[DRBD-user] DRBD Sync stalls

Adam Taylor adam.taylor at wml.co.nz
Wed Jul 15 21:29:30 CEST 2009

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

I have ran into a similar problem with Symantec Backup Agent running on the
same network and for some reason killing the tcp/ip stack.  More than likely
this issue will be related to the network. Any chance of sharing your
Adam Taylor  |  Engineer  |  WML Software
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WML Software


From: drbd-user-bounces at lists.linbit.com
[mailto:drbd-user-bounces at lists.linbit.com] On Behalf Of ??????? ????
Sent: Wednesday, July 15, 2009 11:40 AM
To: 'drbd-user at lists.linbit.com'
Subject: [DRBD-user] DRBD Sync stalls


Does anybody have an idea how should I troubleshoot the following problem?


My peers were connecting and syncronizyng without any problem until network
guys introduced a firewall between the peers
(this is all in my lab but I wanted to emulate remote site replication)

As you can see the peers are still connecting OK and synchronization starts
but in a few second it stalls and remains in this state for ever.


What is even worse is that this introduces some kind of kernel problem as
with time the machine becomes inaccessible through ssh.

Ping is alive but no telnet can be established to any of the active service


Please help with any troubleshooting suggestions or ideas!






Every 2.0s: cat /proc/drbd
Tue Jul 14 16:30:00 2009


version: 8.0.13 (api:86/proto:86)

GIT-hash: ee3ad77563d2e87171a3da17cc002ddfd1677dbe build by
buildsvn at c5-x8664-build, 2008-10-03 10:12:56

 0: cs:SyncSource st:Primary/Secondary ds:UpToDate/Inconsistent C r---

    ns:178836 nr:0 dw:745036 dr:2388809 al:5441 bm:5364 lo:1 pe:2056 ua:251

        [>....................] sync'ed:  0.1% (183823/183825)M


        resync: used:1/61 hits:721 misses:4 starving:0 dirty:0 changed:4

        act_log: used:4/127 hits:180818 misses:5996 starving:0 dirty:555


10: cs:Unconfigured



Boyn, Dimitar G.
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