New server planning

[irBosOtter]

Moved our software share over a well, 37% saving on that one

Did the eval tool on a 4.5TB file share, says it will be 60% saving on that one, will see if it's the same once that's on the new server, but that will take a while longer to move over

 

[The_Unbeliever]

Will it work if you activate the dedup tool first on a new server before copying old data over?

Or must the data be first copied over before running the dedup tool?

 

[irBosOtter]

You can enable it afterwards, or before, up to you, forgot I enabled this one last night as well, 60% saving here on this file share

 

[The_Unbeliever]

That is so cool.

I know we have lots of dupes on our current server, but I can't be arsed to search, locate and delete. Will take too long.


If it locates a duplicate, does it substitute a link to the original file and delete the copy?

 

[Cray]

That is so cool.

I know we have lots of dupes on our current server, but I can't be arsed to search, locate and delete. Will take too long.


If it locates a duplicate, does it substitute a link to the original file and delete the copy?

It's much more in depth than that- it goes down to block levels within files.


http://technet.microsoft.com/en-us/library/hh831602.aspx

Data deduplication involves finding and removing duplication within data without compromising its fidelity or integrity. The goal is to store more data in less space by segmenting files into small variable-sized chunks (32–128 KB), identifying duplicate chunks, and maintaining a single copy of each chunk. Redundant copies of the chunk are replaced by a reference to the single copy. The chunks are compressed and then organized into special container files in the System Volume Information folder.

So if you have two files that are 90% similar, it will retain the common 90% and the unique 10% for each file. This is handled seamlessly by the OS so you seem to have two separate files but in reality 90% of the common data is actually the one file.