Hi Rasto, I played around with the MC and it is really a promising integrative approach for managing a DRBD and Pacemaker Cluster. For now it is really nice for demonstration purposes like detaching the primary with failover.
What I am missing is a resource cleanup (crm resource cleanup <resource name>), is this function in your release plan? Thx, Martin Rasto Levrinc <rasto.levr...@linbit.com> wrote on 19.03.2010 11:07:39: > [image removed] > > [Pacemaker] DRBD Management Console 0.7.0 > > Rasto Levrinc > > to: > > drbd-mc, drbd-announce, pacemaker, linux-ha > > 19.03.2010 11:09 > > Please respond to pacemaker > > Hi, > > This is the next DRBD-MC beta release 0.7.0. DRBD-MC, that is also a > Pacemaker GUI, is a Java application that helps to configure > DRBD/Pacemaker/Corosync/Heartbeat clusters. It is compatible with Heartbeat > 2.1.3 to the Pacemaker 1.0.8 with both available communication layers and > DRBD 8. > > In this release resource defaults were added. This is one of the missing > features, that normal people would use, I think. You'll find it in next to > the global options if you cluster software supports it. > > The great new feature are the different operating modes and advanced/not > advanced modes. Depending on the operating mode, the input fields and menus > are shown, hidden, enabled or disabled. For example an administrator that > does not configure the cluster, can quickly find what he needs, not to worry > removing or changing something he shouldn't. You can start the DRBD-MC with > maximum operating mode that is allowed for the user in the whole application > and change to the lesser modes on the fly. Of course it can be easily > circumvented so this is not a security feature, but... > > Disabling and hiding of widgets, menus and whole panels should fit nicely > with the upcoming ACLs, as soon as they figure out how to do it. > > Till then, the new operating modes make the configuration and administration > of a the cluster much easier, faster and almost enjoyable. > > There are currently following "Operating Modes": > > Read-Only (cmd option --ro): > read-only access is granted, you can view the cluster, add and remove > clusters to and from your DRBD MC, but you cannot change anything on the > cluster. This is somewhat equivalent to watching crm_mon, but way more > informative. Additionally you can start VNC Viewer to work with Virtual > Machines. > > Operator (--op): > you can do the basic tasks like stop, start and migrate resources and put > nodes to and out of standby, but also resolve DRBD split-brains for example. > All configuration options are hidden. This is, what it seems, about the > functionality that Hawk is going to have, but without operations on DRBD and > VMs. > > Administrator (--admin): > this level of access can create, configure, reconfigure and destroy, as well > as operate the whole cluster, but many most of the options are hidden. This > is a default operating mode. > > Administrator (--admin)/ Advanced: > here are the options, that are seldom needed and/or I am not even sure what > they do. > > Another but hidden operating mode is a God mode. This is useful, as the name > suggest, only for development and for testing. > > http://oss.linbit.com/drbd-mc/img/drbd-mc-0.7.0.png > > You can get DRBD MC here: > > http://www.drbd.org/mc/management-console/ > http://oss.linbit.com/drbd-mc/DMC-0.7.0.jar > http://oss.linbit.com/drbd-mc/drbd-mc-0.7.0.tar.gz > > You can start it with help of Java Web-Start or you can download it and > start it with "java -Xmx512m -jar DMC-0.7.0.jar" command. Make sure you use > the Java from SUN. The openjdk seems to work fine by some time now, but it > seems to run DRBD MC much slower than the original Java. > > Rasto Levrinc > > Here is the changelog: > * Removing of DRBD resources was fixed. > * VNC viewer menu in the cluster view was fixed. > * stonith-timeout and priority stonith attributes were added. > * stonith_ prefix for stonith devices in their ids is used. > * When group is stopped, it is indicated in the cluster view. > * "master" and "slave" target-roles for master slave resources were added. > * All missing meta-attributes for groups and clones were added. > * Advisory values from status, meta-data and validate-all operations are not > used anymore. > * Some global CRM parameters, that didn't have defaults, were fixed. > * Different operating modes were implemented. > * Terminal frame is started as collapsed now. > * Parsing of operation defaults was added. > * Resource defaults were added. > * Metal look-and-feel is forced so that it works on Macs. > * DRBD status after start is not delayed after start-up. > * GUI helper perl script got a version to its file name, so that different > versions of DRBD-MC can be used at the same time on one cluster. > * Smoother and faster start-up, when there are many resources. > > -- > : Dipl-Ing Rastislav Levrinc > : DRBD-MC http://www.drbd.org/mc/management-console/ > : DRBD/HA support and consulting http://www.linbit.com/ > DRBD(R) and LINBIT(R) are registered trademarks of LINBIT, Austria. > > > _______________________________________________ > Pacemaker mailing list > Pacemaker@oss.clusterlabs.org > http://oss.clusterlabs.org/mailman/listinfo/pacemaker InterComponentWare AG: Vorstand: Peter Kirschbauer (Vors.), Jörg Stadler / Aufsichtsratsvors.: Prof. Dr. Christof Hettich Firmensitz: 69190 Walldorf, Industriestraße 41 / AG Mannheim HRB 351761 / USt.-IdNr.: DE 198388516
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