Backup to a filespace via PowerShell script

Example PowerShell script to perform a DR operation from a local directory data source to a filespace mount-point. This particular scripting example can be adapted.

It relies on LucidLink client installed as a service with an unmounted mount-point and ensures it is only running once.

Once initiated, it mounts the filespace to Z:, confirms the mount exists and performs a Robocopy from example path C:\Data to Z:\Data, awaits upload completion, syncs metadata and file data before unmounting.

Setup:

lucid2 service --install
lucid2 service --start
lucid2 link --fs <filespace.domain>

Schedule:

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe -ExecutionPolicy Bypass -File "dr_sync.ps1"

Script:

Function CheckRunning {

        [CmdletBinding()]
        Param (
            [Parameter(Mandatory=$true)]
            [ValidateNotNullorEmpty()]
            [String]$ScriptName
        )
        $PsScriptsRunning = get-wmiobject win32_process | where{$_.processname -eq 'powershell.exe'} | select-object commandline,ProcessId

        ForEach ($PsCmdLine in $PsScriptsRunning){
            [Int32]$OtherPID = $PsCmdLine.ProcessId
            [String]$OtherCmdLine = $PsCmdLine.commandline
                If (($OtherCmdLine -match $ScriptName) -And ($OtherPID -ne $PID) ){
                Write-host "[$ScriptName] already running"
                Start-Sleep -Second 5
                Exit           
            }
        }
    } 

function LLMount {
 Start-Process -WindowStyle hidden -FilePath "C:\Program Files\Lucid\Resources\Lucid.exe" -ArgumentList "mount --mount-point z:"   
}

function DrPath {
do {
$Dr = "z:"
$DrExists = Test-Path $Dr
If ($DrExists -eq $False) {sleep 1}
} until ($DrExists -eq $True)
}

function Backup {
 C:\Windows\System32\Robocopy.exe c:\data z:\data /Z /E /R:0 /W:0 /MIR /COPYALL /NP
}

function DirtyBytes {
do { 
   $dirtyBytes = (lucid2 perf --cache dirtyBytes --seconds 0 --no-timestamp) -replace '[^0-9]' #get dirtyBytes, reduce to number value
   If ($? -ne "True") {Break} #break do if invoke-restmethod errors
   sleep 1 #reduce CPU load
   } until ($dirtyBytes -eq 0) #exit when dirtyBytes=0
}

function Sync {
 Start-Process -WindowStyle hidden -FilePath "C:\Program Files\Lucid\Resources\Lucid.exe" -ArgumentList "sync" -Wait
}

function Unmount {
 Start-Process -WindowStyle hidden -FilePath "C:\Program Files\Lucid\Resources\Lucid.exe" -ArgumentList "unmount" -Wait
}

function SnapshotDR {
  $time = (get-date).ToString('T')
  $time = $time -replace '[a-z,:]'
  Start-Process -WindowStyle hidden -FilePath "C:\Program Files\Lucid\Resources\Lucid.exe" -ArgumentList "snapshot --create $time --password <rootpassword>"
  }

#Check if running
$ScriptName = $MyInvocation.MyCommand.Name #Get name of current script
CheckRunning -ScriptName $ScriptName

#Mount
LLMount

#Await paths
DrPath

#Sync
Sync

#Backup
Backup

#Sync
Sync

#Cache flush
DirtyBytes

#Snapshot DR with basic timestamp
#SnapshotDR

#Unlink
Unmount

optional: uncomment "SnapshotDR" function to snapshot the filespace. you must provide your 'root' password. update <rootpassword> accordingly

dr_sync.ps12 KB

Backup to a filespace via PowerShell script

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