Hi! Could use a little help. I'm a newb to DRDB-HA but understand the concepts
and am handy on the CLI. In fact, I found that the Secondary server has been
'disconnected' for over a month. These servers run only Zimbra at the moment
running on CentOS 5.5. I hope what I provide below is enough to get the ball
rolling.
Thank you in advance for any prompt help you may be able to offer today.
I inherited this system and after a physical move of the bare metal to a faster
connection at data center, drbd-ha seems to not connect and sync.
The internal LAN is working as I can ping the ports from each server to the
other. Bu t, it is spotty to be able to telnet in. The peer server, Zimbra2,
gets it here and there using 192.168.1.2 but the master, Zimbra1, I can never
get to work using the standard port, 'telnet 192.168.1.1 7788'
Despite that, Zimbra1 is st:Primary/Unknown and Zimbra2 is
st:Secondary/Unknown.
Since Zimbra2 has been drbd-ha offline for some time, I was advised by other on
IRC to discard the data before reconnecting.
Logged into Zimbra2 server and after disconnecting Zimbra2 (Secondary) using
'drbdadm disconnect repdata' I performed 'drbdadm -- --discard-my-data connect
repdata' but /proc/drbd on Zimbra2 still results in UpToDate.
I even tried stopping HA on Zimbra2 but that didn't make a difference either.
Any ideas? I want Zimbra1 (Primary) to populate Zimbra2 as it is the working
server with the most recent data.
Now, /dev/drbd0 exists on Zimbra2 but is not mounted that I can see. In order
to --discard-my-data, does the drive need to be mounted?
On Zimbra1 it is mounted like this:
/dev/drbd0 on /opt type ext3 (rw)
On Zimbra2 there is no record of it being mounted.
Here is /proc/drbd for Zimbra1:
@zimbra1 ~]# cat /proc/drbd
version: 8.0.13 (api:86/proto:86)
GIT-hash: ee3ad77563d2e87171a3da17cc002ddfd1677dbe build by
buildsvn@c5-x8664-build, 2008-10-03 10:12:56
0: cs:StandAlone st:Primary/Unknown ds:UpToDate/DUnknown r---
ns:0 nr:0 dw:1505899068 dr:1246861951 al:3145701 bm:3145590 lo:0 pe:0 ua:0 ap:0
resync: used:0/61 hits:0 misses:0 starving:0 dirty:0 changed:0
act_log: used:0/127 hits:353787267 misses:3888262 starving:1706 dirty:741251
changed:3145701
Here is /proc/drbd for Zimbra2:
@zimbra2 ~]# cat /proc/drbd
version: 8.0.13 (api:86/proto:86)
GIT-hash: ee3ad77563d2e87171a3da17cc002ddfd1677dbe build by
buildsvn@c5-x8664-build, 2008-10-03 10:12:56
0: cs:StandAlone st:Secondary/Unknown ds:UpToDate/DUnknown r---
ns:0 nr:0 dw:912 dr:41418 al:18 bm:62 lo:0 pe:0 ua:0 ap:0
resync: used:0/61 hits:0 misses:0 starving:0 dirty:0 changed:0
act_log: used:0/127 hits:210 misses:18 starving:0 dirty:0 changed:18
Also, here is /etc/drbd.conf if that helps.
@zimbra2 ~]# cat /etc/drbd.conf
global { usage-count no; }
resource repdata {
protocol C;
startup { wfc-timeout 0; degr-wfc-timeout 120; }
disk { on-io-error detach; }
syncer { rate 25M; }
on zimbra1.marininstitute.org {
device /dev/drbd0;
disk /dev/VolGroup01/LogVol01;
address 192.168.1.1:7788;
meta-disk internal;
}
on zimbra2.marininstitute.org {
device /dev/drbd0;
disk /dev/VolGroup00/LogVol00;
address 192.168.1.2:7788;
meta-disk internal;
}
}
Thank you in advance for any prompt help you may be able to offer today.
Bruce M. Wolfe, M.S.W., CIO
24 Belvedere St.
San Rafael, CA 94901
415/456.5692 x213 main
415/257.2493 office
415/456.0491 fax
KI6BSL ham
"He that falls in love with himself will have no rivals." - Benjamin Franklin
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