CFX CNF Backup & Restore

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Which CN model serves as the foundation for the backup and restore functionality of ZTS services in CFX CNF?

  • CN Model 1a/b
  • CN Model 3a/b (correct)
  • CN Model 4a/b
  • CN Model 2a/b

What does the CBUR-m component primarily do in the context of CFX CNF backup and restore?

  • It provides a secure channel for transmitting encrypted data.
  • It serves as the interface to external monitoring tools.
  • It coordinates backup and restore operations between application Pods and the 3rd party B&R Client. (correct)
  • It acts as a storage repository for backup data.

In a CFX CNF environment, what is the role of the CBUR-a component during backup operations?

  • To manage the encryption keys for securing backup data.
  • To provide a command-line interface for initiating backup jobs.
  • To act as a sidecar container in every CNF Pod, containing data that needs to be backed up. (correct)
  • To monitor the health and status of the backup process.

Which data is NOT backed up by the CM(CmRepo) ZTS service?

<p>CA-client data (D)</p> Signup and view all the answers

For the ZTS DS(Data Sync) service, what type of data is backed up?

<p>Persistence storage volume (Sync data). (D)</p> Signup and view all the answers

What pieces of information are lost when data is not backed up for the ZTS CS(Config server)?

<p>CS data stored in CRDB (C)</p> Signup and view all the answers

During a backup operation of ZTS User Management(UM), which of the following data is included?

<p>All User credential details (UM-CMDB) (C)</p> Signup and view all the answers

In the described CNF Blueprint Architecture with ZTS, what is the role of the 'Data Service' component?

<p>To provide storage and retrieval mechanisms for application data. (B)</p> Signup and view all the answers

Within the CNF Blueprint Architecture leveraging ZTS, which component is responsible for integrating the CNF with EMS and other Management Systems?

<p>Integration Manager (A)</p> Signup and view all the answers

In the context of the ZTS Backup & Restore Service, what is the primary function of the Containerized B&R server?

<p>To orchestrate and execute backup and restore tasks. (C)</p> Signup and view all the answers

Which component in the ZTS Backup & Restore Service architecture is responsible for routing traffic to the B&R server?

<p>Envoy LB POD (C)</p> Signup and view all the answers

What is a key advantage of using the ZTS Backup & Restore Service framework for Core CNFs?

<p>It provides a common framework and is pre-integrated with Zero Touch Services for backups and restores. (C)</p> Signup and view all the answers

Which of the following is a supported backup location for the ZTS Backup & Restore Service?

<p>Nokia Archive Cloud (ARC) (C)</p> Signup and view all the answers

When setting up the B&R mode during ZTS deployment, what value should be assigned when using Avamar for backup and restore?

<p>AVAMAR (B)</p> Signup and view all the answers

What configuration step is essential in the PlaTo tool during ZTS deployment for backup and restore operations?

<p>Ensuring &quot;backend_mode = AVAMAR&quot; is properly configured (D)</p> Signup and view all the answers

Before performing a local backup, what state should the CBUR be in?

<p>Installed, up, and running. (D)</p> Signup and view all the answers

What command is used to verify the status of CBUR master and Avamar pods in the controller node?

<p><code>kubectl get pods -n ncms -o wide | grep cbur</code> (A)</p> Signup and view all the answers

When performing commands using the CBUR API, what does the namespace parameter refer to in the context of local backup?

<p>The ZTS-installed namespace (A)</p> Signup and view all the answers

After performing a local backup, how do you determine the BACKUP_ID for a particular Helm release?

<p>By navigating to the cbur-avamar pod and checking the <code>/CBUR_REPO/data/</code> directory. (C)</p> Signup and view all the answers

When performing a local restore, what is the first critical step?

<p>Restore need to be performed with latest backup available. (B)</p> Signup and view all the answers

To activate a scheduled backup for all the backup policies when the backend mode is set to local, which command should be executed?

<p><code>curl -s -kL --post301 -X PUT http://cbur-master-cbur.ncms.svc:80/v2/cronjob/&lt;namespace&gt;/&lt;BR policy name&gt;</code> (B)</p> Signup and view all the answers

After activating a scheduled backup and waiting for its execution, how can you confirm that the backup was taken?

<p>Check in Cbur-Avamar pod, /CBUR_REPO/data/<namespace> to confirm Backup was taken. (C)</p> Signup and view all the answers

What are the prerequisites to performing Backup & Restore via Avamar?

<p>Avamar client integration must be done. (A)</p> Signup and view all the answers

When performing backups using Avamar, what connectivity configurations are mentioned ?

<p>SSH connection establishment between Avamar management node and control node of the cluster where ZTS deployed. (B)</p> Signup and view all the answers

According to the documentation on DR backup flow using Avamar, which component receives the initial backup request?

<p>CBUR-m (CBUR-Master) (C)</p> Signup and view all the answers

When configuring Avamar for the first time, how to do access Avamar GUI?

