AzCopy – Support for Read Access Geo-Redundant account

AzCopy – Support for Read Access Geo-Redundant account

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We are glad to announce that AzCopy new version V2.3 has been released at aka.ms/AzCopy.This new version will take advantage of the new Read Access Geo Redundant Storage (RA-GRS) functionality and include support for reading Geo-Redundant account’s data in the secondary region. For RA-GRS, please find details at Windows Azure Storage Redundancy Options and Read Access Geo Redundant Storage.

After enabling RA-GRS in the azure portal, if the primary endpoint is “myaccount.<service>.core.windows.net”, the secondary endpoint will be “myaccount-secondary.<service>.core.windows.net”.

Here are the samples of AzCopy reading blobs from the secondary region (Attention: You cannot copy data to the secondary region).

  • Download blobs from an RA-GRS account’s secondary endpoint to your local disk.

            AzCopy https://myaccount-secondary.blob.core.windows.net/mynewcontainer/ d:\test\ /sourcekey:key /s

  • Copy blob from an RA-GRS account’s secondary endpoint to the primary endpoint.

            AzCopy https://myaccount-secondary.blob.core.windows.net/mynewcontainer/ https://myaccount.blob.core.windows.net/mybackupcontainer/ /sourcekey:key /destkey:key abc.txt

Furthermore, AzCopy V2.3 has made various performance improvements, and has been updated to use Azure Storage Client library v3.0.3.

Zhiming

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  • This is great! Is there a way to download a VHD which is running an Azure VM from the secondary storage, while the VM is running?

    Thanks!  

  • Hi David,

    You can create snapshots of your VHD, and download the snapshot from the secondary end point once they are there.

    Please add option /snapshot in your command line as below, then AzCopy will download the VHD together with all its snapshots to your local disk.

       AzCopy myaccount-secondary.blob.core.windows.net/mynewcontainer d:\test\ /sourcekey:key abc.vhd /snapshot

    Say you’ve already created three snapshots and all of them have been geo-replicated to secondary region, then your downloading from secondary end point may include below blobs.

      abc.vhd

      abc(2014-05-24 080757).vhd

      abc(2014-05-25 120657).vhd

      abc(2014-05-29 090521).vhd

    Zhiming

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