Planning for the procedure
Background knowledge
This procedure assumes that:
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you are installing into an existing VMware vSphere deployment which has pre-configured networks and VLANs; this procedure does not cover setting up a VMware vSphere deployment from scratch
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you are upgrading an existing downlevel deployment for MMT GSM.
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you have deployed a SIMPL VM, and have followed all the pre-upgrade steps.
Method of procedure
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Refer to the SIMPL VM Documentation for details on the commands mentioned in the procedure. |
Deployments using SIMPL 6.7.3
Step 1 - Upgrade the initial downlevel MMT GSM VMs
The VM with the Rhino node that has the lowest ID must be upgraded last.
Upgrade all of the other VMs using the following command:
csar update --vnf mmt-gsm --sites <site> --service-group <service_group> --index-range <range> --sdf <path to SDF>.
The indexes start from 0, therefore 0 is the first VM.
The --index-range accepts ranges as well as comma separated indexes (e.g. 1-3,7,9).
To upgrade the VMs in stages, run the command multiple times using the appropriate --index-range values.
The following will occur one MMT GSM node at a time:
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The downlevel node will be quiesced.
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The uplevel node will be created and boot up.
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The VM will automatically start applying configuration from the files you uploaded to CDS in the above steps. During this phase, the status of the VM in MDM will be Orange.
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Once configuration is complete, the status will change to Green, and the node will be ready for service. At this point the
csar updatecommand will move on to the next MMT GSM VM, or report that the upgrade of the MMT GSM was successful if all nodes have now been upgraded. -
Once the upgrade is complete, place calls and run any additional validation tests to verify the uplevel VMs are working as expected.
Backout procedure
If the upgrade has brought up uplevel VMs to replace the downlevel VMs, then the uplevel VMs can be rolled back to the downlevel VMs. To rollback, repeat the steps above with the downlevel MMT GSM CSAR and downlevel SDF. The lowest uplevel VM must be rolled back last. For example, if VMs 2-5 are in the uplevel, you must rollback VMs 3-5 then rollback VM 2.
You may need to use the --skip pre-update-checks flag as part of the csar update command.
The --skip pre-update-checks flag allows rollbacks when a node is unhealthy.
If the upgrade has failed to bring up the uplevel VMs or the rollback has failed to bring up the downlevel VMs,
then you must redeploy the downlevel VMs.
run csar redeploy --vnf mmt-gsm --sites <site> --sdf <path to SDF>.
Diagnostics during the quiesce stage
When the downlevel VMs are quiesced, they upload some diagnostics to the CDS. These may be useful if the upgrade or rollback fails.
To get these diagnostics, follow instructions from Retrieving Initconf and Rhino logs with export-log-history.
Deployments using SIMPL 6.6.x
Step 1 - Validate the SDF
Run csar validate-vsphere --sdf <path to SDF>.
This will validate the uplevel SDF.
Step 2 - Generate the Terraform Template
Run csar generate --vnf mmt-gsm --sdf <path to SDF>.
This will generate the terraform template.
Step 3 - Upgrade the downlevel MMT GSM VMs
The VM with the Rhino node that has the lowest ID must be upgraded last.
Upgrade all of the other VMs using the following command:
csar update --vnf mmt-gsm --sites <site> --service-group <service_group> --index-range <range>.
The indexes start from 0, therefore 0 is the first VM.
The --index-range accepts ranges as well as comma separated indexes (e.g. 1-3,7,9).
To upgrade the VMs in stages, run the command multiple times using the appropriate --index-range values.
The following will occur one MMT GSM node at a time:
-
The downlevel node will be quiesced.
-
The uplevel node will be created and boot up.
-
The VM will automatically start applying configuration from the files you uploaded to CDS in the above steps. During this phase, the status of the VM in MDM will be Orange.
-
Once configuration is complete, the status will change to Green, and the node will be ready for service. At this point the
csar updatecommand will move on to the next MMT GSM VM, or report that the upgrade of the MMT GSM was successful if all nodes have now been upgraded. -
Once the upgrade is complete, place calls and run any additional validation tests to verify the uplevel VMs are working as expected.
Backout procedure
If the upgrade has brought up uplevel VMs to replace the downlevel VMs, then the uplevel VMs can be rolled back to the downlevel VMs. To rollback, repeat the steps above with the downlevel MMT GSM CSAR and downlevel SDF. The lowest uplevel VM must be rolled back last. For example, if VMs 2-5 are in the uplevel, you must rollback VMs 3-5 then rollback VM 2.
You may need to use the --skip-pre-update-checks flag as part of the csar update command.
The --skip-pre-update-checks flag allows rollbacks when a node is unhealthy.
If the upgrade has failed to bring up the uplevel VMs or the rollback has failed to bring up the downlevel VMs,
then you must redeploy the downlevel VMs.
run csar deploy --redeploy --vnf mmt-gsm --sites <site>.
Diagnostics during the quiesce stage
When the downlevel VMs are quiesced, they upload some diagnostics to the CDS. These may be useful if the upgrade or rollback fails.
To get these diagnostics, follow instructions from Retrieving Initconf and Rhino logs with export-log-history.
Next Step
If you are upgrading a full set of VMs, go to Rolling upgrade SMO nodes on VMware vSphere, otherwise follow the post upgrade instructions here: Post rolling upgrade steps
