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Re: [zfs-discuss] Downgrading a zpool

Subject: Re: [zfs-discuss] Downgrading a zpool
From: Ian Collins
Date: Thu, 06 Nov 2008 22:53:56 +1300
Chris Ridd wrote:
> I probably need to downgrade a machine from 10u5 to 10u3. The zpool on  
> u5 is a v4 pool, and AIUI 10u3 only supports up to v3 pools.
>
> Will this pool automatically import when I downgrade the OS?
>
>   
No you are out of luck.

> Assuming I'm not that lucky, can I use 10u5's zfs send to take a  
> backup of the filesystems, and zfs receive on 10u3 to restore them?
>
>   
Same again. You can't receive a stream sent from a newer pool version.

-- 
Ian.

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