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Huawei SAN Storage Host Connectivity Guide for VMware ESXi

HUAWEI SAN Storage Host Connectivity Guide for VMware ESXi Servers

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Disabling ATS Heartbeat

Disabling ATS Heartbeat

VMware ESXi 5.5 Update 2 and later versions support VAAI ATS Heartbeat, which may cause the host to lose connectivity to VMFS3 and VMFS5 datastores under certain conditions. For details, see VMware KB ESXi host loses connectivity to a VMFS3 and VMFS5 datastore (2113956).

  • Versions earlier than VMware ESXi 5.5 Update 2 do not support this function and you can skip this operation.
  • In VMware ESXi 5.5 Update 2, 5.5 Update 3, 6.0, 6.0 Update 1, 6.0 Update 2, and 6.0 Update 3, it is recommended that you disable ATS Heartbeat and use the Non-ATS Heartbeat mechanism.
  • In VMware ESXi 6.5 and later versions, this problem is rectified and ATS Heartbeat is enabled by default, and you are advised to retain the default setting.

To disable ATS Heartbeat, perform the following steps:

  1. Log in to the ESXi host using SSH and run the following command to disable ATS Heartbeat:

    #esxcli system settings advanced set -i 0 -o /VMFS3/UseATSForHBOnVMFS5

  2. Verify the result. If ATS Heartbeat has been disabled, the value of /VMFS3/UseATSForHBOnVMFS5 is 0.

    #esxcli system settings advanced list -o /VMFS3/UseATSForHBonVMFS5
    Path: /VMFS3/UseATSForHBOnVMFS5
    Type: integer
    Int Value: 0
    Default Int Value: 1
    Min Value: 0
    Max Value: 1
    String Value:Default
    String Value:
    Valid Characters:Description: Use ATS for HB on ATS supported VMFS5 volumes

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Updated: 2020-01-17

Document ID: EDOC1000144883

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