[osdcmy] upgrading DRBD 8.2.6 to 8.3

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[osdcmy] upgrading DRBD 8.2.6 to 8.3

Umarzuki Mochlis
hi, following tutorial of configuring drbd for centos 5 from:

http://wiki.centos.org/HowTos/Ha-Drbd

in the middle of formatting the /dev/drbd0, i found out from:

http://www.howtoforge.com/drbd-8.3-third-node-replication-with-debian-etch

...that i actually need to have version 8.3 for 3 nodes (2 + 1 config,
2 active/primary, 1 standby/secondary)

anyone can share their experience upgrading from 8.2.6 (currently
configured 1 primary, 1 secondary) to 8.3 (2 primary,1 secondary) ?

the tricky part is, i also did not configure lvm2-cluster for both PVs
(2 LUNs, one for each primary nodes, but secondary supposed to see
both)

current drbd.conf
------------------------
global { usage-count no; }
resource repdata {
  protocol C;
  startup { wfc-timeout 0; degr-wfc-timeout     120; }
  disk { on-io-error detach; }
  net {  cram-hmac-alg "sha1"; shared-secret "pA$sW0rD"; }
  syncer { rate 10M; }
  on mailserver01.servers.com.my {
    device /dev/drbd0;
    disk /dev/Zimbra-DRC/mailserver01;
    address 192.168.1.100:7788;
    meta-disk internal;
  }
  on mailserver02.servers.com.my {
    device /dev/drbd0;
    disk /dev/Zimbra-DRC/mailserver02;
    address 192.168.1.200:7788;
    meta-disk internal;
  }
}

any thoughts/opinion?

--
Regards,

Umarzuki Mochlis
http://debmal.my

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