Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
I think you would need 8.3 and above for node stacking, also where is the
3rd node is it local or at a remote location.
As far as upgrading goes.
I would have thought this would be the best method.
node1 = Primary
node2 = Secondary
1) Stop DRBD on node2 ( Secondary ). Upgrade DRBD. Start DRBD on node2.
Wait for DRBD to resync data
2) Once data has synced. Demote node1( Current Primary ) to secondary.
Bring up node2 as your new Primary.
2) node1 is now a secondary, so your safe to stop DRBD, upgrade DBRD,
bring back online as secondary and wait for resync to occur.....
From:
"Adam Taylor" <adam.taylor at wml.co.nz>
To:
<drbd-user at lists.linbit.com>
Date:
20/07/2009 22:09
Subject:
[DRBD-user] Adding a third drbd node
Sent by:
drbd-user-bounces at lists.linbit.com
Hi Everyone,
I currently have a two node cluster using heartbeat in a Primary/Secondary
mode. My question is:
Is it possible to add a third node as a DR server (act as a second
secondary) using drbd version 8.2.5? Or will I have to upgrade to 8.3?
These two servers are live at the moment and would rather not have to be
taking them offline for a version upgrade.
However, if this is the case, is there a "sure-fire" way to upgrading
versions?
Any help would be much appreciated.
Cheers,
___________________________________________________
Adam Taylor | Engineer | WML Software
Unit 3c | 14-22 Triton Drive | Albany | Auckland
P. +64 9 477 4555 | F. +64 9 478 6926
DDI. +64 9 477 6375 | MOB. +64 21 621 519
E. adam.taylor at wml.co.nz
W. www.wml.co.nz | www.compose.co.nz
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