Create a file to store this powershell script (ex.: ManageDisks.ps1) :

[code language=”shell”]

Clear-Host
$action = Read-Host ‘Type "Off" to set disks offline or "On" to set them online’
Clear-Host
if ($action.ToLower() -eq ‘off’)
{
echo ‘Please Wait…’
$lines = Get-Content C:\OffLineDisks.txt
foreach ($line in $lines) {
if ($line.Trim())
{
$fields = $line -split ‘ : ‘
$disk = $fields[1] $command = ‘"select disk ‘ + $disk + ‘", "offline disk" | diskpart’
echo $command
invoke-expression $command
}
}
}
elseif ($action.ToLower() -eq ‘on’) {
echo ‘Please Wait…’
Get-Disk | ? isoffline | Format-List Number > C:\OffLineDisks.txt
$lines = Get-Content C:\OffLineDisks.txt
foreach ($line in $lines) {
if ($line.Trim()) {
$fields = $line -split ‘ : ‘
$disk = $fields[1] $command = ‘"select disk ‘ + $disk + ‘", "online disk", "detail disk" | diskpart | Where-Object {$_ -match ".*Volume.*Partition" } 2>&1’
echo $command
$output = invoke-expression $command
if ($output -eq $null) {
echo "No Volume on disk $disk"
} else {
$fields = $output.TrimStart(" Volume") -split ‘ ‘
$volume = $fields[0] $command = ‘"select volume ‘ + $volume + ‘", "assign" | diskpart’
echo $command
invoke-expression $command
}
}
}
}
else
{
$message = $action + ‘ is not a supported action’
echo $message
}

[/code]

Usage: run this script “As Administrator” and

Type  ‘On’ to set online all disks currently offline. This will:

1. Create a file OffLineDisks.txt on the C:\ drive with the ID of the disks currently offline. I presume that all disk offline are used by FlexRaid!
2. Bring online each of those disks.
3. Assign a letter to the volumes on those disks. I presume that there is only one volume per DRU and none on the PPU.

Type ‘Off’ to set offline the disks listed in the file OffLineDisks.txt created previously.

Doing a Chkdsk on the NZFS Virtual Drive, I got:

So, instead, I do it on Physical Drives once set back online. And instead of Chkdks, I am using the powershell command “Repair-Volume”. E.g.: on a disk assigned with letter X: