Exam Ref 70-745 Implementing a Software-Defined DataCenter by Jeff Graves & Joel Stidley

Author:Jeff Graves & Joel Stidley [Graves, Jeff]
Language: eng
Format: epub
Publisher: Pearson Education
Published: 2017-11-15T00:00:00+00:00

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Exam Tip

Use the DumpSlbRestState script to query just SLB configuration state information at: https://github.com/Microsoft/SDN/blob/master/Diagnostics/DumpSlbRestState.ps1.

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Manage SDN components for service branching and patching considerations

As updates are released for the Network Controller and support services and roles, it’s important to keep the infrastructure updated to address bugfixes and security concerns. It’s equally important to ensure that tested disaster recovery and rollback procedures are in place. As such, having backups of Network Controller state and role configuration is imperative. Ideally, patches and updates would be deployed to a test environment with a mirrored configuration prior to rolling out to production. One way to achieve this is to restore a copy of a production backup to the test environment. Follow the steps below to backup and restore the Network Controller configuration.

To backup a Network Controller configuration:

1. Backup the Network Controller VMs, MUX nodes, and RAS Gateways using an application consistent backup technology. System Center Data Protection Manager and Azure Backup are two technologies that can take application consistent VM-level backups.

2. Backup the VMM configuration database in SQL Server using an application consistent backup technology. SQL Server natively provides backup capabilities and includes transaction log backups that minimize data loss. Both System Center Data Protection Manager and Azure Backup can also protect SQL Server instances.

3. Use the New-NetworkControllerBackup PowerShell cmdlet to back up the Network Controller database:

Click here to view code image

$cred = New-Object Microsoft.Windows.NetworkController.CredentialProperties

$cred.Type = “usernamePassword”

$cred.UserName = “Contoso\BackupUser”

$cred.Value = “pass@word1”

$backupCred = New-NetworkControllerCredential -ConnectionUri $uri -ResourceId

“BackupUser” -Properties $cred

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