[DRBD-user] cluster migration CEntOS 5.0 to CentOS 5.5 / Shared Storage to drbd

Martin Fuerstenau martin.fuerstenau at oce.com
Tue Nov 23 12:55:51 CET 2010

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


I am running a 2 node cluster (CentOS 5.0) for Nagios and Cacti.
Currently I am using a fibre channel connected shared storage. During an
upgrade (2nd node runs CentOS 5.5 now) I ran into a problem with my
fibre channel switch (i can't connect to the storage). Well - I had
planned to switch to drbd after my upgrade. 

And now my question:

Is it possible to establish drbd on one cluster node (so I can move
Nagios etc. to my 2nd node) and later on, after upgrading my 1st node,
expand drbd to my 1st node (unfortunately it is not possibe to use the
drbd83 packages with CentOS 5.0 without a kernel update)


Martin Fürstenau

Senior System Engineer • (OI12) • Océ Printing Systems GmbH
P.O. Box 1260, 85581 Poing • Siemensallee 2 • 85586 Poing • Germany
T +49 (0)8121 72 4684  F +49 (0)8121 72 4996
E martin.fuerstenau at oce.com

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