Upgrading Cisco Unified CallManager Release 4.3(1)
Reverting to the Previous Configuration After an Upgrade Attempt
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Reverting to the Previous Configuration After an Upgrade Attempt

Table Of Contents

Reverting to the Previous Configuration After an Upgrade Attempt

Reconfiguring If You Did Not Remove a Drive Before the Upgrade

Reconfiguring If You Removed a Drive Before the Upgrade

Reverting the Hard Drive After Drive Mirroring Completes

Reverting Upgraded Cisco Unified Communications Applications After You Revert Cisco Unified CallManager


Reverting to the Previous Configuration After an Upgrade Attempt


In the unlikely event of an upgrade failure, or if you prefer an earlier version of Cisco Unified CallManager, perform the following steps to return the Cisco Unified Communications Applications Server to the configuration that was in effect prior to the upgrade.

Reconfiguring If You Did Not Remove a Drive Before the Upgrade

This procedure assumes that you have a good backup file on a tape device or network directory. Refer to Cisco IP Telephony Backup and Restore System (BARS) Administration Guide at http://www.cisco.com/univercd/cc/td/doc/product/voice/backup/index.htm.

Perform the following procedure:

Procedure


Step 1 Perform the following procedure, depending on whether you are reverting the publisher database server or the subscriber server(s):

Publisher Database Server

Step 2 Reinstall the operating system by using Cisco-provided operating system version 2000.2.4 or later.

You must perform this task by using the Cisco-provided disks that shipped with Cisco Unified CallManager server.

Step 3 Using the disks that originally shipped with Cisco Unified CallManager, reinstall Cisco Unified CallManager on your server.

Do not install or configure the backup utility that automatically displays during the installation.

Step 4 If you want to do so, install and configure the Cisco IP Telephony Backup and Restore System (BARS) .

Step 5 Perform the necessary upgrade(s) to match the most recent successful backup.


Note To revert to the pre-upgrade configuration, you must restore the version of Cisco Unified CallManager that was in effect when the last successful backup occurred.


Step 6 Restore the data.

Subscriber Server(s)

Step 7 Reinstall the operating system by using Cisco-provided operating system version 2000.2.4 or later.

You must perform this task by using the Cisco-provided disks that shipped with Cisco Unified CallManager server.

Step 8 Using the disks that originally shipped with Cisco Unified CallManager, reinstall a version of Cisco Unified CallManager on your server.

Do not install or configure the backup utility that automatically displays during the installation.

Step 9 If you want to do so, install and configure the Cisco IP Telephony Backup and Restore System (BARS).

You install and configure the backup utility on the subscriber when a Cisco IP telephony application, for example, CRS, exists on the subscriber server.


Reconfiguring If You Removed a Drive Before the Upgrade

This process may take from 15 minutes to 60 minutes, depending on the size of the drive.

Perform the following procedure:

Procedure


Step 1 Run the "CHKDSK /F" command on all logical drives:

The "Trace" drive - either E: or F: (for MCS-7845)

The D: drive

The C: drive - requires a reboot

a. If you are prompted to dismount the volume, enter N for no.

b. If you are prompted to schedule the volume to be checked the next time that the system restarts, enter Y for yes.

Step 2 Shut down the server.

Step 3 Remove the existing hard drive from Slot 0. Insert the hard drive that was removed prior to the upgrade into Slot 0.


Note On the Cisco MCS-7845 Unified CallManager appliance, perform this additional step. Remove the existing hard drive from Slot 2 and insert the hard drive that you removed prior to the upgrade into Slot 2.


Step 4 Slightly pull the drive in Slot 1; for the MCS-7845, also slightly pull the drive in Slot 3. Do not completely remove the drives from the server.

Step 5 Power on the system.


Note Step 5 does not apply for Cisco MCS-7835I-2.4 and MCS-7835I-3.0 Unified CallManager appliances.


Cisco MCS Unified CallManager Appliances

Step 6 Perform the following procedure for all Cisco 78xxH MCS or HP ProLiant Series Unified CallManager appliances where you removed a drive:

a. To enable interim recovery mode on the MCS-7830, MCS-7835, or MCS-7845, press F2.


