• This topic has 4 replies, 5 voices, and was last updated February 4, 2022 by Ben N.

Azure 8tb on data disks

  • Does zerto plan to increase the 8tb limit replicating data disks to Azure in the near future?  It appears to support 16tb to AWS.

    One of my customers also need this.  Any update from Zerto?


    This is a limitations of MS Azure



    max page blob size in 8TB this is used in the replication utilizing Zerto



    If our C drive is 3 TB and D drive  is 6 TB, would that be 2 page blobs for the VM of 3TB and 6TB and stay under the 8 TB page blob limit?

    Hello Danny,
    Ben from Zerto support.

    You are correct – Azure virtual machine disks are backed by page blobs. The maximum size for each page blob is 8 TiB.
    Given that this is not a Zerto limitation, Please refer to Azure documentation and support for more information, for example this article on Understanding block blobs, append blobs, and page blobs

    Thank you and have a nice day

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