Always nice to see I've hit a real problem, and not just my being dumb.
-Gaylord
On 10/08/2013 01:46 PM, Gregory Farnum wrote:
I believe this is a result of how we used the kernel interfaces
(allocating a major device ID for each RBD volume), and some kernel
limits (only 8 bits for storing major device IDs, and some used for
other purposes). See http://tracker.ceph.com/issues/5048
I believe we have discussed not using a major device ID for each
mounted RBD volume, but I don't remember the details as they involved
kernel-fu beyond what I'm familiar with.
-Greg
Software Engineer #42 @ http://inktank.com | http://ceph.com
On Tue, Oct 8, 2013 at 10:19 AM, Gaylord Holder <gholder@xxxxxxxxxxxxx> wrote:
I'm testing how many rbds I can map on a single server.
I've created 10,000 rbds in the rbd pool, but I can only actually map 230.
Mapping the 230th one fails with:
rbd: add failed: (16) Device or resource busy
Is there a way to bump this up?
-Gaylord
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