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3 Commits

Author SHA1 Message Date
David Sterba 1f5094bb5c btrfs-progs: add support for raid1c3 and raid1c4 
Add support for 3- and 4- copy variants of RAID1. This adds resiliency
against 2 or resp. 3 devices lost or damaged.

$ ./mkfs.btrfs -m raid1c4 -d raid1c3 /dev/sd[abcd]

Label:              (null)
UUID:               f1f988ab-6750-4bc2-957b-98a4ebe98631
Node size:          16384
Sector size:        4096
Filesystem size:    8.00GiB
Block group profiles:
  Data:             RAID1C3         273.06MiB
  Metadata:         RAID1C4         204.75MiB
  System:           RAID1C4           8.00MiB
SSD detected:       no
Incompat features:  extref, skinny-metadata, raid1c34
Number of devices:  4
Devices:
   ID        SIZE  PATH
    1     2.00GiB  /dev/sda
    2     2.00GiB  /dev/sdb
    3     2.00GiB  /dev/sdc
    4     2.00GiB  /dev/sdd

Signed-off-by: David Sterba <dsterba@suse.com>
 2019-11-22 19:09:50 +01:00
David Sterba c07960c8be btrfs-progs: move utils.[ch] to common/ 
Update include paths and remove some duplicates.

Signed-off-by: David Sterba <dsterba@suse.com>
 2019-07-03 20:49:04 +02:00
David Sterba 07ca08ffba btrfs-progs: move fsfeatures.[ch] to common/ 
Signed-off-by: David Sterba <dsterba@suse.com>
 2019-07-03 20:49:03 +02:00