<p>Load the Avamar server page using the IP given. And Click to Administrator. (B)</p> Signup and view all the answers

After logging into the Avamar Administrator GUI, where do you navigate to verify the successful client integration?

<p>The 'Clients' tab. (B)</p> Signup and view all the answers

How can a backup policy be created manually?

<p>By logging to the Policy tab in Admin GUI → click Tools → Manage Datasets. (D)</p> Signup and view all the answers

When creating a backup dataset in Avamar, which option needs to be selected for specifying the data source?

<p>&quot;Enter Explicitly&quot; (C)</p> Signup and view all the answers

What information is needed to accurately specify what backups have to occur in the Source Data tab?

<p>BACKUP/[NAMESPACE]/[DEPLOYMENTISTATEFULSETIDAEMONSET]_k8s_brpolicyname (A)</p> Signup and view all the answers

In Avamar, what actions must be taken to make the data usable?

<p>Setting specific file name, and set it up to &quot;enable advanced&quot; mode. (C)</p> Signup and view all the answers

In Avamar, after providing the pre- and post-scripts when manually configuring a task, we expect the following outcome to happen:

<p>Backup dataset for CA service is created. (B)</p> Signup and view all the answers

What is the command used for activation during data restoration?

<p>Provide the pre and post script in the above tab. (C)</p> Signup and view all the answers

After configuring the data pathway, where are settings imported?

<p>From the clients tab. (A)</p> Signup and view all the answers

What are the last actions that need to be done during data restoration?

<p>Clicking the Run menu. (C)</p> Signup and view all the answers

During a restore operation via the Avamar GUI, what action must be done to ensure data integrity?

<p>Overwrite existing files from the drop-down box and choose Always. (B)</p> Signup and view all the answers

After the necessary script has been provided in the Avamar GUI and ‘OK’ is clicked during a restore, what key event must occur?

<p>The restore command will initiate. (A)</p> Signup and view all the answers

Flashcards

What is CBUR-m?

Acts as a central component, interacts with CBUR-a sidecars to coordinates backup and restore.

What is CBUR-a?

Acts as a sidecar container in every CNF Pod, contains data to be backed up.

What is the B&R client?

It communicates with 3rd party B&R server and Pods push the backed-up data.

What is Containerized CBUR?

It's an asset that can backup/restore Kubernetes Volumes, resources, and Cluster data.

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What is Disaster Recovery Service (ZTS DR)?

A feature that allows backing up and restoring ZTS service

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What does 'backend_mode = AVAMAR' do?

When enabled, performs different backup/restore procedures for different target app existing in the same cluster

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What is Cbur backend mode?

Used for ZTS Backup and restore, set to "AVAMAR" or "local".

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What is the command to check cbur status?

Command to check status of cbur master and cbur avamar pod

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What is Backup & Restore Service?

Common framework for backup & restore of Core CNFs.

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What should I know by the end of Module 7?

Nodes involved in back and restore procedure of CFX CNF, local backup and restore, and backup and restore using Avamar

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What is needed to be accessed for Avamar GUI/CLI?

Avamar server

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What is needed for CBUR-master deployment?

Establish SSH connection between Avamar management node and control node, open bidirectional connection on tcp_29000, tcp_30001-30003, tcp_28002, tcp_28001, and open bidirectional connection on tcp_2049, tcp_111 ports.

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Where can the Backup ID be determined?

The directories for all the BR policies of all the Helm releases are available here.

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How to log in to the policy tab in Admin GUI?

Policy tab in Admin GUI -> click Tools -> Manage Datasets -> ARC -> New, set dataset name

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Command on setting up source data tab

Source Data tab -> click Enter Explicity -> Linux File System -> Select files and folder -> /BACKUP/[NAMESPACE]/[DEPLOYMENTISTATEFULSETIDAEMONSET]_k8s_brpolicyname

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What is typically being configured in Source Data tab?

Enter explicit data

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What settings are required in the options tab?

Linux File System as the plug-in type, and Enable the Advanced option

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How to perform cloud backup through Avamar?

After backup group is create, enter the policy Tab in Admin GUI, navigate to our Back group, and click run

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How to check cloud status?

The command to check the cloud back up through Avamar

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Relate operations for a restore?

Operations, provide pre and post script in the restore tab

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Study Notes

Module 7: CFX CNF Backup & Restore

  • This module covers CFX CNF R22 Care Certification, presented in August 2023 by Ganapathi M, Technical Lead IMS.
  • The agenda includes objectives, overview of CFX CNF ZTS service backup and restore, local backup and restore procedures, Nokia Archive Cloud (Avamar), creating backup policies, backup/restore operations with Avamar, and a summary.