Note The MCS-7835H-2.4 (or later) and MCS-7845H-2.4 (or later) default to F2, and the process automatically continues after a 10-second delay.


b. This step applies only for the MCS-7830, MCS-7835, or MCS-7845. When prompted, press F1 to continue.

c. Push the drive that was slightly pulled in Step 4 into Slot 1.

d. For the MCS-7830, MCS-7835, or MCS-7845, choose Start > Compaq Systems Tools > Compaq Array Configuration Utility or Start > HP Systems Tools > HP Array Configuration Utility.

e. Watch the status bar in the lower, right corner to determine when drive mirroring completes.

f. This step applies only for the MCS-7845. After the mirroring process completes in Slot 1, push the drive into Slot 3 that was pulled in Step 4.

g. Verify that the process completed successfully.

Cisco MCS-7835I-2.4 or MCS7835I-3.0 Unified CallManager appliances or Cisco Unified CallManager for the IBM xSeries Server

Step 7 Press F5.

Step 8 Press Ctrl + I.

Step 9 Using the arrow keys, choose Advanced functions.

Step 10 Using the arrow keys, choose Copy the configuration from drives to the controller.

Step 11 Press Y for Yes.

Processing begins.

Step 12 Press any key to continue.

Step 13 Using the arrow keys, press Exit.

Step 14 Press Ctrl + Alt + Del.

Step 15 Log in to the server by using the Administrator password.

Step 16 Push the drive that was slightly pulled in Step 4 into Slot 1.


Note Messages display about the drive state. Proceed with the process. Do not remove the drive.


This process takes about 35 to 40 minutes, depending on the server.

Step 17 Choose Start > Programs > ServeRaid Manager > ServeRaid Manager. You can view the progression of the drive mirroring.

Step 18 Verify that the process completed successfully.


Reverting the Hard Drive After Drive Mirroring Completes

If you want to revert a hard drive after drive mirroring occurs and you have made changes that affect the domain trust relationship, you must remove the server from the domain and then add it back to the domain. You must have rights to join the server to the domain before you perform this procedure.

Procedure


Step 1 Choose Start > Settings > Control Panel > System.

Step 2 Click the Network Identification tab.

Step 3 Click the Properties button.

Step 4 Click the Workgroup radio button and enter WRKGRP in the corresponding field.

Step 5 Click OK.

Step 6 When prompted to do so, reboot the server.

Step 7 Log in to the server by using the Administrator password.

Step 8 Perform Step 1 through Step 3.

Step 9 Click the Domain radio button and enter the domain name for the server.

Step 10 Click OK.

Step 11 When prompted to do so, reboot the server.


Reverting Upgraded Cisco Unified Communications Applications After You Revert Cisco Unified CallManager

After you revert the entire cluster to a previous version of Cisco Unified CallManager, you must revert integrated Cisco IP telephony applications. You must revert these integrated applications to the version that is compatible with the reverted Cisco Unified CallManager. To revert the application, perform the following procedure:

Procedure


Step 1 In the Cisco Unified CallManager Compatibility Matrix, identify the telephony product and compatible version that matches the cluster reversion. Go to http://www.cisco.com/univercd/cc/td/doc/product/voice/c_callmg/ccmcomp.htm to locate this document.

Step 2 From the application server or the client workstation, if applicable, browse into the reverted server that is running Cisco Unified CallManager Administration and log in with administrative privileges.


Tip To browse into the server, enter https://<CM-server-name>/CCMAdmin/main.asp, where <CM-server-name> equals the name of the server, in the Address bar in the web browser.


Step 3 From the Application menu, choose Install Plugins.

Step 4 Click the appropriate plug-in, as seen in the following list:

Cisco Unified CallManager Telephony Service Provider for Cisco IP SoftPhone

Cisco Unified CallManager JTAPI for any application that interfaces with Cisco Unified CallManager by using JTAPI.

Step 5 To complete the installation, follow the prompts in the window.

Step 6 Perform this procedure on all servers where the application is installed.