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Subject: UnionsFS/whiteout on ZFS
References: <b3be741b-c2c0-7a4f-382a-e864e7c64262@gjunka.com>
To: freebsd-questions@freebsd.org
From: Grzegorz Junka <list1@gjunka.com>
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Date: Wed, 17 Jul 2019 03:42:39 +0100
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Hello,

With the ZFS on FreeBSD moving to ZoL, does anyone know what's the 
current status of supporting UnionFS on ZFS? Last time I checked FreeBSD 
implementation lacked the "whiteout" feature required to properly 
support deleting files in upper layers. Does OpenZFS or ZoL provide any 
updates to properly supporting UnionFS on ZFS?

Thanks

GrzegorzJ