I setup a basic DRBD resource called vmpool1 (/dev/drbd0) that is using disk
/dev/sdc1 on server1/subnetA (primary) and server2/subnetB (secondary --
remote location).
But I want auto failover so I bought server3 to go in subnetA and want to
change this to a setup where server1 is primary, server3 is the new secondary
and server2 is changed to stacked. Due to the remote location I cannot simply
move server2 to subnetA and put server3 at subnetB.
Is there a way to do this live?
Is it as simple as doing on server2
drdbadm down vmpool1
/etc/init.d/drbd stop
drbdadm wipe-md vmpool1
Then editing the vmpool1 resource file in /etc/drbd.d/ on server1 to use
server3's IP instead of server2's, copying that to /etc/drbd.d/ on
server3 and on server3 running
drbdadm create-md vmpool1
/etc/init.d/drbd start
Then on server1 maybe doing
drbdsetup /dev/drbd0 primary -o
Then I would copy the new vmpool1 resource file to server2 and also create a
new resource file for vmpool1-U on all 3 servers that sets up server2 to use
its /dev/sdc1 as a stacked resource. Then on all 3 servers I would run
drbdadm up vmpool1-U
?
Thanks
---------------------------------------------------------------
Paul Raines http://help.nmr.mgh.harvard.edu
MGH/MIT/HMS Athinoula A. Martinos Center for Biomedical Imaging
149 (2301) 13th Street Charlestown, MA 02129 USA
The information in this e-mail is intended only for the person to whom it is
addressed. If you believe this e-mail was sent to you in error and the e-mail
contains patient information, please contact the Partners Compliance HelpLine at
http://www.partners.org/complianceline . If the e-mail was sent to you in error
but does not contain patient information, please contact the sender and properly
dispose of the e-mail.
_______________________________________________
drbd-user mailing list
[email protected]
http://lists.linbit.com/mailman/listinfo/drbd-user
