Hi,
what is the maximum number of rbd devices that can be mapped on a
single host?
we recently did a test to mount a large number of rbd devices and
hit a wall around 230
with the following message
with 230 rbd devices already mapped, the next one yielded this.
Console output
wistor@wistor-002:~$ sudo rbd map test299
add failed: (16) Device or resource busy
dmesg
[77962.346749] register_blkdev: failed to get major for rbd229
Chris.
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