Perhaps this is being tracked as 6538021?
http://bugs.opensolaris.org/view_bug.do?bug_id=6538021
 -- richard

Bill Moloney wrote:
> This is a re-post of this issue ... I didn't get any replies to the previous
> post of 12/27 ... I'm hoping someone is back from holiday
> who may have some insight into this problem ... Bill
>
> when I remove a separate zil disk from a pool, the pool continues to function,
> logging synchronous writes to the disks in the pool. Status shows that the log
> disk has been removed, and everything seems to work fine until I export the
> pool. 
>
> After the pool has been exported (long after the log disk was removed
> and gigabytes of synchronous writes were performed successfully), 
> I am no longer able to
> import the pool. I get an error stating that a pool device cannot be found, 
> and importing the pool cannot succeed until the missing device (the separate
> zil log disk) is replaced in the system. 
>
> There is a bug filed by Neil Perrin:
> 6574286 "removing a slog doesn't work"
> regading the problem of not being able to remove a separate zil device from
> a pool, but no detail on the ramifications of just taking the device out of
> the JBOD. 
>
> Taking it out does not impact the immediate function of the pool,
> but the inability to re-import it after this event is a significant issue. 
> Has 
> anyone found a workaround for this problem ? I have data in a pool that
> I cannot import because the separate zil is no longer available to me.
>  
>  
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