Maximum allowed latency for synchronous replication

Is there some kind of specification for the maximum allowed latency for synchronous replication?

We want to implement a NetApp MetroCluster across two datacenters. Now we have to specify the parameters for the fibre-connection between the two locations.
kurthvAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Duncan MeyersCommented:
You need this document: http://media.netapp.com/documents/tr-3548.pdf

And the critical information is:
"Stretch MetroCluster can support a maximum of 500 meters between nodes at a speed of 2Gbps. Fabric MetroCluster, through the use of Fibre Channel switches, extends this distance to 100km at the same speed. At 4Gbps speeds, these distances are roughly cut in half unless using the Brocade 300, 5000, or 5100, which leaves this maximum distance at 100km". You'll need latency to be less than 5mS or you'll have problems.

You'll need Brocade distance extension licenses if the distance is greater than 10kM
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
kurthvAuthor Commented:
Good answer :-)
0
Duncan MeyersCommented:
Thanks! Glad I could help.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Storage

From novice to tech pro — start learning today.