>On Wed, 2008-09-10 at 14:36 -0400, Maurice Volaski wrote: >> A disadvantage, however, is that Sun StorageTek Availability Suite >> (AVS), the DRBD equivalent in OpenSolaris, is much less flexible than >> DRBD. For example, AVS is intended to replicate in one direction, >> from a primary to a secondary, whereas DRBD can switch on the fly. >> See >> http://www.opensolaris.org/jive/thread.jspa?threadID=68881&tstart=30 >> for details on this. > >I would be curious to see production environments "switching" direction >on the fly at that low level... Usually some top-level brain does that >in context of HA fail-over and so on.
By switching on the fly, I mean if the primary services are taken down and then brought up on the secondary, the direction of synchronization gets reversed. That's not possible with AVS because... >well, AVS actually does reverse synchronization and does it very good. It's a one-time operation that "re-reverses" once it completes. -- Maurice Volaski, [EMAIL PROTECTED] Computing Support, Rose F. Kennedy Center Albert Einstein College of Medicine of Yeshiva University _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
