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Backup, among other things, is very good at creating multiple copies of giant buckets of data that don’t change much and tend to sit for long periods of time. Since we are in modern times, we have a number of technologies to deal with this problem, one of which is called deduplication with quite a few implementations of it. Microsoft has had server-based storage versions since Windows 2008 R2 that has gotten better with each release, but as any technology still has its pitfalls to be mindful of. In this post I’m going to look a very specific use case of Windows server deduplication, using it as the storage beneath your Veeam Backup and Replication repositories, covering some basic tips to keep your data healthy and performance optimized.
What is Deduplication Anyway?
For those that don’t work with it much imagine you had a copy of War and Peace stored as a Word document with an approximate file size 1 MB. Each day for 30 days you go into the document and change 100 KB worth of the text in the document and save it as a new file on the same volume. With a basic file system like NTFS
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