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Zumastor, nuova kernel patch per Ubuntu packages


Zumastor è un progetto ideato dai membri di Google per portare caratteristiche dello storage enterprise su Linux (online volume backup, multiple volume snapshots, remote volume replication, etc.).

Downloads

Debian packages and source tarballs are available for download via http at http://zumastor.org/downloads. The snapshots directory contains development snapshots of the trunk and releases contains well-tested, stable releases. The latest is 0.4-r999 and individual files are linked below.

Debian/Ubuntu Packages

Release dateRevisionDebian i386 binary packagemd5 checksum
30 Nov 2007999kernel-image-2.6.21.1-zumastor-r999_1.0_i386.debd07f9d805eb98df211a270952ae08bca
30 Nov 2007999kernel-headers-2.6.21.1-zumastor-r999_1.0_i386.deb6a6372771bb593964dd340b8c685de6d
30 Nov 2007999zumastor_0.4-r999_i386.debac76e2d9d994c584f36efa19007b16d4
30 Nov 2007999ddsnap_0.4-r999_i386.debc5a61dc02356ea75a9602ba674fbc1d1

Source Tarballs

Release dateRevisiontar.gzmd5 checksum
30 Nov 2007999zumastor_0.4-r999.tar.gz27601cbf64becb67e52d578566b8a083
30 Nov 2007999ddsnap_0.4-r999.tar.gzd19e6ea9681a8faac7004a5abd829d35

Downloading via svn is probably easier, as it gets the whole tree. For stable releases, use the 0.4 branch rather than the trunk.

Features
  • Point-in-time Snapshots
    • Adds snapshotting to any Linux filesystem, without re-formatting (ext3, xfs, reiser, etc)
    • Near-zero-cost, atomic block-device snapshots
    • Copy-on-write, sharing common data between multiple snapshots
    • Performance does not degrade with multiple snapshots
    • Provided via ddsnap kernel driver and userspace ddsnap_server daemon
  • Remote replication
    • Transmits delta between snapshots
    • Optional zlib (gzip) compression
    • Optional xdelta binary difference compression (experimental)
  • Simple command line interface - zumastor script
  • Integration with kerberized NFS kernel server to support exporting a replicated volume with snapshot rollover.

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