Hi, On Mon, Aug 31, 2015 at 03:28:28PM +0300, Andrei Borzenkov wrote: > > > Отправлено с iPhone > > > 29 авг. 2015 г., в 21:51, Jorge Fábregas <[email protected]> > > написал(а): > > > >> On 08/29/2015 02:37 PM, Digimer wrote: > >> No need for clustered LVM, only the active node should see the PV. When > >> the passive takes over, after connecting to the PV, it should do a > >> pvscan -> vgscan -> lvscan before mounting the FS on the LV. > >> > >> Keep you cluster simple; remove everything not needed. > > > > Hi Digimer, > > > > It would be great if my cluster could communicate with the storage-array > > to make it "present" or "unpresent" LUNs based on the cluster conditions > > but I'm afraid that's not possible :) > > Just use SCSI-3 persistent reservations to grant exclusive access to a node > that has active resources. > > > So yes, these are LUNs that are > > visible on both nodes. > > > > I'm the one who asked you something regarding cLVM on IRC the other day > > (one of the many times you have helped me there) and I decided to go the > > cLVM/DLM route (because the LUNs are seen on both nodes) > > I do not quite understand what it gains you. How having LVs on both nodes is > different from having underlying raw devices?
There is not much use of a raw device if you cannot access it with LVM tools as part of a volume group. Thanks, Dejan > > > > but now I have > > my issues with this VG activation. > > > > Thanks. > > > > Regards, > > Jorge > > > > > > _______________________________________________ > > Users mailing list: [email protected] > > http://clusterlabs.org/mailman/listinfo/users > > > > Project Home: http://www.clusterlabs.org > > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf > > Bugs: http://bugs.clusterlabs.org > > _______________________________________________ > Users mailing list: [email protected] > http://clusterlabs.org/mailman/listinfo/users > > Project Home: http://www.clusterlabs.org > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf > Bugs: http://bugs.clusterlabs.org _______________________________________________ Users mailing list: [email protected] http://clusterlabs.org/mailman/listinfo/users Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org
