raul45
Contributor
Contributor

NFS mount with async on Vcenter server 6.7

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Hi,

I am using Vcenter 6.7 and  I want to mount an NFS datastore with Async option.

Any help will be appreciated.

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Nawals
Expert
Expert

The Vmware best practice and performance guides don't say anything about "async" for NFS as they don't want people doing it.

Please review the link below:

https://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/techpaper/vmware-perfbest-practice...

https://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/techpaper/vmware-nfs-bestpractices...

Using NFS in Vmware does use "sync" for all I/O transactions but iSCSI is able to do better client VM directed I/O for "sync" and "direct I/O" requests and VMware only forces sync operations for datastore metadata and locking operations.

NKS Please Mark Helpful/correct if my answer resolve your query.

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scott28tt
VMware Employee
VMware Employee

You want the vCenter Server to access the NFS mount, or the ESXi hosts that the vCenter Server manages to access the NFS mount?

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Nawals
Expert
Expert

The Vmware best practice and performance guides don't say anything about "async" for NFS as they don't want people doing it.

Please review the link below:

https://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/techpaper/vmware-perfbest-practice...

https://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/techpaper/vmware-nfs-bestpractices...

Using NFS in Vmware does use "sync" for all I/O transactions but iSCSI is able to do better client VM directed I/O for "sync" and "direct I/O" requests and VMware only forces sync operations for datastore metadata and locking operations.

NKS Please Mark Helpful/correct if my answer resolve your query.

View solution in original post

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raul45
Contributor
Contributor

Thanks for much for answer!

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