Re: [RFC][PATCH] btrfs: allow balancing to dup with multi-device

2016-03-24 Thread David Sterba
On Wed, Mar 23, 2016 at 02:22:59PM -0400, Austin S. Hemmelgarn wrote: > Currently, we don't allow the user to try and rebalance to a dup profile > on a multi-device filesystem. In most cases, this is a perfectly sensible > restriction as raid1 uses the same amount of space and provides better >

[RFC][PATCH] btrfs: allow balancing to dup with multi-device

2016-03-23 Thread Austin S. Hemmelgarn
Currently, we don't allow the user to try and rebalance to a dup profile on a multi-device filesystem. In most cases, this is a perfectly sensible restriction as raid1 uses the same amount of space and provides better protection. However, when reshaping a multi-device filesystem down to a single