[zfs-discuss] cannot destroy dataset is busy

Dirk Jakobsmeier dirk.jakobsmeier at wige.com
Wed May 4 01:44:57 EDT 2016


we've got two fileservers here, older zfs version (0.6.3) and from time to time have locked zfs that can't be destroyed. Ended nfs, samba, lsof nothing, fuser nothing, ....

Found several informations about kernel is sometimes locking it, only reboot would help.

Locking forward on any information on this issue.

On Tue, May 03, 2016 at 02:18:37PM +0000, ML mail via zfs-discuss wrote:
> Hello,
> I am running ZoL on Debian 8 and am using ZFS lvols for my Xen instances. Unfortunately I have the issue that upon a rename of my VPS disk and shutdown of the VPS I can not delete the zvol unless I reboot the server.
> Here is an example:
> sudo zfs destroy -f data/a4ec44a2-5f81-406e-8e82-cfa5d96d6998.disk0_data_replaced-1462283549
> cannot destroy 'data/a4ec44a2-5f81-406e-8e82-cfa5d96d6998.disk0_data_replaced-1462283549': dataset is busy
> There are no snapshots on that volume and I already tried zfs unmount, release, etc. Nothing works... 
> Does anyone have an idea what else I can try or why it is still busy?
> Regards
> ML
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