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Copy file name to clipboardExpand all lines: articles/azure-vmware/configure-vsan.md
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@@ -16,7 +16,7 @@ VMware vSAN has many capabilities that are included with every Azure VMware Solu
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Azure VMware Solution defaults with the following configurations per cluster:
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|**Field**|**Value**|
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| Field | Value |
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| --- | --- |
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|**TRIM/UNMAP**| Disabled |
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|**Space efficiency**| Deduplication and compression |
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In this article, learn how to:
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> [!div class="checklist"]
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> * Enable or disable vSAN TRIM/UNMAP
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> * Enable vSAN compression only
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> * Disable vSAN deduplication and compression
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> * Enable or disable vSAN data-in-transit encryption
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> * Enable or disable vSAN TRIM/UNMAP.
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> * Enable vSAN compression only.
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> * Disable vSAN deduplication and compression.
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> * Enable or disable vSAN data-in-transit encryption.
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## Set VMware vSAN TRIM/UNMAP
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1. Provide the required values or change the default values according to the following table. Then select **Run**.
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|**Field**|**Value**|
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| Field | Value |
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| --- | --- |
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|**Name**| The cluster name as defined in vCenter Server. Comma delimit to target only certain clusters. (Blank targets all clusters.) |
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|**Enable**|`true` or `false`. |
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- Virtual machine hardware version 11 or later for Windows.
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- Virtual machine hardware version 13 or later for Linux.
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- The `disk.scsiUnmapAllowed` flag isn't set to `false`. The default is implied `true`. This setting can be used as a *stop switch* at the virtual machine level. You can use this setting if you want to disable this behavior on a per-VM basis and don't want to use in-guest configuration to disable this behavior. VMX file changes require a reboot to take effect.
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- The `disk.scsiUnmapAllowed` flag isn't set to `false`. The default is implied `true`. This setting can be used as a *stop switch* at the virtual machine level. You can use this setting if you want to disable this behavior on a per-VM basis and don't want to use in-guest configuration to disable this behavior. VMX file changes require a restart to take effect.
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- The guest operating system must be able to identify the virtual disk as *thin*.
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- After you enable a VM at a cluster level, it must be powered off, and then powered back on (a reboot is insufficient).
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- After you enable a VM at a cluster level, it must be turned off, and then turned back on. (A restart is insufficient.)
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For more information about how to reclaim space for Windows and Linux systems for TRIM/UNMAP to execute, see the following VMware articles:
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-[How to reclaim disk space](https://knowledge.broadcom.com/external/article/340005/reclaiming-disk-space-from-thin-provisio.html)
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1. Provide the required values or change the default values according to the following table. Then select **Run**.
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|**Field**|**Value**|
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| Field | Value |
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| --- | --- |
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|**Compression**|`true` or `false`. |
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|**Deduplication**|`true` or `false`. (When you enable deduplication, you enable both deduplication and compression.) |
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## Set VMware vSAN data-in-transit encryption
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Run the `Set-vSANDataInTransitEncryption` cmdlet to enable or disable data-in-transit encryption for all clusters or specified clusters of a software-defined data center (SDDC).
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> [!NOTE]
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1. Provide the required values or change the default values according to the following table. Then select **Run**.
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|**Field**|**Value**|
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| Field | Value |
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| --- | --- |
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|**ClusterName**| Name of the cluster. Leave blank if you're required to enable for the whole SDDC. Otherwise, enter a comma-separated list of names. |
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| **Enable** | Specify `true` or `false` to enable or disable the feature.
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