Thanks everyone for the helpful and detailed responses. Now that you confirmed that everything is fine with my FS, I'm all relaxed because I can for sure live with the output of df. On Mon, Sep 11, 2017 at 5:29 AM, Andrei Borzenkov <arvidjaar@xxxxxxxxx> wrote: > 10.09.2017 23:17, Dmitrii Tcvetkov пишет: >>>> Drive1 Drive2 Drive3 >>>> X X >>>> X X >>>> X X >>>> >>>> Where X is a chunk of raid1 block group. >>> >>> But this table clearly shows that adding third drive increases free >>> space by 50%. You need to reallocate data to actually make use of it, >>> but it was done in this case. >> >> It increases it but I don't see how this space is in any way useful >> unless data is in single profile. After full balance chunks will be >> spread over 3 devices, how it helps in raid1 data profile case? >> > A1 A2 => A1 A2 - => A1 A2 B1 => A1 A2 B1 > B1 B2 B1 B2 - - B2 - C1 B2 C2 > > It is raid1 profile on three disks fully utilizing them (assuming equal > sizes of course). Where "raid1" means - each data block has two copies > on different devices. -- 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
