On Jan 30, 2011, at 1:49 PM, Richard Elling wrote: > On Jan 30, 2011, at 11:19 AM, Stuart Anderson wrote: >> >> On Jan 29, 2011, at 10:00 PM, Richard Elling wrote: >> >>> On Jan 29, 2011, at 5:48 PM, stuart anderson wrote: >>> >>>> Is there a simple way to query zfs send binary objects for basic >>>> information such as: >>>> >>>> 1) What snapshot they represent? >>>> 2) When they where created? >>>> 3) Whether they are the result of an incremental send? >>>> 4) What the the baseline snapshot was, if applicable? >>>> 5) What ZFS version number they where made from? >>>> 6) Anything else that would be useful to keep them around as backup binary >>>> blobs >>>> on an archival system, e.g., SAM-QFS? >>> >>> zstreamdump has a -v option which will show header information. The >>> structure of >>> that documentation is only shown in the source, though. >> >> Thanks for the pointer. This has most of the information I am looking for. >> Do you know >> how to get zstreamdump to display whether it is parsing an incremental dump, >> and if so, >> what snapshot it is relative to? >> >> Put another way, given 2 zfs send binary blobs, can I determine if they are >> related >> without trying to restore them to a ZFS filesystem? > > Each incremental send stream has a "from" and a "to" Global Unique Identifier > (GUID) for > the snapshots. As send stream with many incremental snapshots will have many > of these > pairs.
Got it. That works. Thanks. -- Stuart Anderson ander...@ligo.caltech.edu http://www.ligo.caltech.edu/~anderson _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
