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Date:      Thu, 02 Dec 2010 11:45:22 +0000
From:      a.smith@ukgrid.net
To:        freebsd-fs@freebsd.org
Subject:   spurious ZFS "dataset does not exist" errors
Message-ID:  <20101202114522.16601wx7crv5zhz4@webmail2.ukgrid.net>

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Hi,

   I have been setting up a new ZFS pool to which I am replicate via  
ZFS send/receive a (raw) volume from another pool. After creating the  
duplicate volume in the new pool and having tested that it works (it  
does) I exported the ZFS pool and it gives me the following errors:

# zpool export nas1bkp
cannot open 'nas1bkp/iscsi-cctvp3': dataset does not exist
cannot open 'nas1bkp/iscsi-cctvp2': dataset does not exist
cannot open 'nas1bkp/iscsi-cctvp1': dataset does not exist

Its quite right, those datasets don't exist. But why is it even trying  
to touch something that doesn't and has never existed. Devices that  
actually exist are shown here:

# zfs list
NAME                 USED  AVAIL  REFER  MOUNTPOINT
nas1                3.19T  2.15T   648M  /nas1
nas1/cctv           2.53M  2.15T  2.53M  /nas1/cctv
nas1/iscsi-cctv     3.19T  2.65T  2.65T  -
nas1/zfssend        28.4K  50.0G  28.4K  /nas1/zfssend
nas1bkp             3.19T  2.15T  28.4K  /nas1bkp
nas1bkp/iscsi-cctv  3.19T  2.65T  2.65T  -
nas1bkp/zfsrecv     26.9K  50.0G  26.9K  /nas1bkp/zfsrecv


Anyone any idea whats going on? Spurious errors make me nervous!

thanks Andy.







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