Disk-based caching controls caching for binary large objects (BLOBs) such as image, sound, and video files, as well as code fragments. Disk-based caching is extremely fast and eliminates the need for database round trips. BLOBs are retrieved from the database once and stored on the Web client. Further requests are served from the cache and trimmed based on security.
Disk-based caching is disabled by default. To enable and customize the disk-based cache, you can run the following script.
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<# .SYNOPSIS Enables and configures the SharePoint BLOB Cache. .DESCRIPTION Enables and configures the SharePoint BLOB Cache. .NOTES File Name: Enable-BlobCache.ps1 Author : Bart Kuppens Version : 2.0 .PARAMETER Url Specifies the URL of the Web Application for which the BLOB cache should be enabled. .PARAMETER Location Specifies the location of the BLOB Cache. .EXAMPLE PS > .\Enable-BlobCache.ps1 -Url http://intranet.westeros.local -Location d:\BlobCache\Intranet Description ----------- This script enables the BLOB cache for the http://intranet.westeros.local web application and stores it under d:\blobcache\intranet #> param( [Parameter(Mandatory=$true, ValueFromPipeline=$false, Position=0)] [string]$Url, [Parameter(Mandatory=$true, ValueFromPipeline=$false, Position=1)] [string]$Location ) # Load the SharePoint PowerShell snapin if needed if ((Get-PSSnapin -Name Microsoft.SharePoint.PowerShell -ErrorAction SilentlyContinue) -eq $null) { Add-PSSnapin Microsoft.SharePoint.PowerShell } $webApp = Get-SPWebApplication $Url $modifications = $webApp.WebConfigModifications | ? { $_.Owner -eq "BlobCacheMod" } if ($modifications.Count -ne $null -and $modifications.Count -gt 0) { Write-Host -ForegroundColor Yellow "Modifications have already been added!" break } # Enable Blob cache [Microsoft.SharePoint.Administration.SPWebConfigModification] $config1 = New-Object Microsoft.SharePoint.Administration.SPWebConfigModification $config1.Path = "configuration/SharePoint/BlobCache" $config1.Name = "enabled" $config1.Value = "true" $config1.Sequence = 0 $config1.Owner = "BlobCacheMod" $config1.Type = 1 # add max-age attribute [Microsoft.SharePoint.Administration.SPWebConfigModification] $config2 = New-Object Microsoft.SharePoint.Administration.SPWebConfigModification $config2.Path = "configuration/SharePoint/BlobCache" $config2.Name = "max-age" $config2.Value = "86400" $config2.Sequence = 0 $config2.Owner = "BlobCacheMod" $config2.Type = 1 # Set the location [Microsoft.SharePoint.Administration.SPWebConfigModification] $config3 = New-Object Microsoft.SharePoint.Administration.SPWebConfigModification $config3.Path = "configuration/SharePoint/BlobCache" $config3.Name = "location" $config3.Value = $Location $config3.Sequence = 0 $config3.Owner = "BlobCacheMod" $config3.Type = 1 #Add mods to webapp and apply to web.config $webApp.WebConfigModifications.Add($config1) $webApp.WebConfigModifications.Add($config2) $webApp.WebConfigModifications.Add($config3) $webApp.Update() $webApp.Parent.ApplyWebConfigModifications() |
Sources:
- https://github.com/bkuppens/powershell
- https://blogs.msdn.microsoft.com/spses/2012/08/28/blob-cache-in-sharepoint/