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SCCM Slow Multicast with 2008r2 and 36gb WIM Hash Errors

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Hi Guys,

I have a huge problem. Heres the dp

SCCM 2012 running on Windows Server 2008r2 on ESX with a VMXnet3 10gb Uplink

Autocast

1gb to the client

Im getting 20-30 % client nic usage on a single client autocast when i put 10 on the autocast client nic useage drops to 0.5-2%

On the Server we are seeing next to nothing i think it is 1,500,000bps under resourse monitor

We have all Cisco Gear, We have tried all sorts of settings currently set at

ApBlockSize=1385

TpCacheSize=7550 we have also tried 3145 and it makes no diffence to the speed.

And it takes ages to deploy a 36gb wim file and usual about 40% of the time we get Sparse file encouted when decompressing the wim after file transfur then a hash check failed in the SMSTSlog file

Cisco Guys have looked no issues from their end....

is it the VMXnet / 2008r2 / WDS setting anyone else got these horrible teething issues its so close the the end of the year if i have to go to using ghost to deploy 4500 machines to prevent corruption.. ill go crazy..

Some people are saying this occours with a 2008r2 distrubution point is this true?

I have read all these none of them make any difference

http://support.microsoft.com/kb/2582106?wa=wsignin1.0


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