Dell EqualLogic SAN -- offsite nightly replication, RECOMMENDATION ?

I have three Dell EqualLogic SANs, one at each of my locations, doing nightly replication between each other, but they are getting fuller.

Who do you recommend for offsite block level nightly replication ?

Each SAN has about
•      1TB of LIVE data = 3TB total
•      5GB nightly block level changes = 15GB nightly total
finance_teacherAsked:
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kevinhsiehCommented:
I would recommend doing something else for replication. Is your data in VMs? Hyper-V and VMware replication is much more efficient. Replicating backups is another option. Windows can use DFS-R to replicate file changes. There are other products available as well to do replication.

You may want to look at other storage products that replicate much more efficiently, such as Nimble Storage.

In order to provide better assistance, I would really need to know more about the environment.

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