Can Exchange 2016 DB and logs drive be put on thin provisioned disks

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This topic contains 2 replies, has 3 voices, and was last updated by Avatar Ossian 2 weeks ago.

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    curious_7
    Participant
    #626884

    Exchange VMs are hosted on Vmware hosts and the underlying storage is all flash.
    Exchange server backups are taken at VMware level (snapshot based) and exchange DB level.
    We are considering putting exchange 2016 DB and log drives on thin provisioned disks.
    Is there any recommendation from Microsoft in regards to thin provisioning disks at Vmware level and exchange LUNs at storage array level?
    And are there any negative effects of doing this?

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    RicklesP
    Participant
    #626961

    A quick search with the ever-present Google gave me this link: https://technet.microsoft.com/en-us/library/jj619301(v=exchg.160).aspx

    Scroll down just past halfway, look for the section labelled “Exchange storage requirements”, 2nd bullet. That explains it pretty well–you can use dynamic virtual storage, but only in certain configurations. Overall, it’s best to NOT use thin-provisioned disks, because of Exchange expecting complete access with no delays for volume size changes as the volume is expanded and the format extended.

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    Ossian
    Moderator
    #627003

    FWIW, I have been running Exchange (<50 users) with VMs and dynamic disks for years, first 2010 and more recently 2016, without any obvious issues.

    It is, however, a very small deployment and not performance-critical

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