# Which files can I delete from the folders in the Mobile Device Manager Server to increase space?

Last updated: July 24, 2026

Mobile Device Manager Plus needs at least 5 GB of free disk space to run effectively, so admins should periodically clear unwanted files. After stopping the server, delete zipped log files, older Hprof files, and null folders from the bin folder, old build-number folders from PatchBackup, and all files in `mssql\temp`, keeping the last two backups. The database backup directory can also be moved to another drive or shared location under **Admin** > **Database Backup** for more space.

## Description

Mobile Device Manager Plus requires a certain amount of free disk space to function effectively. Ideally you should have atleast 5 GB of free disk space in the drive, in which you install the Mobile Device Manager server. You should check the size of your folders periodically. When the size exceeds the limit, you should delete unwanted files, as lack of space could affect the creation of logs and application of patches and service packs.

This document gives you information about which files can be deleted.

## Steps

- You can delete the following to increase space in the disk in which the Mobile Device Manager Plus server is installed:
  - Navigate to the Mobile Device Manager Plus server folder. For example, `C:\Program Files\MDMServer`
  - **Delete the following files in the folders given below**:

    > **Note:** Ensure that you stop the Mobile Device Manager Plus server before deleting anything. It is recommended that you keep the last two backup files in each of the folders mentioned below.

    Folder path: `MDMServer>\bin\`. Delete the following files:

    - Zipped log files: This comprises files that were sent to the support team. The name of the file is `MobileDeviceManager_Logs.zip`
    - Heap profiler (Hprof) files: Hprof files are created when the disk space is low. The name of the file has the extension `.hprof`. For example, `java_pid9448.hprof`. **Delete only older hprof files and not the recent ones**.
    - Null folders: Folders with the name `null`

    Folder path: `<MDMServer>\PatchBackup\`. Delete the following folders with names that include the following:

    - `<BuildNumber-TimeStamp>`. For example, `<70137-Feb-22-2011-15-10>`. These folders are created when Mobile Device Manager Plus server is upgraded.
    - Old build numbers

    Folder path: `<MDMServer>\mssql\temp`. Delete all the files in this folder.

    You will now have more space in the drive where the Mobile Device Manager Plus server is installed.

**Note:** You can also change the storage location to another driveshare to increase space in the disk in which the Mobile Device Manager Plus server is installed. Refer the below mentioned links for more information.

- To Change the Mobile Device Manager Plus Database Backup directory, follow the steps mentioned below.
  - Click **Admin** Tab.
  - Select **Database Backup** under **Tools**.
  - Change the location to Backup the the data against **Backup directory**. (This directory can either be in the same computer or a shared directory of a different computer in the network.)

## Frequently asked questions

### Why does Mobile Device Manager Plus need free disk space, and what happens if it runs low?

The server needs at least 5 GB of free disk space to function effectively; low disk space can affect the creation of logs and the application of patches and service packs.

### Which files can I safely delete to free up space on the MDM server?

After stopping the server, you can delete zipped log files (`MobileDeviceManager_Logs.zip`) and older Hprof files from the bin folder, old build-number folders from PatchBackup, and all files in `mssql\temp`, keeping the last two backup files in each folder.