Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hi all,
I've got a sort-of working DRBD setup. If everything is when I reboot,
then the disks come up without a problem. If I have an issue, though,
such as a misconfigured firewall on one machine but not the other, or
anything else that disrupts communication, I end up with this:
[ben at frontend1 etc]$ cat /proc/drbd
version: 8.0.5 (api:86/proto:86)
SVN Revision: 3011 build by ben at frontend2.scholar, 2007-08-24 11:35:47
0: cs:WFBitMapT st:Secondary/Secondary ds:UpToDate/UpToDate C r---
ns:0 nr:0 dw:0 dr:0 al:0 bm:0 lo:0 pe:0 ua:0 ap:0
resync: used:0/31 hits:0 misses:0 starving:0 dirty:0 changed:0
act_log: used:0/907 hits:0 misses:0 starving:0 dirty:0 changed:0
[ben at frontend2 sysconfig]$ cat /proc/drbd
version: 8.0.5 (api:86/proto:86)
SVN Revision: 3011 build by ben at frontend2.scholar, 2007-08-24 11:35:47
0: cs:WFBitMapS st:Secondary/Secondary ds:UpToDate/UpToDate C r---
ns:0 nr:0 dw:0 dr:0 al:0 bm:10 lo:0 pe:0 ua:0 ap:0
resync: used:0/31 hits:0 misses:0 starving:0 dirty:0 changed:0
act_log: used:0/907 hits:0 misses:0 starving:0 dirty:0 changed:0
No amount of fiddling with the module (which stays busy and can't be
removed) or anything else seems to fix the problem. I simply have to
reboot both machines, and at the same time-if I bring one up and it
finds the other in this state, it immediately re-enters this locked
state. It doesn't seem to happen once things are running, and it even
recovers from a true failure correctly in my heartbeat testing, but if
it hits this state it's just screwed. It's happened to me a couple of
times because I'm changing lots of configurations, but it's still pretty
worrisome.
Any ideas on how to fix this problem without taking down a machine?
System info:
Dell 2950 with Perc 5i
RHEL5
Linux backend2.scholar 2.6.18-8.1.8.el5 #1 SMP Mon Jun 25 17:06:07 EDT
2007 x86_64 x86_64 x86_64 GNU/Linux
DRBD 8.0.5
Thanks,
Ben Lavender
Systems Design
MC Dean Europe - Stuttgart
+49(0)711 849 50179
+1 703 803 6231 x 7179
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