Cisco Model D9500 Switched Digital Video Server (NTSC and PAL) 릴리즈 노트

4035984 Rev A

Downgrade Guidelines

Downgrade Guidelines

Database changes between USRM 1.7 and USRM 2.1.4 require that the connection
between the Primary and Standby Servers be removed during the downgrade. Also,
all sessions must be removed on RFGW-1 and GQI QAMs. Lastly, any QAM that
was created after the upgrade to USRM 2.1.4 will have to be recreated after the
downgrade (it will not be in the old persistdata files).

Downgrading from USRM 2.1.4 to USRM 1.7

Perform the following procedure to downgrade from USRM 2.1.4 to USRM 1.7.
1 Locate the servers’ previous USRM 1.7 database that was saved prior to the

upgrade and place them in the servers’ root directories, if they are not already
there.

Download the software to each server according to the directions in the

Installation and Upgrade Guidelines (on page 4).

3 Terminate the Standby Server.
4

On each Primary Server, release all sessions on all RFGW-1 and GQI QAMs.

Terminate the Primary Server.

6 Restore the USRM 1.7 persistdata files by opening an ssh session to the server

and typing the following from any directory:

usrmrestore /root/goqam.tar.bz2

7 Install the rpm on the Primary Server.
8 Initialize the Server as follows:

[usrm]# init 6

Start the Primary server using one of the following startup commands, a or b, as

appropriate:
a

[usrm]# ./usrm --auto -d

(for systems without DNCS)

[usrm]# ./usrm --supervised -d

(for systems with DNCS)

Note: In the examples above, there are two dashes before

supervised

and

auto

and one dash before

10 After all Primary servers in a cluster are back online, open an ssh session to the

standby server and install the rpm.

11 Start up the Standby Server using one of the following startup commands, a or b,

as appropriate:
a

[usrm]# ./usrm --auto -d

(for systems without DNCS)

[usrm]# ./usrm --standby -d

(for systems with DNCS)

Note: In the examples above, there are two dashes before

standby

and

auto

and

one dash before