Martin, I'm actually running a dual-active Samba server with a shared GFS2 file-system (block-replicated by DR:BD). I'm also (ab)using it for an Apache/Tomcat installation with session replication in Tomcat through a shared file-system.
Of course, all this is balanced using RR-DNS, and when one node fails, the cluster resource (IP address) is taken over by the surviving node to re-establish service (at somewhat lower performance). Did a kitten just die? Robert Campbell On 1-2-2012 15:38, Martin Gerhard Loschwitz wrote: > Am 01.02.12 14:59, schrieb Felix Frank: > >> On 02/01/2012 02:44 PM, Martin Gerhard Loschwitz wrote: >> >>> Every time somebody recommends to use Pacemaker with >>> OCFS2, god kills a kitten. >>> >> News to me. Care to elaborate? Better alternatives? >> > For a company I used to work for, I wrote a very extensive guide on > why using DRBD in Dual-Primary mode is not a good idea (let alone > using OCFS2 or GFS2 on top of it). I can't link to it here directly, > but googling for "DRBD Dual-Primary think twice" should get you > going. > > Long story short: Don't look for "better alternatives" to OCFS2 or > GFS2; instead, get rid of the requirement to run a shared FS. > > The ability to do live-migration is one of the very few real-world > use-cases I have ever seen where using DRBD in Dual-Primary mode is > justified. > > Best regards > Martin > > _______________________________________________________________________________________________ Help save paper! Do you really need to print this email? Aan de inhoud van dit bericht kunnen alleen rechten ten opzichte van Morpho B.V. worden ontleend, indien zij door rechtsgeldig ondertekende stukken worden ondersteund. De informatie in dit e-mailbericht is van vertrouwelijke aard en alleen bedoeld voor gebruik door geadresseerde. Als u een bericht onbedoeld heeft ontvangen, wordt u verzocht de verzender hiervan in kennis te stellen en het bericht te vernietigen zonder te vermenigvuldigen of andersoortig te gebruiken. The contents of this electronic mail message are only binding upon Morpho B.V. if the contents of the message are accompanied by a lawfully recognized type of signature. The contents of this electronic mail message are privileged and confidential and are intended only for use by the addressee. If you have received this electronic mail message by error, please notify the sender and delete the message without reproducing it and using it in any way. # " Ce courriel et les documents qui lui sont joints peuvent contenir des informations confidentielles ou ayant un caractère privé. S'ils ne vous sont pas destinés, nous vous signalons qu'il est strictement interdit de les divulguer, de les reproduire ou d'en utiliser de quelque manière que ce soit le contenu. Si ce message vous a été transmis par erreur, merci d'en informer l'expéditeur et de supprimer immédiatement de votre système informatique ce courriel ainsi que tous les documents qui y sont attachés." ****** " This e-mail and any attached documents may contain confidential or proprietary information. If you are not the intended recipient, you are notified that any dissemination, copying of this e-mail and any attachments thereto or use of their contents by any means whatsoever is strictly prohibited. If you have received this e-mail in error, please advise the sender immediately and delete this e-mail and all attached documents from your computer system." # _______________________________________________ drbd-user mailing list [email protected] http://lists.linbit.com/mailman/listinfo/drbd-user
