Re: [PATCH] pg_upgrade: support for btrfs copy-on-write clones

From: Andrew Dunstan <andrew(at)dunslane(dot)net>
To: Oskari Saarenmaa <os(at)ohmu(dot)fi>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: [PATCH] pg_upgrade: support for btrfs copy-on-write clones
Date: 2013-10-02 14:18:26
Message-ID: 524C2B32.6020602@dunslane.net
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On 10/01/2013 06:31 PM, Oskari Saarenmaa wrote:
> Add file cloning as an alternative data transfer method to pg_upgrade.
> Currently only btrfs is supported, but copy-on-write cloning is also
> available on at least ZFS. Cloning must be requested explicitly and if
> it isn't supported by the operating system or filesystem a fatal error
> is thrown.
>

So, just curious, why isn't ZFS supported? It's what I am more
interested in, at least.

cheers

andrew

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