Darren J Moffat wrote: > Does the ARC get flushed for a dataset when it is unmounted ?
Yes > What does change when a dataset is unmounted ? > Pretty much everything associated with the dataset should be evicted... its possible that some of the meta-data may hang around I suppose (I don't remember off-hand). > The context of the problem is this: > > create a pool, > provide the pool encryption key, > create a dataset with encryption turned on, > put data into that dataset > I see it getting encrypted and written to disk by zio_write, > zfs umount -a > zfs mount -a > I can read the data back - yeah!. > > However if I export the pool and then reimport it the mount fails with > an IO error (and yes I did remember to give the pool the key again). > > A little dtracing shows me that a zap_lookup of VERSION for the > encrypted dataset is returning EIO, that causes the mount to ultimately > fail. Could be that this meta data does not get evicted at unmount. > > -- > Darren J Moffat > _______________________________________________ > zfs-code mailing list > zfs-code at opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-code
