>>> Valentin Vidic <[email protected]> schrieb am 20.03.2019 um 19:00 in Nachricht <[email protected]>: > On Wed, Mar 20, 2019 at 01:47:56PM ‑0400, Digimer wrote: >> Not when DRBD is configured correctly. You sent 'fencing >> resource‑and‑stonith;' and set the appropriate fence handler. This tells >> DRBD to not proceed with a write while a node is in an unknown state >> (which happens when the node stops responding and is cleared on >> successful fence). > > The situation I had in mind is this: node1 is Primary and sends a write to > local disk and over the DRBD link. The network fails so the write is > successfull only on the local disk. node1 is than fenced and node2 takes > over but the disk have now diverged.
Actually it makes no difference to a non-clustered local disk: If the buffers are not flushed, data can get lost if there is a power failure. If you use sync writes, the data should be on disk, and I guess with DRBD the data should be on the remote site also. > > ‑‑ > Valentin > _______________________________________________ > Manage your subscription: > https://lists.clusterlabs.org/mailman/listinfo/users > > ClusterLabs home: https://www.clusterlabs.org/ _______________________________________________ Manage your subscription: https://lists.clusterlabs.org/mailman/listinfo/users ClusterLabs home: https://www.clusterlabs.org/
