On Mon, 14 Mar 2016, CJ Keist wrote:

Thank you!. In this case I think I can do this as the server is basically retired now.

Take care since this would toast the disks for any other recovery attempt. The data may very well be available, especially if the file is small (since zfs typically writes 128k at a time). Recovery is easiest if the pool was a single disk or mirrored rather than raidzN.

There are only something like 20 transaction groups available to go back to and this might span only a few seconds to a 100 seconds worth of time. If the file was destroyed long before the problem was noticed, then this approach won't work.

Bob
--
Bob Friesenhahn
bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/
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