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devices: recognise rbd (ceph rados block device)

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Description stolen from linux d/b/rbd.c L3:
  rbd.c -- Export ceph rados objects as a Linux block device

16 partitions seem to make sense according to L90:
  #define RBD_SINGLE_MAJOR_PART_SHIFT 4

Running *scan -vvvvvvdddddd yields
  #filters/filter-type.c:28            /dev/rbd1p5: Skipping: Unrecognised LVM device type 252
  #filters/filter-persistent.c:131           filter caching bad /dev/rbd1p5
right now, and adding
  types = ["rbd", 252]
to /e/l/lvm.conf (with the matching "252 rbd" in /p/devices) works as a
per-machine fix:
  rbd1               252:16   0      1T  1 disk
  |-rbd1p1           252:17   0    243M  1 part
  |-rbd1p2           252:18   0      1K  1 part
  `-rbd1p5           252:21   0 1023.8G  1 part
    `-dev01--vg-root 253:0    0 1023.8G  0 lvm
but rbd is supported by upstream so it'd be nice to have it work OOB
This commit is contained in:
наб 2021-12-13 13:32:06 -06:00 committed by David Teigland
parent c28541eccd
commit 6a431eb242
1 changed files with 1 additions and 0 deletions
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lib/device/device-types.h
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@ -43,6 +43,7 @@ static const dev_known_type_t _dev_known_types[] = {
{"ubd", 16, "User-mode virtual block device"}, {"ubd", 16, "User-mode virtual block device"},
{"ataraid", 16, "ATA Raid"}, {"ataraid", 16, "ATA Raid"},
{"drbd", 16, "Distributed Replicated Block Device (DRBD)"}, {"drbd", 16, "Distributed Replicated Block Device (DRBD)"},
{"rbd", 16, "Ceph rados object as a Linux block device"},
{"emcpower", 16, "EMC Powerpath"}, {"emcpower", 16, "EMC Powerpath"},
{"power2", 16, "EMC Powerpath"}, {"power2", 16, "EMC Powerpath"},
{"i2o_block", 16, "i2o Block Disk"}, {"i2o_block", 16, "i2o Block Disk"},