2.2.1 Replacement of a DP Server

Pre-Condition:

• DP server has stopped processing traffic
• It has been determined that the DP server is defective and needs replacement

Prepare for VM replacement

1. Replace a DP Server:
   1. Identify the DP server that needs to be replaced:

      Hostname: VM DP server hostname

2. Make DP server’s Max Allowed HA Role “OOS” so it does not become active:
   1. From the SDS GUI, navigate to Status & Manage and HA.
   2. Select the DP server that needs to be replaced.
   3. Change its Max Allowed HA Role to "OOS". So it does not become active and click Ok.
3. Remove DP server from the server group:
   1. From the SDS GUI, navigate to Configuration and Server Groups.
   2. Select DP server’s server group and click Edit.
   3. Move DP server out of the server group and click Ok.
4. Replace VM For VMWare based deployments:
   1. Open the cloud client of your choice, for example, vSphere Client and locate the defective DP server VM.
   2. Power down DP server VM and remove it from the inventory or disk.

      For more information, see section 2.2 “Creating SDS Guests (VMware)” from Oracle Communications SDS Cloud Installation Guide.

      .
   3. For KVM or OpenStack based deployments:
      1. Run the following command to log in to the OpenStack control node:

         $ ssh admusr@node

      2. Run the following command to power down defective DP server VM and remove it from the inventory or disk:

         $ nova delete <VM Name>

         For more information, see section 2.3, “Creating SDS Guests from OVA (KVM or OpenStack)” from Oracle Communications SDS Cloud Installation Guide.

   4. For OVM-S/OVM-M based deployments:
      1. Run the following command to log in to the command line interface of the OVM-M:

         OVM> ssh -l admin <OVM-M IP> -p 10000

         Example:

         
         [root@manager01 ~]# ssh -l admin 10.240.16.138 -p
         10000
         admin@10.240.16.138's password:

      2. Run the below command to power down SDS VM(s):

         OVM> stop Vm name=<VM Name>

         Note:

         Wait for the VM to have the state stopped.
      3. Run the below command to remove the VM from the inventory or disk:

         OVM> delete Vm name=<VM Name>

         Note:

         Repeat steps 2 and 3 for all the failed VMs.
      4. See, section 2.4, “Creating SDS Guests from OVA (OVM-S or OVM-M)” from Oracle Communications SDS Cloud Installation Guide.
5. Prepare the new DP SOAM server:
   1. See procedure in section 3.8 "DP Installation (All DP-SOAM Sites)" steps 5 to 10 from Oracle Communications SDS Cloud Installation Guide.
6. Add DP SOAM server to the server group and validate pairing:
   1. Perform the below procedures in sequence on the new DP SOAM server from Oracle Communications SDS Cloud Installation Guide:
      1. Section 3.8, step 2 "Adding DP Server to the SDS Server Group"
      2. Section 3.8, step 4 "Adding DP Server to the SDS Server Group"

Post-Condition

DP SOAM is back in service.