You just need to be aware of things like encrypted files, where changing the 
file and re-encrypting will typically change the entire file.

Also, for very large data sets, be aware of the need to size your DFS-R cache 
on each server.

Cheers
Ken

From: Brian Desmond [mailto:[email protected]]
Sent: Thursday, 7 February 2013 7:21 AM
To: NT System Admin Issues
Subject: RE: DFSR question regarding RDC

Yes it's block level. IIRC down to like 64KB blocks that it does the diff at. 
Once you put the first image out there, you should only expect to replicate the 
diffs in all the other images.

Thanks,
Brian Desmond
[email protected]<mailto:[email protected]>

w - 312.625.1438 | c - 312.731.3132

From: Christopher Bodnar [mailto:[email protected]]
Sent: Wednesday, February 6, 2013 10:41 AM
To: NT System Admin Issues
Subject: DFSR question regarding RDC

Got a question about this:

http://msdn.microsoft.com/en-us/library/windows/desktop/bb540025(v=vs.85).aspx


"Replicating data to multiple servers increases data availability and gives 
users in remote sites fast, reliable access to files. DFSR uses a new 
compression algorithm called Remote Differential Compression (RDC). RDC is a 
"diff over the wire" protocol that can be used to efficiently update files over 
a limited-bandwidth network. RDC detects insertions, removals, and 
rearrangements of data in files, enabling DFSR to replicate only the deltas 
(changes) when files are updated."

Just curious if anyone has really looked at this in regards to the RDC feature 
in larger files. Got a replication set we are going to setup. These will be 
larger files (17-25G), they will be images for Citrix Provisioning server. 
Wanted to know if it's really doing delta's in larger images files as they 
change, or replicating the whole thing.

Thanks
Christopher Bodnar
Enterprise Architect I, Corporate Office of Technology:Enterprise Architecture 
and Engineering Services

Tel 610-807-6459
3900 Burgess Place, Bethlehem, PA 18017
[email protected]<mailto:>

[cid:[email protected]]

The Guardian Life Insurance Company of America

www.guardianlife.com<http://www.guardianlife.com/>







~ Finally, powerful endpoint security that ISN'T a resource hog! ~
~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/>  ~

---
To manage subscriptions click here: 
http://lyris.sunbelt-software.com/read/my_forums/
or send an email to [email protected]
with the body: unsubscribe ntsysadmin

<<inline: image001.jpg>>

Reply via email to