Hi folks! I've read a few posts talking about DRBD vs. VMFS3, but none seem to answer my question. May be someone can help. Here's the picture : I'm thinking of a primary/primary config, with ESXs on both sides. If hosted VMs do snapshots or make use of thin disks on both sides, corresponding files will grow step by step or should I say, block by block, each new block allocation being securized using SCSI reservations from the host running that VM. Now, guess 2 VMs on different sides of the replication chain make a new block request at the same time. What would happen ? I suppose SCSI reservations are not replicated by DRBD, therefore, each host will make its own reservation and potentially allow the same block to both VMs leading to corruption ? Has anyone already played with this kind of architecture ? Is primary/primary definitely a no-no for such architectures or is there some magic feature that can help me out build something safe ? Thanks by advance! Best regards, Pascal. -- View this message in context: http://old.nabble.com/DRBD-primary-primary-vs.-VMFS3---tp31315179p31315179.html Sent from the DRBD - User mailing list archive at Nabble.com.
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