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Knowledge Base TreeSize
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The Windows Explorer and the TreeSize drive list do show the space that is physically allocated on the drive while TreeSize shows the space that is occupied by all files under a certain path. Please make sure that you have the view option "Allocated Space" activated when you are interested in the physically allocated space.
Another possibility is that not all parts of the drive could be scanned due to access restrictions. Therefore it is highly recommended to run TreeSize as administrator. If you want to get notified if a folder cannot be scanned, please open the options dialog (File > Options) and enable "Show error messages during scan" under the option page "Scan > General". Turning on the Option "Track NTFS specific features" in the Options dialog may result in more accurate results, because it racks e.g. hardlinks, but slows down scans. If a drive letter points to a sub-folder of a network drive, the allocated space (correctly) reported by TreeSize may also be much smaller than the physically allocated space on this drive reported by the Windows Explorer because possibly the whole drive is not accessible through the network.
Beyond the space that is needed for storing the files itself, additional space is used for storing management data like the File Allocation Table of the file system or the boot sector. It is not possible to free this space with TreeSize or any other tool. This is usually 0.5 - 2% of the occupied space.
Another possibility is that you are using a Software RAID - like Windows offers it - which spreads the data with redundancy over several disks. These disks will appear as one logical volume and the failure of a single disk will not cause any data loss. But for storing the redundant information additional space is needed, which cannot be used for user data.
A special characteristics of Offline Files can lead to wrong values for the allocated space of stub files. To avoid this, either ensure that the user which runs the scans has full read access to the scanned file system.
Since TreeSize holds file information of scanned directory structures in your system RAM, the theoretically maxiumum disk size that can be scanned or searched by TreeSize is only imitated by your systems memory.
The 32 bit edition of TreeSize can use a maximum of 2 GB RAM (default for Windows applications). This is sufficient for most Home or Small Business environments.
For larger file system structures with several million of files, we recommend the native TreeSize 64 bit edition which is available in TreeSize Professional.
Yes. To get a full report in Excel in TreeSize Professional, you need to check-mark the option "Tools > Options > Export > Excel > Export the full directory branch" and "Include single files in export". Then choose "File > Export > Excel File".
The full version of TreeSize Professional can be installed on an USB stick and can be run from there. To install TreeSize Professional as "portable edition", install it normally on a PC, run TreeSize and click "Tools > Create portable edition".
TreeSize is a stand-alone EXE and not able to do this out of the box. But our product ServerSentinel is specialized in observing servers for states like low disk space and send a notification by email or text message (SMS). Please find additional information at: ServerSentinel - diskspace sensor
Yes. This web page provides an overview on the permissions reporting capabilities of TreeSize.
Right clicking on the header of the Details list will show a popup menu that allows to choose additional columns showing the permissions.
If you export a scan to Excel, these columns will be included as well. (To get a full report in Excel, you need to check-mark the option "Tools > Options > Export > Excel > Export the full directory branch" and optionally "Include single files in export"). Excel Auto-Filter is a good tool to filter the exported lists for specific users or groups. Our product SpaceObServer has better reporting capabilities since V6, for details please see here.
Do you have activated the "Owner" or the "Permissions" column? In Active Directory environments Windows can take a long time to query these values. To speed this up, the only option is to turn off these columns using the"View" menu if not needed.
No. TreeSize does not actively change the archive bit, and the system only changes the archive bit if a file is written. TreeSize works strictly read-only when scanning and searching and also does not modify the last access date if possible,
You can compare a scan to another folder using "Scan > Compare with path". This will show the size and file count differences on folder level between the path that was scanned, and the one that was selected for comparison.
If we would include also the metadata of files, the XML files would grow by factor 10-20 and reach a size that cannot be handled reasoably.
If you need history datas and growth report on file level, we would likew to recommend our product SpaceObServer. It regularly collects the file system information using a background agent and stores it in a SQL database, including size development and (optionally) all permissions. The reporting is faster and more flexible compared to TreeSize, because it is built on a database and collects data on file level. SpaceObServer offers advanced scripting capabilities through OLE Automation.
Since Windows Vista and later, Microsoft enforces more strict security rules on the operating system. One side effect of this is that you may not see your mapped network drives anymore (Windows 8 and later), or they all appear disconnected (typically in Windows Vista and 7) in allapplications that run with administrator privileges.
This is because Windows uses different user environments for non-elevated and elevated processes. There are some workarounds to gain access to those network drives anyway:
- Do not run TreeSize as administrator unless it is truly needed.
- Manually enter the UNC path (e.g. "\\server\share") for the network drive into the path drop-down list and press enter.
- Use the "Map network drive" or "Add drive or UNC path" dialog from the Drive List menu bar.
- [Not recommended because of security bypasses!] Enable "Linked Connections" as described here.
First ensure that you have the TreeSize installer for the full version and your installation key. Both are available within your maintenance period in our customer area:
You can now uninstall TreeSize Professional on your old computer and install it on your new computer.
If you would like to move your user settings from your old computer to your new computer as well, please open the application (File) menu of TreeSize and open the sub menu of the "Options" dialog (small arrow to the right). In the sub menu, please select "Export". A dialog will open that lets you chose a target destination for the TreeSize settings file.
After copying the settings file to the new computer, open TreeSize and open the options sub menu again. Now click "Import" and select the settings file.