Hello,
I'm (try to) running drbd-8.4.3 on a 3.4.54-8.el6.centos.alt.x86_64 kernel
(CentOS6-4 with xen support).
I set up my nodes with a resource tier0
resource tier0 {
protocol C;
startup {
degr-wfc-timeout 120;
}
net {
sndbuf-size 0;
}
disk {
on-io-error detach;
resync-rate 25M;
}
syncer {
rate 25M;
al-extents 3833;
verify-alg sha1;
}
meta-disk internal;
on ctb5 {
disk /dev/sda3;
device /dev/drbd1;
address 172.23.10.1:7799;
}
on ctb6 {
disk /dev/sda3;
device /dev/drbd1;
address 172.23.10.2:7799;
}
Here is the sequence of commands and status after I zeroed out the partition
### Load module, device creation and "drbdadm up $resource" went ok, leading to
the Connected state below
[root@ctb5 ~]# modprobe drbd
[root@ctb5 ~]# drbdadm create-md tier0
Writing meta data...
initializing activity log
NOT initializing bitmap
New drbd meta data block successfully created.
success
[root@ctb5 ~]# cat /proc/drbd
version: 8.4.3 (api:1/proto:86-101)
GIT-hash: 89a294209144b68adb3ee85a73221f964d3ee515 build by root@ctb5,
2013-08-18 15:58:37
1: cs:Connected ro:Secondary/Secondary ds:Inconsistent/Inconsistent C r-----
ns:0 nr:0 dw:0 dr:0 al:0 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f oos:221273604
########
A this point, I declared ctb5 as the primary node:
[root@ctb5 ~]# drbdadm primary --force tier0
[root@ctb5 ~]# cat /proc/drbd
version: 8.4.3 (api:1/proto:86-101)
GIT-hash: 89a294209144b68adb3ee85a73221f964d3ee515 build by root@ctb5,
2013-08-18 15:58:37
1: cs:SyncSource ro:Primary/Secondary ds:UpToDate/Inconsistent C r---n-
ns:84 nr:0 dw:0 dr:3736 al:0 bm:0 lo:0 pe:1 ua:3 ap:0 ep:1 wo:f
oos:221273604
[>....................] sync'ed: 0.1% (216084/216084)M
finish: 307:19:28 speed: 0 (0) K/sec
The other node (ctb6) is now aware that this node (ctb5) is primary:
[root@ctb6 drbd-8.4.3]# cat /proc/drbd
version: 8.4.3 (api:1/proto:86-101)
GIT-hash: 89a294209144b68adb3ee85a73221f964d3ee515 build by root@ctb6,
2013-08-17 13:13:16
1: cs:SyncTarget ro:Secondary/Primary ds:Inconsistent/UpToDate C r-----
ns:0 nr:0 dw:0 dr:0 al:0 bm:0 lo:0 pe:3 ua:0 ap:0 ep:1 wo:f oos:221273604
[>....................] sync'ed: 0.1% (216084/216084)M
finish: 3073:14:40 speed: 0 (0) want: 0 K/sec
but nothing is ever written to disk on the secondary node (speed is 0). And
there is "want: 0 K". Why?
At last, the loop dialog between the two nodes
:
drbdsetup events 1
1376836259 ST 1,tier0[0] { cs:SyncSource ro:Primary/Secondary
ds:UpToDate/Inconsistent r--- }
278 ST-prev 1,tier0[0] { cs:SyncSource ro:Primary/Secondary
ds:UpToDate/Inconsistent r--- }
/* long pause here, then */
278 ST-new 1,tier0[0] { cs:NetworkFailure ro:Primary/Unknown
ds:UpToDate/Inconsistent r--- }
278 ST 1,tier0[0] { cs:NetworkFailure ro:Primary/Unknown
ds:UpToDate/Inconsistent r--- }
279 ST-prev 1,tier0[0] { cs:NetworkFailure ro:Primary/Unknown
ds:UpToDate/Inconsistent r--- }
279 ST-new 1,tier0[0] { cs:Unconnected ro:Primary/Unknown
ds:UpToDate/Inconsistent r--- }
279 ST 1,tier0[0] { cs:WFConnection ro:Primary/Unknown ds:UpToDate/Inconsistent
r--- }
280 ST-prev 1,tier0[0] { cs:Unconnected ro:Primary/Unknown
ds:UpToDate/Inconsistent r--- }
280 ST-new 1,tier0[0] { cs:WFConnection ro:Primary/Unknown
ds:UpToDate/Inconsistent r--- }
280 ST 1,tier0[0] { cs:WFConnection ro:Primary/Unknown ds:UpToDate/Inconsistent
r--- }
281 ST-prev 1,tier0[0] { cs:WFConnection ro:Primary/Unknown
ds:UpToDate/Inconsistent r--- }
281 ST-new 1,tier0[0] { cs:WFReportParams ro:Primary/Unknown
ds:UpToDate/Inconsistent r--- }
281 ST 1,tier0[0] { cs:WFReportParams ro:Primary/Unknown
ds:UpToDate/Inconsistent r--- }
282 ST-prev 1,tier0[0] { cs:WFReportParams ro:Primary/Unknown
ds:UpToDate/Inconsistent r--- }
282 ST-new 1,tier0[0] { cs:WFBitMapS ro:Primary/Secondary
ds:UpToDate/Inconsistent r--- }
282 ST 1,tier0[0] { cs:WFBitMapS ro:Primary/Secondary ds:UpToDate/Inconsistent
r--- }
283 UH 1,tier0[0] before-resync-source
284 UH-post 1,tier0[0] before-resync-source 0x0000
285 ST-prev 1,tier0[0] { cs:WFBitMapS ro:Primary/Secondary
ds:UpToDate/Inconsistent r--- }
285 ST-new 1,tier0[0] { cs:SyncSource ro:Primary/Secondary
ds:UpToDate/Inconsistent r--- }
285 ST 1,tier0[0] { cs:SyncSource ro:Primary/Secondary ds:UpToDate/Inconsistent
r--- }
/* another long pause... */
I used a 8.3 conf file for 8.4. Drbd never complained about anything, so why
doesn't it start syncing?
Hope someone can help me, thanks.
Massimiliano
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