VMware vSphere

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  • 1.  VMFS 6 datastore limit size

    Posted Jun 13, 2022 07:19 AM

    Dears, I created VMFS 6 datastore on Sphere Client version 7.0.2.00 and now its reaching 127 TB, but what I know the maximum size is 64 TB. Is this will affect the production? Also if the maximum size is 64 TB how its reaching 127 TB without showing any error?



  • 2.  RE: VMFS 6 datastore limit size

    Broadcom Employee
    Posted Jun 13, 2022 10:16 AM

    Well we don't support higher than 64TB, if you hit a problem than support will not help you until you solve the problem.



  • 3.  RE: VMFS 6 datastore limit size

    Posted Jun 13, 2022 10:56 AM

    127 TB ? - wow - that is the new record ...
    I have recovered data from a 73 tb datastore once - quite painful experience by the way.
    Are the VMs still ok ? - if yes - leave the sinking ship asap. Evacuate the VMs to other datastores if that is possible,
    If the VMs are already corrupt let me have a look via Teamviewer and send a message via skype.

    Ulli

     



  • 4.  RE: VMFS 6 datastore limit size

    Posted Jun 14, 2022 07:20 PM

    Just a quick question. Is it really the datastore which has this size, or does it show that value as the provisioned space.

    André



  • 5.  RE: VMFS 6 datastore limit size

    Posted Jun 16, 2022 04:30 PM

    Andre - in the case that I have seen the 73 tb was the real size - not just the provisioned size.
    We can assume that the 64tb limit is just a recommendation.
    Unfortunately I never had the chance to really examine how the size was possible in the first place - after I recovered the data we purged everything and had to rebuild from scratch as soon as possible.

    Ulli



  • 6.  RE: VMFS 6 datastore limit size

    Broadcom Employee
    Posted Jun 17, 2022 09:20 AM

    It is not a recommendation, it is the limit to which things have been tested. It is a support and product limit / requirement.



  • 7.  RE: VMFS 6 datastore limit size

    Posted Jun 17, 2022 12:47 PM

     
    If it is a product limitation then how is it possible to create VMFS-volumes larger than 64TB ?
    From my limited experience with those illegal large volumes I can say that they behave odd.
    Thats why I would suggest to leave the sinking ship as soon as possible - that is if the vmdks are still copyable.

    Ulli



  • 8.  RE: VMFS 6 datastore limit size

    Broadcom Employee
    Posted Jun 20, 2022 08:09 AM

    No idea why the product allows you to go higher. I am not part of that team.