback Procedures
124
4019475 Rev D
Roll Back the Enterprise 450 or Sun Fire V880
DNCS
DNCS
Introduction
If your upgrade is unsuccessful, you may need to use the procedures in this section
to restore your system to its condition prior to the upgrade and then to reattach disk
mirroring on the DNCS.
to restore your system to its condition prior to the upgrade and then to reattach disk
mirroring on the DNCS.
Important: Be sure to notify Cisco Services before concluding that an upgrade has
failed and before following any of the procedures in this section. In many cases,
Cisco Services can help you easily resolve the problems related to the failed upgrade.
In addition, the procedures in this section apply only if you have not yet completed
the Re-Enable the Disk Mirroring Function. If you have already enabled disk-
mirroring on the DNCS, you will have to restore your system using your latest file
system and database backup tapes.
failed and before following any of the procedures in this section. In many cases,
Cisco Services can help you easily resolve the problems related to the failed upgrade.
In addition, the procedures in this section apply only if you have not yet completed
the Re-Enable the Disk Mirroring Function. If you have already enabled disk-
mirroring on the DNCS, you will have to restore your system using your latest file
system and database backup tapes.
Rolling Back the DNCS
Follow these instructions to roll back the DNCS from an unsuccessful upgrade to
your previous DNCS release.
your previous DNCS release.
Note: You need to be at the CDE Login window to begin this procedure. If you are
unable to get to the CDE Login window, call Cisco Services for assistance.
1 In Stop System Components (on page 61), use these procedures, if necessary.
unable to get to the CDE Login window, call Cisco Services for assistance.
1 In Stop System Components (on page 61), use these procedures, if necessary.
2 From an xterm window on the Application Server, type shutdown -g0 -y -i0
and then press Enter. The system halts all processes on the Application Server
and an ok prompt appears.
and an ok prompt appears.
3 Insert the CD labeled DBDS Maintenance CD into the CD drive of the DNCS.
4 Log in to the DNCS as root user.
5 Open an xterm window on the DNCS.
4 Log in to the DNCS as root user.
5 Open an xterm window on the DNCS.
Note: You will have root permissions in the xterm window.
6 Type /cdrom/cdrom0/s3/backup_restore/make_d700_bootable and then press
Enter. A message appears that seeks confirmation to make bootable the disk
device that contains the old software.
device that contains the old software.
7 Type y and then press Enter. A message appears that seeks permission to reboot
the server.
8 Type y and then press Enter. The DNCS reboots.