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arcserve-KB : A data corruption problem may occur when you have machines with Intel 82574L or E1000E vNIC network adapters.

Last Update: 2016-11-23 16:59:26 UTC

Description:

A data corruption problem may occur when you have machines with Intel 82574L or E1000E vNIC network adapters on your CA ARCserve Central Host-Based VM Backup environment. This is due to a data corruption issue of this model of network adapters when using its TCP Segmentation Offload (TSO) feature.

Solution:

To avoid this problem, perform one of the following actions:

  • When creating a virtual machine in VMware, select different network adapters instead of E1000E. 
  • For existing virtual machines that contain the E1000E vNIC network adapter; delete it, add a new adapter and connect it to the virtual network.

    Be aware of the following conditions: 

    • Ensure that the environment where the CA ARCserve Central Host-Based VM Backup proxy server resides does not contain the Intel 82574L network adapter or the E1000E vNIC in its entirety. 
    • If the backup destination is a share, then the computer hosting the share should not contain the Intel 82574L or the E1000E vNIC network adapters.
  • If you must use the E1000E vNIC or if you are using a physical computer with Intel 82574L NIC installed, it is recommended that you disable the TSO feature.

More Information:

For more information about this problem, see 'Errata 17 - Tx Data Corruption When Using TCP Segmentation Offload' in the following Intel document:

Intel 82574 Family Gigabit Ethernet Controller Specification Update

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