[nycbug-talk] large scale zfs backup howto

Miles Nordin carton at Ivy.NET
Thu Jul 9 16:13:43 EDT 2009


>>>>> "mg" == Max Gribov <max at neuropunks.org> writes:

    mg> http://forums.freebsd.org/showthread.php?t=3689

very nice.

btw among many details I see he has used --inplace.  --inplace is
important for rsync/ZFS when the destination is a snapshotted ZFS and
the files being backed up are large ones that change in the middle
like .vmdk/.vdi/.db.  By defauly rsync sends only changes over the
wire, but when it WRITES the destination it does the copy/fsync/rename
dance which will use more space in the ZFS snapshot/clone tree than
--inplace.  for the restore onto ext3/ufs --inplace should make no
difference.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 304 bytes
Desc: not available
URL: <http://lists.nycbug.org/pipermail/talk/attachments/20090709/4e7701d6/attachment.bin>


More information about the talk mailing list