[DRBD-user] Moving a live DRBD setup to a new version?

Cameron Smith velvetpixel at gmail.com
Tue Jan 18 00:45:40 CET 2011

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.

Well looking further online it seems the two versions are compatible!
Can anybody here confirm that please?

Now my main two questions are:

1) Will having different size partitions between nodes cause an issue?
(my meta-data is on a separate partition and not set as internal)

2) After bringing up my resource on the new node do I then run:

*drbdadm -- --overwrite-data-of-peer primary resource*

ON THE OLD PRIMARY NODE? This is where the data is live and the /data
partition is mounted.

I want to make sure I don't kill my live site and it's data!!! :)


On Mon, Jan 17, 2011 at 2:26 PM, Cameron Smith <velvetpixel at gmail.com>wrote:

> I have DRBD 8.0.16-5.el5.centos installed and primary and secondary running
> fine on a two node system.
> We needed to add more storage so we took the secondary node down rebuilt
> the array, reinstalled the OS and are reinstalling services. At the point of
> reinstalling DRBD I am seeing that CentOS 5.5 wants me to install the drbd82
> package rather than drbd package.
> Can I install the drbd82 and kmod-drbd82 package and configure it to become
> a secondary to the old primary node running the old DRBD version to get the
> data to the larger array, make the new set up primary and then rebuild old
> primary to match new or will I have an issue with the two versions of DRBD
> correctly syncing data?
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