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ONTAP FLI

ONTAP FLI Windows host remediation

Contributors netapp-barbe netapp-aherbin
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Before running the ONTAP FLI migration on a Windows host, complete these pre-migration steps. There are separate steps for offline and online migrations.

Pre-Migration - Offline FLI

These steps apply to both Offline and Online FLI. Complete the following host-side preparation before unmapping the source LUNs from the Windows host.

Filesystem devices Physical drives (no filesystem) WSFC (WFC) Hyper V

Step 1: Identify the filesystem disks that panned for migration

Step 1: Identify the physical disks that panned for migration

Step 1: Identify the Cluster disks that panned for migration

Step 1: Stop all the application on the Virtual Machines and Shutdown the Virtual Machines.

Step 2: Shutdown the applications gracefully

Step 2 Shutdown the applications gracefully

Step 2 Shutdown the applications gracefully

Step 2: Offline the disk from the host.

Step 3: Offline the disks

Step 3: Shutdown the cluster and stop the cluster services on all the cluster nodes

Step 3: Unmap all the LUNs from the host.

Filesystem devices

Steps

  1. Identify the filesystem disks that planned for migration.

    Get-Disk | Format-Table Number, FriendlyName, Size, PartitionStyle

  2. Shutdown the applications gracefully.

    Stop-Service -Name <ServiceName>

  3. Offline the disks.

    Set-Disk -Number <DiskNumber> -IsOffline $true

Physical drives (no filesystem)

Steps

  1. Identify the physical disks that planned for migration.

    Get-PhysicalDisk | Format-Table FriendlyName, Size, MediaType

  2. Shutdown the applications gracefully.

    Stop-Service -Name <ServiceName>

WSFC (Windows Server Failover Clustering)

Steps

  1. Identify the Cluster disks that planned for migration.

    Get-ClusterResource | Where-Object ResourceType -eq "Physical Disk"

  2. Shutdown the applications gracefully.

    Stop-ClusterResource -Name <ResourceName>

  3. Shutdown the cluster and stop the cluster services on all the cluster nodes.

    Stop-Cluster -Name <ClusterName>

Hyper V

Steps

  1. Stop all the application on the Virtual Machines and Shutdown the Virtual Machines.

    Stop-VM -Name <VM_Name> -Force

  2. Offline the disk from the host.

    Set-Disk -Number <DiskNumber> -IsOffline $true

  3. Unmap all the LUNs from the host from the storage array side.

  4. Make sure the Disks are removed properly from the Host.

    Get-Disk | Where-Object OperationalStatus -ne "Online"

Pre-Migration - Online FLI

Below are specific steps of online FLI but these steps must be preceded by steps in the pre-migration - offline FLI.

The following steps must be carried out after the NetApp LUN is provisioned to the host.

At this point the lun import is already created, lun is mapped to the host igroup and there is either iSCSI or FC Initiator logged in from the host.

For offline FLI, the NetApp LUN remains in the offline state.

Filesystem devices Physical drives (no filesystem)

Step 1: Rescan the storage on all the mapped hosts.

Step 1: Rescan the storage on all the mapped hosts.

Step 2: Identify the drives that are listed and online the disks.

Step 2: add the physical disk to the required application and start.

Step 3: Verify if all the filesystem disks are available and working.

Step 4: Start the required applications.

Filesystem devices

Steps

  1. Rescan the storage on all the mapped hosts.

    Update-HostStorageCache

  2. Identify the drives that are listed and online the disks.

    Get-Disk | Where-Object IsOffline -eq $true
Set-Disk -Number <DiskNumber> -IsOffline $false

  3. Verify if all the filesystem disks are available and working.

    Get-Volume | Format-Table DriveLetter, FileSystemLabel, Size, SizeRemaining

  4. Start the required applications.

    Start-Service -Name <ServiceName>

Physical drives (no filesystem)

Steps

  1. Rescan the storage on all the mapped hosts.

    Update-HostStorageCache

  2. Add the physical disk to the required application and start.

    Application-specific configuration

WSFC

Steps

  1. Rescan the storage on all the mapped hosts.

    Update-HostStorageCache

  2. Identify the drives that are listed and online the disks.

    Get-Disk | Where-Object IsOffline -eq $true
Set-Disk -Number <DiskNumber> -IsOffline $false

  3. Verify if all the mapped hosts has the drives available and online.

    Get-ClusterResource | Where-Object ResourceType -eq "Physical Disk"

  4. Start the WSFC cluster application and configure the required clustered resources.

    Start-Cluster -Name <ClusterName>
Start-ClusterResource -Name <ResourceName>

Hyper V

Steps

  1. Rescan the disk management, All the Disks Should connect.

    Update-HostStorageCache

  2. Select the disks and bring them online, all Should come ONLINE and should get original name and disk letter.

    Get-Disk | Where-Object IsOffline -eq $true
Set-Disk -Number <DiskNumber> -IsOffline $false

  3. Try to power-on Virtual Machines, Virtual Machine should come online without issue.

    Start-VM -Name <VM_Name>