Module Objectives

  • Understand nodes involved in the CFX CNF backup and restore procedures
  • Perform local backup and restore
  • Implement Avamar for backup and restore

Overview of CFX CNF ZTS Service Backup and Restore

  • ZTS provides a wide range of O&M services, including Zero Touch Services, to manage and automate CNFs
  • Key services include Config Repo, Event Processing, Log Forwarding, Integration Manager, Lifecycle Assist, Service Discovery, and CLI Connector.
  • Security services consist of Certificate Management, User and Role Management, and Secrets Repo
  • Disaster Recovery and Data repo Services include Data Sink and Backup & Restore
  • Monitoring and troubleshooting services are Local Management Suite and Tracker
  • The backup and restore functionality utilizes the CN Model 3a/b and is known as Disaster Recovery Service (ZTS DR).
  • The solution is based on a containerized Nokia Common Software Foundation (CSF) CBUR product supporting distributed CBUR-master and CBUR-agent architectures.

CFX CNF Backup and Restore Components

  • CBUR-m (Master): Central component coordinating backup and restore between application Pods and the 3rd party B&R Client interaction.
  • CBUR-a (Agent): Sidecar container in every CNF Pod with data to backed up.
  • B&R client: 3rd party B&R Client Pods pushing backed up data to the server with communication through a 3rd party server.
  • Containerized CBUR can back up and restore Kubernetes Volumes, resources, and Cluster data.
  • Cluster Backup / restore supports DR and is specific to NCS Environments.

Backup Supported ZTS Service Data

  • CA: Backs up all certificates stored in CMDB(CA-CMDB), omits CA-client data
  • CM(CmRepo): Backs up app CNF data (CM-CRDB) and CM's OAM data (confd), omitting CM Logs
  • CS(Config server): Backs up CS data stored in CRDB.
  • Custom matrix: Details the number of CM & EPS pods scaled out at the time of backup.
  • DS(Data Sync): Backs up the persistence storage volume (Sync data).
  • EPS: Backs up CNF metadata and adaptations, CNF's data, but not FM and PM data

Local Backup Procedure

  • Enable backend_mode = local in ztsdeployment.cfg during the installation.
  • CBUR must be installed and its procedure is the same as that of Backup and Restore with Avamar
  • CBUR master and Avamar pod statuses can be checked via the controller node using kubectl command.

Local Restore Procedure:

  • Restores from the latest backup.

Local Scheduled Backup Procedure

  • Can enable scheduled backup when the backend mode is set to local.
  • Available BR Policies can be checked with kubectl get br -n .
  • Activate backup with command "curl -s -kL --post301 -X PUT ..."
  • Confirm with a check in Cbur-Avamar pod, under path /CBUR_REPO/data/.

Nokia Archive Cloud (Avamar)

  • Done via GUI/CLI, with the GUI detailed in this presentation.
  • Prerequisites are; AVAMAR Admin GUI/Management node CLI access and CBUR master deployment

DR Backup Flow using Avamar

  • CBUR-m(CBUR-Master) receives Avamar server backup request and validates deployment, BrPolicy matching target deployment pod.
  • CBUR-m (CBUR-Master) executes the pre-backup hook, and CBUR-a (Agent) retrieves data from target volume and sends it to CBUR-m via Kubernet API’s
  • CBUR-M saves the data locally and moves it to other Avamar servers, then execs the post-backup hook on the target pod.

Accessing Avamar GUI

  • Load Avamar server page using the given IP and log in.
  • Navigate to Policy Tab.

Creating Backup Dataset

  • Log in to the Policy tab in Admin GUI and go to, click Tools → Manage Datasets.
  • Create scheduled backup and retention policy.
  • In the Source Data tab, click Enter Explicity and select Linux File System, then Select Files and Folder.
  • Input folder is in format "BACKUP/[NAMESPACE]/[DEPLOYMENTISTATEFULSETIDAEMONSET]_k8s_brpolicyname"

Creating Schedule & Retention Policy

  • In the Admin GUI, access the Policy tab, then specify Retention policy through tools → Manage Retention Policies.
  • Create new schedules by clicking ARC/ (your domain).

Creating Policy and Backup group

  • In Admin GUI Policy tab, select ARC/ (Your Domain).
  • Follow Actions → Groups → New → Backup Group to create a policy, then attach created dataset.
  • Select existing schedules and retention policy, then finally add members for the backup group.

Backup with Avamar GUI

  • Post group creation, perform OnDemand/Scheduled backup.
  • Command line to find out list: "arccli backup list -c <CLIENT_HOSTNAME>"
  • Backlog can be checked at path "/var/avamar/clientlogs"

Restore with Avamar

  • Initiate via the Backup & Restore tab in the Avamar Administrator, selecting ARC/ (Your Own Domain).
  • Find the target backup file and use Action, then restore.
  • In the new dialogue box select the plugin and enable Advanced options.
  • Provide the following information and click OK, the restore will begin when triggered.
  • Can then check the restore logs in the avamar pod using command (kubectl exec -it -n ncms bash) at path (#cd /var/avamar/clientlogs)

Summary

  • How to perform disaster recovery using CFX backup and restore
  • Local backup and restore
  • Avamar backup and restore procedures
  • Location of specific Pods to execute commands and check logs.

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