[DRBD-user] Local Asynchronous Replication

Nick Couchman Nick.Couchman at seakr.com
Mon Jan 24 18:15:00 CET 2011

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.

> Ah, I see. So you want to retain Read-Only access even when iSCSI is
> disconnected? That's problematic, as DRBD will probably detect possible
> split-brains and refuse to resume synchronization. You can of course
> discard your local backing device upon each reconnect, but that will
> trigger (I think) a full sync from the iSCSI device.

No, I want full r/w access even when iSCSI is disconnected, then a
resynchronization (full resync is fine) when the iSCSI volume is back.
I'm not going to be using this in a cluster scenario at all, so DRBD
need not worry about split-brain situations, as nothing will be writing
to the volume on the iSCSI side besides DRBD.  Essentially, the iSCSI
(backup) side will be a read-only copy used for restoring files and DR
recovery scenarios.


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