On 28 Mar 2014, at 22:04, Arnold Krille <[email protected]> wrote:
> On Fri, 28 Mar 2014 10:40:28 +0100 Bart Coninckx > <[email protected]> wrote: >> All, >> >> >> building a storage cluster which will offer SCST targets. These will >> be LVM based (nested LVM probably). In terms of performance, what is >> the most optimal strategy: one big DRBD device where the different >> Logical Volumes are installed on or a DRBD device per LV? If a resync >> needs to be done, the latter will probably better, as it allows us to >> choose which devices should be resynced first. > > I do have several drbd volumes instead of one big. Then you can > choose which ones to sync first. And if your volumes are on different > disks, the order can be defined to sync volumes from each disk one > after the other but volumes from different disks in parallel. That way > one can max out a 2x10G connection with three volumes from three disks > all reading/writing sequential, instead of the disk stepping in its own > way by reading from several volumes on the same disk while the other > disks are idle... > > And several drbd-volumes can fail-over individually. > > Have fun, > > Arnold > _______________________________________________ > drbd-user mailing list > [email protected] > http://lists.linbit.com/mailman/listinfo/drbd-user Sounds reasonably! Thank you for your input! BC _______________________________________________ drbd-user mailing list [email protected] http://lists.linbit.com/mailman/listinfo/drbd-user
