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VMFS File Sharing Limits increased to 32

Duncan Epping · Nov 6, 2012 ·

I was reading this white paper about VMware View 5.1 and VMFS File Locking today. It mentions the 8 host cluster limitation for VMware View with regards to linked clones and points to VMFS file sharing limits as the cause for this. While this is true in a way, VMware View 5.1 is limited to 8 host clusters for linked clones on VMFS Datastores, the explanation doesn’t cover all details or reflect the current state of vSphere / VMFS. (Although there is a fair bit of details in there about VMFS prior to vSphere 5.1.)

What the paper doesn’t mention is that in vSphere 5.1 this “file sharing limit” has been increased from 8 to 32 for VMFS Datastores. Cormac Hogan wrote about this a while ago. So to be clear, VMFS is fully capable today of sharing a file with 32 hosts in a cluster. VMware View doesn’t support that yet unfortunately, but for instance VMware vCloud Director 5.1 does support it today.

I still suggest reading the white paper, as it does help getting a better understanding of VMFS and View internals!

Related

Server, Storage Storage, vcd, vcloud director, view, vmfs

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Comments

  1. John says

    6 November, 2012 at 12:30

    Hi Duncan,

    off topic questions: Are the Whitepaper of VMware also in other formats available? Like .epub or only as PDF.
    For your Metro Cluster whitepaper I found the epub but for other whitepapers on the vmware site not.

    Saluti,
    John

    • Duncan Epping says

      6 November, 2012 at 13:01

      Unfortunately not every team produces them in multiple formats. I will provide this feedback internally though as I personally also prefer epub or mobi.

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About the author

Duncan Epping is a Chief Technologist in the Office of CTO of the Cloud Platform BU at VMware. He is a VCDX (# 007), the author of the "vSAN Deep Dive", the “vSphere Clustering Technical Deep Dive” series, and the host of the "Unexplored Territory" podcast.

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