[DRBD-user] 'Device minor not allocated' while creating new resource

Andreas Kurz andreas.kurz at linbit.com
Sun Jun 27 23:33:18 CEST 2010

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


On Sun, June 27, 2010 00:51, Keith Coleman wrote:
> On Fri, Jun 5, 2009 at 2:24 PM, Sam Howard
> <sam.howard at officepcsupport.com> wrote:
>
>> I have a similar setup (ubuntu 8.04 hosts, xen guests of various
>> flavors). I created 2 new LVs on each host, updated and pushed the
>> drbd.conf (snippet):
>> resource pd01-root {   device        /dev/drbd32;
>>   disk          /dev/datavg/pd01-root;
>>   meta-disk     /dev/datavg/drbd_log[32];
>>   on xen-80-31-00 {
>>     address    192.168.250.14:7732;
>>   }
>>   on xen-33-18-02 {
>>     address    192.168.250.12:7732;
>>   }
>> }
>> ======
>> "drbdadm create-md pd01-root" works on both hosts, "drbdadm up
>> pd01-root" and "drbdadm -- -o primary pd01-root" works on one of the
>> nodes, but the other node cannot "up" or even "connect" to the new
>> device. ======
>> root at xen-80-31-00:~# drbdsetup 32 net 192.168.250.14:7732
>> 192.168.250.12:7732 C --set-defaults --create-device
>> --allow-two-primaries
>> 32: Failure: (127) Device minor not allocated
>> ======
>> no messages in /var/log or dmesg to give a hint. "drbdadm status" shows:
>> <!-- resource minor="32" name="pd01-root" not available or not yet
>> created -->
>> which is expected. I've done the start/stop drbd, reboot, etc.
>> This is on DRBD 8.3.1, Xen 3.4.0, linux 2.6.18.8 (with XenSource
>> patches) -- same build on both hosts. What can I try next to get more
>> information for debugging this?
>
> I am having a similar problem on drbd 8.3.7. Two machines have been
> running happily for several weeks. One has 17 drbd resources, the other has
> 18. When I try to add a new resource on either machine
> drbdsetup fails but there is nothing reported in syslog, messages, dmesg,
> etc.
>
> host2:/etc/drbd.d# drbdsetup 34 disk /dev/vg/video /dev/vg/video
> internal --set-defaults --create-device 34: Failure: (127) Device minor not
> allocated
>
> Where can I find meaningful information regarding the failure?

man drbd.conf --> minor-count

Regards,
Andreas

>
>
>
> Keith Coleman
> _______________________________________________
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>
>
>





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