[DRBD-user] Local Asynchronous Replication

Nick Couchman Nick.Couchman at seakr.com
Fri Jan 21 23:42:38 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.


I have a situation where I'd like to be able to use DRBD, but only
between two local block devices.  I'd like to present an iSCSI-based
disk to a host and replication a local block device to that iSCSI disk
asynchronously.  The Linux software RAID does not seem to support
asynchronous replication, and the target system that will present the
iSCSI block devices is a Solaris system using ZFS, so I cannot run DRBD
on this system.  So, is this possible - to just create a resource that
asynchronously replicates two block devices?

I realize that one way to do this would be to run two copies of DRBD on
a single system - one would point to the original disk and the other to
the iSCSI disk, but this seems sort of a kludgy way to accomplish this.
I'm not opposed, just looking for a slightly more elegant solution.

Thanks,
Nick



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