Management Server Rehosting

Rehosting is the process of relocating an installed and configured N1 System Manager management server to a new network. The new network may have a completely different configuration, in which case the management server's network settings must be changed.

Conditions in which you need to rehost the management server are as follows:

• The N1 System Manager is installed and configured on a management server in a test environment, and the management server is now ready to be moved to the production environment.

• The N1 System Manager is installed and configured on a management server in a production environment, and is being relocated to a new network.

Rehosting the N1 System Manager management server is comprised of three major tasks:

• Disabling N1 System Manager start on reboot

• Reconfiguring operating system Files

• Reconfiguring the management server

N1 System Manager 1.3 does not support managed server rehosting.

Disabling N1 System Manager Start on Reboot

You must disable the N1 System Manager Start on Reboot feature before you rehost your management server.

If you change the hostname or IP address of the management server and then reboot the server, and N1 System Manager is configured to start at boot, then N1 System Manager could start with an invalid hostname or IP address or hostname.

1. Typeps -ef | grep [Nn]1 to display the N1 System Manager processes that might be running

2. Type kill -9 PID where PID is the process ID of the N1 System Manager process

The following task must be performed before you make any rehosting changes to the management server.

To Disable N1 System Manager Start on Reboot

Steps

1. Log in as root on the management server.

2. Stop N1 System Manager.

   • On a Solaris management server, type svcadm disable -s n1sm.

   • On a Linux management server, type /etc/init.d/n1sminit stop. Wait for all process to stop.

   Wait for all process to stop, then type ps -ef | grep [Nn]1 to display any N1 System Manager processes that might be running.

   To stop any remaining N1 System Manager processes, type kill -9 PID where PID is the process ID of the N1 System Manager process.

3. Type n1smconfig to run the configuration process.

   Step through the configuration process and accept the displayed values. Do not change any value except when asked whether to Enable N1SM to start at each boot.

4. When asked Enable N1SM to start at each boot? (n/[y]), type n.

   Step through the rest of the configuration process and accept the displayed values. Type n when asked whether to restart N1SM.

5. Ensure all N1 System Manager process have stopped as described in Step 2.

Next Steps

Reconfigure the management server system files as described in the next section.

Reconfiguring Operating System Files

This section provides the procedures for reconfiguring the operating system files. This must be done before you reconfigure the N1 System Manager.

To Reconfigure Solaris Operating System Files for Rehosting

Before You Begin

Ensure that the N1 System Manager Start on Reboot feature has been disabled as described in Disabling N1 System Manager Start on Reboot.

Steps

1. Log in as root on the management server.

2. Edit the file /etc/hosts and change the displayed hostname and IP address to the new hostname and IP address.

3. Edit the file /etc/nodename and change the displayed hostname to the new hostname.

4. Edit the /etc/hostname.port type where port type is the name of the Ethernet port type.

   The port type name is dependent on the underlying hardware, for example /etc/hostname.bge0 or /etc/hostname.hme0.

   Change the displayed hostname to the new hostname.

5. Power down the management server.

6. Connect the management server to the new network.

7. Reboot the management server.

   When the management server has completed rebooting, ensure that no N1 System Manager processes are running.

Next Steps

Reconfigure the N1 System Manager system files as described in Reconfiguring the Management Server.

To Reconfigure Linux Operating System Files for Rehosting

Before You Begin

Ensure that the N1 System Manager Start on Reboot feature has been disabled as described in Disabling N1 System Manager Start on Reboot.

Steps

1. Log in as root on the management server.

2. Edit the file /etc/hosts and change the displayed hostname and IP address to the new hostname and IP address.

3. Edit the file /etc/sysconfig/network and change the displayed hostname to the new hostname.

4. Edit each /etc/sysconfig/network-scripts/ifcfg-ethx where ethx is the name of the Ethernet port type.

   For example /etc/sysconfig/network-scripts/ifcfg-eth0 and /etc/sysconfig/network-scripts/ifcfg-eth1.

   Change the displayed IP address to the new IP address. If your management server uses separate Ethernet ports for the management and provisioning networks, ensure that you specify the correct IP address to each port.

5. Power down the management server.

6. Connect the management server to the new network.

7. Reboot the management server.

   When the management server has completed rebooting, ensure that no N1 System Manager processes are running.

Next Steps

Reconfigure the N1 System Manager system files as described in the next section.

Reconfiguring the Management Server

This section provides the procedure for reconfiguring N1 System Manager on the management server.

To Reconfigure the Management Server For Rehosting

Before You Begin

Operating system files must be reconfigured for rehosting as described in Reconfiguring Operating System Files.

Steps

1. Log in as root on the management server.

2. Ensure the N1 System Manager is not running.

3. Type n1smconfig to start the reconfiguration process.

4. Respond to each of the configuration prompts according to the requirements of the network to which the N1 System Manager management server is being rehosted.

   For configuration details, see Configuring the N1 System Manager.