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# Windows Server 2008: Performance Tuning Guidelines » D' Technology Weblog: Technology, Blogging, Tips, Tricks, Computer, Hardware, Software, Tutorials, Internet, Web, Gadgets, Fashion, LifeStyle, Entertainment, News and more by Deepak Gupta. said on June 18, 2008 4:25 AM:

PingBack from http://www.ditii.com/2008/06/18/windows-server-2008-performance-tuning-guidelines/

# ALL TOPICS PERFORMANCE said on June 18, 2008 3:05 PM:

The Windows Server Performance team has updated teh Window Server 2008 Tuning guide to include Hyper-V.

# Dilip Naik said on July 5, 2008 5:56 PM:

Couple of quick and minor corrections in Figure 6

Clients side stack is wrong - has an extra MRSXSMB.SYS - RDBSS.SYS "links" with either SMB1.0 rdr or SMB 2.0 rdr

The arrow between the client and server needs to say "SMB1.0 or SMB 2.0" and it needs to be bi-directional

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Thanks Dilip for your observations and feedback - much appreciated!

Mrxsmb.sys holds a common code path for both SMB 1.0 and SMB 2.0 and it is only after negotiating with the remote host on which SMB version should be used that a request branches off to either SMB 1.0 (mrxsmb10.sys) or SMB 2.0 (mrxsmb20.sys) protocols.  Then it calls back into mrxsmb.sys to use its network helper functions to transfer the data.  So the diagram can be confusing so in the next revision of the guide, we will clarify this some more in the text above the diagram.

As part of the revision, we will also change the SMB arrow to be bi-directional.

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