[DRBD-user] Local Asynchronous Replication

Felix Frank ff at mpexnet.de
Mon Jan 24 09:54:47 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.


On 01/21/2011 11:42 PM, Nick Couchman wrote:
> 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.

Hi,

what level of asynchrony do you need? And (out of curiosity) why?

Cheers,
Felix



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