[Bug 218866] Extra /dev/sd.. entries for a fake raid when more than 15 partitions

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=218866

--- Comment #11 from Marc Debruyne (marc_debruyne@telenet.be) ---
(In reply to Phillip Susi from comment #9)
> This is no bug.  Fake raids are, well, fake.  The kernel sees both
> individual disks and since they are mirror images of each other, both have
> the same partitions on them.
> 
> The dmraid utility can be used to recognize the fake raid metadata and
> configure the kernel device mapper to access the raid, and with the -Z
> switch, it will remove the partitions from the underlying individual disks
> from the kernel's view.

dmraid is not used; mdadm is used

********************

cat /proc/mdstat

--------

Personalities : [raid1] [raid6] [raid5] [raid4] 
md125 : active raid5 sdh1[4] sdb1[2] sdi1[6] sda1[0] sdc1[1] sdf1[3]
      87890972160 blocks super 1.2 level 5, 512k chunk, algorithm 2 [6/6]
[UUUUUU]
      bitmap: 5/131 pages [20KB], 65536KB chunk

md126 : active raid1 sde[1] sdd[0]
      975585280 blocks super external:/md127/0 [2/2] [UU]

md127 : inactive sde[1](S) sdd[0](S)
      2354608 blocks super external:ddf

unused devices: <none>

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