[DRBD-user] dual primary: drbd 8.3.7

Bas van Oosterum bas at ichthusict.org
Fri Oct 29 18:12:05 CEST 2010


Hello all,

i have some problems using drbd in dual primary mode. 

System 1: debian with  2.6.18-6-amd64 kernel
System 2: ununtu with 2.6.32-24-generic kernel

both systems a self compiled drbd version 8.3.7

Running in primary / secondary mode works fine: disk replication ok, no
errors

I switch to dual primary mode using the standard manual.

adding allow-two-primaries; to the net section on both systems
adding become-primary-on both; to the startup section

Run drbdadm disconnect resource on both nodes.
Execute drbdadm connect resource on both nodes.

Execute drbdadm primary resource on both nodes

on both nodes the next logging:

Oct 29 17:51:44 1kronieken kernel: block drbd0: conn( StandAlone ->
Unconnected )
Oct 29 17:51:44 1kronieken kernel: block drbd0: Starting receiver thread
(from drbd0_worker [28848])
Oct 29 17:51:44 1kronieken kernel: block drbd0: receiver (re)started
Oct 29 17:51:44 1kronieken kernel: block drbd0: conn( Unconnected ->
WFConnection )
Oct 29 17:51:49 1kronieken kernel: block drbd0: Handshake successful: Agreed
network protocol version 91
Oct 29 17:51:49 1kronieken kernel: block drbd0: conn( WFConnection ->
WFReportParams )
Oct 29 17:51:49 1kronieken kernel: block drbd0: Starting asender thread
(from drbd0_receiver [30420])
Oct 29 17:51:49 1kronieken kernel: block drbd0: incompatible after-sb-0pri
settings
Oct 29 17:51:49 1kronieken kernel: block drbd0: conn( WFReportParams ->
Disconnecting )
Oct 29 17:51:49 1kronieken kernel: block drbd0: error receiving
ReportProtocol, l: 25!
Oct 29 17:51:49 1kronieken kernel: block drbd0: asender terminated
Oct 29 17:51:49 1kronieken kernel: block drbd0: Terminating asender thread
Oct 29 17:51:49 1kronieken kernel: block drbd0: Connection closed
Oct 29 17:51:49 1kronieken kernel: block drbd0: conn( Disconnecting ->
StandAlone )
Oct 29 17:51:49 1kronieken kernel: block drbd0: receiver terminated
Oct 29 17:51:49 1kronieken kernel: block drbd0: Terminating receiver thread
Oct 29 17:52:25 1kronieken kernel: block drbd0: role( Secondary -> Primary )
Oct 29 17:52:26 1kronieken kernel: block drbd0: Creating new current UUID

and the same status:

cat /proc/drbd
version: 8.3.7 (api:88/proto:86-91)
GIT-hash: ea9e28dbff98e331a62bcbcc63a6135808fe2917 build by root at 1kronieken,
2010-10-18 15:07:45
 0: cs:StandAlone ro:Primary/Unknown ds:UpToDate/DUnknown   r----
    ns:0 nr:0 dw:290406324 dr:8 al:0 bm:17725 lo:0 pe:0 ua:0 ap:0 ep:1 wo:b
oos:0

whats wrong?

kind regards,

Bas

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