zfs discuss - May 2009 - how to reliably determine what is locking up my zvol?

-bash-3.2# zpool export exchbk
cannot remove device links for ''exchbk/exchbk-2'': dataset is
busy

this is a zvol used for a comstar iscsi backend:

-bash-3.2# stmfadm list-lu -v
LU Name: 600144F0EAC0090000004A0A4F410001
    Operational Status: Offline
    Provider Name     : sbd
    Alias             : /dev/zvol/rdsk/exchbk/exchbk-1
    View Entry Count  : 1
LU Name: 600144F0EAC0090000004A1307D20001
    Operational Status: Offline
    Provider Name     : sbd
    Alias             : /dev/zvol/rdsk/exchbk/exchbk-2
    View Entry Count  : 1

i offlined everything.  it''s driving me nuts.

deleting the lu''s via sbdadm solved this.  still wondering if there is
some reliable way to figure out what is using the zvol, though =)

On Wed, May 20, 2009 at 6:32 PM, milosz <mewash at gmail.com>
wrote:
> -bash-3.2# zpool export exchbk
> cannot remove device links for ''exchbk/exchbk-2'': dataset
is busy
>
> this is a zvol used for a comstar iscsi backend:
>
> -bash-3.2# stmfadm list-lu -v
> LU Name: 600144F0EAC0090000004A0A4F410001
> ? ?Operational Status: Offline
> ? ?Provider Name ? ? : sbd
> ? ?Alias ? ? ? ? ? ? : /dev/zvol/rdsk/exchbk/exchbk-1
> ? ?View Entry Count ?: 1
> LU Name: 600144F0EAC0090000004A1307D20001
> ? ?Operational Status: Offline
> ? ?Provider Name ? ? : sbd
> ? ?Alias ? ? ? ? ? ? : /dev/zvol/rdsk/exchbk/exchbk-2
> ? ?View Entry Count ?: 1
>
> i offlined everything. ?it''s driving me nuts.
>