>Support confirmed that the amount of data replicated in a replnode command is the same, regardless of the protect pool command status.
I think that this is only in the statistics, not in the actual transfer on the wire. the replnode should not transmit actual data if the data was send by the protect storagepool command. Are you running enough (but not to many) parallel processes for the replicate node command so it can perform optimally? I'm using this setup for multiple customers and it worked fine for us so far. http://imgur.com/a/mT6ux On Thu, Sep 15, 2016 at 4:29 PM, Nixon, Charles D. (David) < cdni...@carilionclinic.org> wrote: > We opened a ticket related to long replication times in a container pool > after replication takes place, and got an answer that 'we can recreate your > problem but it is likely working as designed' even though it's contrary to > documentation. Any ideas would be appreciated. > > -Two TSM servers at 7.1.5 > -Single client going to a single container. Client backs up 12TB a night > and after dedupe/compression, we see a 1TB change rate (approximately). > -Once the backup is complete, we run a protect pool. It's expected that > this process will ship 1TB to the DR site. -Protect completes successfully. > -a replnode is issued against the node and TSM spends the next 4 hours > replicating data to the DR site > > Support confirmed that the amount of data replicated in a replnode command > is the same, regardless of the protect pool command status. However, the > documentation leads me to be that if you have already protected the pool, > the replnode should be a metadata only transfer. > > So while we are able to transfer and complete the processes, it seems to > 'cost' us quite a bit in both IO and WAN usage to do so using containers, > defeating the point of using containers to reduce replication costs. Any > ideas as to what is going on? > > --------------------------------------------------- > David Nixon > Storage Engineer II > Technology Services Group > Carilion Clinic > 451 Kimball Ave. > Roanoke, VA 24015 > Phone: 540-224-3903 > cdni...@carilionclinic.org > > Our mission: Improve the health of the communities we serve. > > ________________________________ > > Notice: The information and attachment(s) contained in this communication > are intended for the addressee only, and may be confidential and/or legally > privileged. If you have received this communication in error, please > contact the sender immediately, and delete this communication from any > computer or network system. Any interception, review, printing, copying, > re-transmission, dissemination, or other use of, or taking of any action > upon this information by persons or entities other than the intended > recipient is strictly prohibited by law and may subject them to criminal or > civil liability. Carilion Clinic shall not be liable for the improper > and/or incomplete transmission of the information contained in this > communication or for any delay in its receipt. >
