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vMotion fails between hosts using Intel Xeon 56xx or 36xx series processors to hosts using specific Intel processors (1021023)


You receive a vMotion migration error when migrating between a host using Intel Xeon Processor 56xx series or 36xx series to hosts using either Intel Xeon Processor 34xx series or Intel Core i3/i5 processors.


This issue is resolved in ESX 4.0 Update 2. For ESX/ESXi 3.5, this issue is resolved with the following patches depending on the product you are using:
If you do not wish to update or patch ESX/ESXi in order to resolve this issue, as a workaround you can modify the CPU mask using the following mask information.
Feature    Level        Row         Mask
PDPE1GB   1   ecx   ---- ---- ---- --0- ---- ---- ---- ----
80000001 edx   ---- -0-- ---- ---- ---- ---- ---- ----
For more information on modifying CPU masks, see section Modifying Default Mask for Intel CPUs in VMotion CPU Compatibility - Migrations Prevented Due to CPU Mismatch - How to Override Masks (1993)

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