Deduplication in Windows 2012
Posted on 2014-09-22
I ran the 2012's Data Deduplication Savings Evaluation Tool on one of our file servers looking for a way to save some space.
These were the results:
Microsoft Windows [Version 6.2.9200]
(c) 2012 Microsoft Corporation. All rights reserved.
Data Deduplication Savings Evaluation Tool
Copyright (c) 2012 Microsoft Corporation. All Rights Reserved.
Evaluated folder: E:
Evaluated folder size: 7.46 TB
Files in evaluated folder: 3089004
Processed files: 1739919
Processed files size: 7.45 TB
Optimized files size: 2.37 TB
Space savings: 5.08 TB
Space savings percent: 68
Optimized files size (no compression): 3.15 TB
Space savings (no compression): 4.30 TB
Space savings percent (no compression): 57
Files excluded by policy: 1349085
Small files (<32KB): 1349085
Files excluded by error: 831
Oplock break: 1
Sharing violation: 38
Error opening file: 792
That seems like pretty incredible savings.
Can you offer some advice on best practices when implementing this feature?
What are the pros and cons, etc.
Are you aware of any performance issues?