9000-final.html

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   5 <h1>In summary</h1>
   6
   7 <ul>
   8 <li> qcow2 images with dirty bitmaps can do change block tracking.
   9 <li> NBD protocol exposing those bitmaps opens possibilities.
  10 <li> Libvirt aids incremental backup across backing chains.
  11 <li> Expect more use cases as more software plays with incremental backups.
  12 </ul>
  13
  14 <h2>Get it</h2>
  15
  16 <ul>
  17   <li> qemu &ge; 5.1
  18     <a href="https://qemu.org/">https://qemu.org</a> plus patches:
  19     <ul>
  20       <li>block-dirty-bitmap-populate <a href="https://lists.gnu.org/archive/html/qemu-devel/2020-09/msg00978.html">https://lists.gnu.org/archive/html/qemu-devel/2020-09/msg00978.html</a></li>
  21       <li>more contexts in
  22         qemu-nbd <a href="https://lists.gnu.org/archive/html/qemu-devel/2020-10/msg02708.html">https://lists.gnu.org/archive/html/qemu-devel/2020-10/msg02708.html</a></li>
  23   </ul></li>
  24   <li> libnbd &ge; 1.5.4
  25     <a href="https://github.com/libguestfs/libnbd">https://github.com/libguestfs/libnbd</a>
  26     plus patches:
  27     <ul><li>honor qemu-nbd -A <a href="https://www.redhat.com/archives/libguestfs/2020-October/msg00077.html">https://www.redhat.com/archives/libguestfs/2020-October/msg00077.html</a></li></ul>
  28   </li>
  29   <li> libvirt &ge; 6.7.0
  30     <a href="https://libvirt.org">https://libvirt.org</a>
  31   <li> This talk: <a href="https://repo.or.cz/eblake-techtalks.git">https://repo.or.cz/eblake-techtalks.git</a></li>
  32   <li> Presentation software: Tech Talk PSE 1.2</li>
  33 </ul>
  34
  35 <h2>Any Questions?</h2>