Reference Guide

○ Agent Free Update—Updates are applied, and the system restarts immediately.

○ Agent-Free Staged Update—Updates that do not require a system restart are applied immediately. Updates that require a

restart are applied when the system restarts.

9. Click Finish.

Conducting maintenance operations

These procedures describe how to prepare for and conduct maintenance operations.

Preparing for maintenance operations

About this task

Use the following PowerShell commands to ensure that all the requirements are met before proceeding with the maintenance operation of

an AX node in an Azure Stack HCI cluster. These steps ensure that all the requirements are met and that no faults exist before placing an

AX node into maintenance mode.

Steps

1. Verify that all the nodes in the cluster are available by running the Get-clusternode command.

2. Verify if all the cluster networks are available by running the Get-ClusterNetwork command.

3. Verify if the cluster status is healthy by running the following commands:

• Get-ClusterS2D

• Get-StoragePool

• Get-StorageSubSystem -FriendlyName *Cluster* | Get-StorageHealthReport

4. Verify that all the physical and virtual drives are healthy by running the following commands:

• Get-physicaldisk

• Get-virtualdisks

5. Verify that no back-end repair jobs are running by running the Get-storagejob command.

Placing an AX node in maintenance mode

About this task

After ensuring that the prerequisites are met and before performing the platform updates, place the AX node in maintenance mode (pause

and drain). You can move roles or virtual machines and gracefully flush and commit data in the AX node.

Steps

1. Run the following command to put the node in maintenance mode (pause and drain). Verify that all the roles and virtual drives are

drained properly and operational in other nodes after they are moved:

Suspend-ClusterNode -name “Hostname” -Drain

2. Place the target node in maintenance mode:

Get-StorageFaultDomain -type StorageScaleUnit | Where-Object {$_.FriendlyName -eq

"<Hostname>"} | Enable-StorageMaintenanceMode

3. Run the Get-Physical Disk command, and ensure that the Operational Status value is in maintenance mode for the drives that

belong to that server.

You can also run the following command and verify that the drives all belong to the paused node:

Get-Storagepool -IsPrimordial 0 |Get-PhysicalDisk | ? operationalstatus -eq 'In

Maintenance Mode' |Get-StorageNode -PhysicallyConnected

4. Turn off the System Lockdown mode.

Day 0 Operations