On Mon, Nov 20, 2017 at 9:50 AM, ST <smntov@xxxxxxxxx> wrote: > Hello, > > 1. is there a tool that I can use to test btrfs scrubbing? Namely I need > to "damage" a file, i.e. change it without changing its meta > information, so I can see how scrubbing performs... Is there something > like this? btrfs-corrupt-block.c It's part of btrfs-progs but many distributions do not include it by default, but is easy to build it stand alone. > 2. I want to use Ansible to set btrfs quota on a /home subvolume as say > 0.8*TotalCapacityOfRoot and then assign to it individual users' > subvolumes with certain (smaller) quatos. > 2.1 Is it OK to rely on ansible_facts? Does it has correct information > about btrfs-based "/" total capacity? > 2.2 If not, is there a raw command to get TotalCapacityOfRoot in -TB so > I can set it? Is there something like btrfs filesystem usage / -t > --device_size? to get only the total Device Size information? No idea how ansible is manipulating quotas on Btrfs. -- Chris Murphy -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
