Hi, >> Rather than explicitly rolling back, use "zfs receive -F".
But sometimes you don't want "all" the consequences of "-F" (e.g: my case), and the rollback will fix the problem and will not have side effects. Leal [ http://www.eall.com.br/blog ] 2012/7/26 Matthew Ahrens <[email protected]> > On Thu, Jul 26, 2012 at 10:53 AM, Marcelo Leal <[email protected]>wrote: > >> Hi, >> >> A common problem I have experienced (not identified the cause), in an >> incremental send/receive, was that the previous snapshot on the destination >> was not "zero" sized. >> I don't know why the previous snap was retaining some data (a few "K"s), >> if the live filesystem did not changed (believe me ;-). >> >> > The filesystem did change, perhaps due to atime modifications. "zfs > diff" can tell you what changed. You can prevent changes with "zfs set > readonly=on <filesystem>". > > > >> Well, to fix this specific case, you just need to do a "rollback" for >> the previous snapshot on the destination. >> The problem is that the incremental send does not complain on the >> begining of the process, but just after a random time. >> If you have a big incremental stream to send, can be really annoying. >> > > Rather than explicitly rolling back, use "zfs receive -F". This will > ensure that the receive does not fail even if you modify the filesystem in > the middle of the receive. As the manpage says: > > -F > > Force a rollback of the file system to the most > recent snapshot before performing the receive opera- > tion. If receiving an incremental replication stream > (for example, one generated by zfs send -R -[iI]), > destroy snapshots and file systems that do not exist > on the sending side. > > --matt > *illumos-discuss* | > Archives<https://www.listbox.com/member/archive/182180/=now> > <https://www.listbox.com/member/archive/rss/182180/21175783-cbc6ae69> | > Modify<https://www.listbox.com/member/?&;>Your Subscription > <http://www.listbox.com> > ------------------------------------------- illumos-discuss Archives: https://www.listbox.com/member/archive/182180/=now RSS Feed: https://www.listbox.com/member/archive/rss/182180/21175430-2e6923be Modify Your Subscription: https://www.listbox.com/member/?member_id=21175430&id_secret=21175430-6a77cda4 Powered by Listbox: http://www.listbox.com
