SharePoint 2013 How to Backup Site Collection Automatically With a PowerShell Script

In this post I will introduce a way how to run a script for backing up SharePoint data which could be scheduled to run automatically.

Step 1:Create a PowerShell Script for Backing up a site collection

param([string] $site,[string] $dir,[string] $type)

if(!(Get-PSSnapin |Where-Object {$_.Name -eq "Microsoft.SharePoint.PowerShell"}))

{

Add-PSSnapin "Microsoft.SharePoint.PowerShell"

}

Start-SPAssignment -Global #防止内存泄露 #

function IsNullOrEmpty($str)

{

if($str)

{

return $false

}

else

{

return $true

}

}

$currentDate=Get-Date -Format "yyyy-MM-dd HH-mm-ss"

$logFile="$dir\BackupLog.log"

try

{

Write-Host "开始备份 $site ($type) 到 $dir"

Write "Site Collection Url:$site($type)">>$logFile

Write "Dir Path:$dir">>$logFile

if(IsNullOrEmpty($site))

{

Write-Host "Site Collection不能为空"

Write "Site Collection不能为空">>$logFile

return

}

if(IsNullOrEmpty($dir))

{

Write-Host "路径不能为空"

Write "路径不能为空">>$logFile

return

}

Backup-SPSite -Identity $site -Path $dir\$currentDate-$type.bak -Force

Write-Host "备份成功"

Write "成功于 $currentDate 备份 $site ">>$logFile

}

catch

{

Write-Host "备份失败，具体信息详见Log"

Write "$currentDate Error:$_">>$logFile

}

Stop-SPAssignment -Global

Write-Host "PowerShell 执行完毕"

Write "PowerShell 执行完毕">>$logFile

Basically,the above script will do the following:

Assign all the needed information to start backup.

Try to create a new backup script and name the file based on current date.

If Successful,it will write a success message to the log file.Otherwise,it will log the error/Exception

Step 2:Create a batch file to run the automatically backup powershell script

Notes,it will pass 3 parameters
cd /d %~dp0
powershell -file ".\autobackupSiteCollection.ps1" "http://sp/sites/UAT" "F:\SharePoint 2013 Backup" "UAT"
@pause

Step 3:Copy both the script and batch file to a folder on the SharePoint Server

Finally,Run the Batch File to start Backing up the site collection immediately.Or use Windows Task Scheduler to schedule it.

Step 4:Schedule a Batch File to Run automatically

There are occasions where you might need to schedule to run a batch file automatically in your windows server.So I will show you how to do it.

Click Start and under Search,type in "任务计划程序" and Open it

Select "创建基本任务" from "操作"Menu



Under "创建基本任务",type in Name you like and click Next



From the "触发器" Select,Select the option you like and click Next



I chose "每日" and Click Next,which brought me to this screen

Then click on "开始程序" and click next

Next Select "浏览" and Select the batch file you like run



Finally,Click on Finsh to create a Task

Now,that we have created a Task,we have to make sure it runs highest Privilege. we have to make sure that when you run the file it not should fail.

Right Click the task you just created and Select Property

Click on "使用最高权限运行" then click OK.