How to reclaim space from deleted files on windows server deduplication volume

Windows server has great deduplication functionality allowing for increased usable capacity on non-operating system volumes, by performing block level deduplication to increase storage efficiency. This is particularly useful for storing data such as backups, which often involves minimal changing data, so a prime candidate for effective deduplication.

The problem often encountered with deduplication volumes is that when files are deleted, the space is not immediately reclaimed by the operating system. A "garbage collection" process needs to be run in order for the deduplication engine to reclaim this space.

Thankfully, this is incredibly easy to do and can be done from a powershell command prompt - here's the command you need to run;

start-dedupjob -type GarbageCollection -full -path e: -FastStart $true

Be sure to change the -path variable from E: to whatever drive you wish to run the garbage collection on. Also note that depending on the size of your volume, the garbage collection can take some time to initiate and complete, even with using the -FastStart switch.

You can check the progress of your deduplication jobs by running the command

get-dedupjob

Microsoft Teams - How to Archive Teams using Powershell

Microsoft Teams has a great feature that allows users (and administrators) to archive teams instead of deleting them when they are no longer required. This can be convenient as archived teams are no longer visible to users, but can easily be re-activated (or unarchived) if they, or their contents are required in the future - which isn't possible if you delete a team.

To archive a team, use the command below

Connect-MicrosoftTeams

Set-TeamArchivedState -groupid "teamgroupidnumber123" -Archived:$true

Be sure to update the groupid with the unique groupid for the team you wish to archive. If you don't know what the groupid is, run the cmdlet below

Get-Team -displayname "Team Name"

The GroupID will be displayed in the matching results

After the team is archived you can still view it through the Teams Admin Console

Managing Google Classroom with GAM and Powershell

Part of my job requires me to actively manage our instance of Google Classroom - the adding/removal of teachers, students, changing of class owners are just a couple of the every day tasks that are required. Unfortunately, Google Classroom doesn't have an included management interface for doing this - but there is a great command line utility called "GAM" which I use to accomplish these tasks.

I looked at a few different management utilities to do this - and essentially left GAM until last as I was really after a reliable (and free) utility that had a graphical user interface (GUI) instead of command line, but unfortunately at the time I was looking there was nothing that met these requirements (and worked) for me.

GAM can be downloaded from here - they have an excellent Wiki section with detailed instructions on how to get GAM setup and running within your environment.

In subsequent blog posts I'll be covering some of the scripts/commands that I use to manage and bring some control over Google Classroom such as identifying active classes, exporting them to CSV, archiving (disabling) old classes that are no longer required, synchronising members (teachers and students) and managing/maintaining the owners of Classrooms.

I'll be executing GAM commands from within powershell to do this.

What tool do you use for managing Google Classroom? Do you wish Google would create some kind of web/graphical user interface to do this?