Extending schema for Exchange 2013 – error id: 8224


Preparing Schema:

LAB: Exchange 2013 on Windows Server 2008 R2 both virtuals on VMWare Workstation 8.0.

I have faced problem with Extending schema for Exchange 2013 on virtualized environment. My account was Schema admin and replication between DCs was OK.

Error 8224

Googling results:

The root cause of this issue is, that TCP Chimney Offload and Receive Side Scaling features are enabled on Windows 2008 R2 server by default, however it has performance problems on virtual machines, because it utilizes network interface for offloading TCP traffic instead of CPU.

Default interface features on Windows Server 2008 R2

Default interface features on Windows Server 2008 R2

These features can be disabled by issuing the following commands into elevated command prompt. Features should be disabled on all virtual machines, but primarily on DC with Schema master role:

To disable Receive Side Scaling:

netsh int tcp set global rss=disabled

To disable TCP chimney:

netsh int tcp set global chimney=disabled

To show interface status:

netsh int tcp show global
Disabling TCP Chimney and RSS result

Disabling TCP Chimney and RSS result

Windows Server 2012

For Windows server 2012 TCP default global configuration has changed. By default the configuration of Chimney offload state is as it should be without need of change. You still need to change Receive-Side Scaling there:

Before:

TCP Global Parameters
----------------------------------------------
Receive-Side Scaling State          : enabled
Chimney Offload State               : disabled
NetDMA State                        : disabled
Direct Cache Access (DCA)           : disabled
Receive Window Auto-Tuning Level    : normal
Add-On Congestion Control Provider  : none
ECN Capability                      : enabled
RFC 1323 Timestamps                 : disabled
Initial RTO                         : 3000
Receive Segment Coalescing State    : enabled

After:

Netsh int tcp set global rss=disabled

netsh int tcp show global

TCP Global Parameters
----------------------------------------------
Receive-Side Scaling State          : disabled
Chimney Offload State               : disabled
NetDMA State                        : disabled
Direct Cache Access (DCA)           : disabled
Receive Window Auto-Tuning Level    : normal
Add-On Congestion Control Provider  : none
ECN Capability                      : enabled
RFC 1323 Timestamps                 : disabled
Initial RTO                         : 3000
Receive Segment Coalescing State    : enabled
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2 thoughts on “Extending schema for Exchange 2013 – error id: 8224

  1. Pingback: Extending schema for Exchange 2013 – error id: 8224 #2 | FICILITY.NET

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