<div dir="ltr">Sure! I will bring this to our weekly meeting when more feedbacks are gathered : )<br><br><div class="gmail_quote"><div dir="ltr">Jay S Bryant <<a href="mailto:jungleboyj@gmail.com">jungleboyj@gmail.com</a>>于2018年3月21日周三 下午1:05写道:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
  
    
  
  <div text="#000000" bgcolor="#FFFFFF">
    <p>Tommy,</p>
    <p>I am still not sure that this is going to move the team to a
      different decision.</p>
    <p>Now that you have more information you can propose it as a topic
      in tomorrow's team meeting if you wish.</p></div><div text="#000000" bgcolor="#FFFFFF">
    <p>Jay<br>
    </p></div><div text="#000000" bgcolor="#FFFFFF">
    <br>
    <div class="m_7354136074764456283moz-cite-prefix">On 3/20/2018 8:54 PM, TommyLike Hu
      wrote:<br>
    </div>
    <blockquote type="cite">
      <div dir="ltr"><br>
        Thanks Jay,
        <div>    The question is AWS doesn't have the concept of backup
          and their snapshot is incremental backup internally and will
          be finllay stored into S3 which is more sound like backup for
          us. Our snapshot can not be used across AZ.</div>
        <div><br>
          <div class="gmail_quote">
            <div dir="ltr">Jay S Bryant <<a href="mailto:jungleboyj@gmail.com" target="_blank">jungleboyj@gmail.com</a>>于2018年3月21日周三
              上午4:13写道:<br>
            </div>
            <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
              <div text="#000000" bgcolor="#FFFFFF">
                <p><br>
                </p>
                <br>
                <div class="m_7354136074764456283m_5143543434139739463moz-cite-prefix">On
                  3/19/2018 10:55 PM, TommyLike Hu wrote:<br>
                </div>
              </div>
              <div text="#000000" bgcolor="#FFFFFF">
                <blockquote type="cite">
                  <div dir="ltr">
                    <div>Now Cinder can transfer volume (with or without
                      snapshots) to different projects,  and this make
                      it possbile to transfer data across tenant via
                      volume or image. Recently we had a conversation
                      with our customer from Germany, they mentioned
                      they are more pleased if we can support transfer
                      data accross tenant via backup not image or
                      volume, and these below are some of their
                      concerns:</div>
                    <div><br>
                    </div>
                    <div>1. There is a use case that they would like to
                      deploy their develop/test/product systems in the
                      same region but within different tenants, so they
                      have the requirment to share/transfer data across
                      tenants.</div>
                    <div><br>
                    </div>
                    <div>2. Users are more willing to use backups to
                      secure/store their volume data since backup
                      feature is more advanced in product openstack
                      version (incremental backups/periodic
                      backups/etc.).</div>
                    <div><br>
                    </div>
                    <div>3. Volume transfer is not a valid option as
                      it's in AZ and it's a complicated process if we
                      would like to share the data to multiple projects
                      (keep copy in all the tenants).</div>
                    <div><br>
                    </div>
                    <div>4. Most of the users would like to use image
                      for bootable volume only and share volume data via
                      image means the users have to maintain lots of
                      image copies when volume backup changed as well as
                      the whole system needs to differentiate bootable
                      images and none bootable images, most important,
                      we can not restore volume data via image now.</div>
                    <div><br>
                    </div>
                    <div>5. The easiest way for this seems to support
                      sharing backup to different projects, the owner
                      project have the full authority while shared
                      projects only can view/read the backups.</div>
                    <div><br>
                    </div>
                    <div>6. AWS has the similar concept, share snapshot.
                      We can share it by modify the snapshot's create
                      volume permissions [1].</div>
                    <div><br>
                    </div>
                    <div>Looking forward to any like or dislike or
                      suggestion on this idea accroding to my feature
                      proposal experience:)</div>
                    <div><br>
                    </div>
                    <div><br>
                    </div>
                    <div>Thanks</div>
                    <div>TommyLike</div>
                    <div><br>
                    </div>
                    <div><br>
                    </div>
                    <div>[1]: <a href="https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-modifying-snapshot-permissions.html" target="_blank">https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-modifying-snapshot-permissions.html</a></div>
                  </div>
                  <br>
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              </div>
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                <blockquote type="cite">
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                Tommy,<br>
                <br>
                As discussed at the PTG, this still sounds like improper
                usage of Backup.  Happy to hear input from others but I
                am having trouble getting my head around it.<br>
                <br>
                The idea of sharing a snapshot, as you mention AWS
                supports sounds like it could be a more sensible
                approach.  Why are you not proposing that?<br>
                <br>
                Jay<br>
                <br>
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