Are you CPU or disk-bound on the source or target servers? Even if you have
lots of CPUs, replication might be running on a single thread and just using
one CPU.

On Thu, Apr 26, 2018 at 02:46:24PM -0400, Zoltan Forray wrote:
> As we get deeper into Replication and my boss wants to use it more and more
> as an offsite recovery platform.
>
> As we try to reach "best practices" of replicating everything, we are
> finding this desire to be difficult if not impossible to achieve due to the
> resource demands.
>
> Total we want to eventually replicate is around 700TB from 5-source servers
> to 1-target server which is dedicated to replication.
>
> So the big question is, can this be done?
>
> We recently rebuilt the offsite target server to as big as we could afford
> ($38K).  It has 256GB of RAM.  64-threads of CPU. Storage is primarily
> 500TB of ISILON/NFS. Connectivity is via quad 10G (2-for IP traffic from
> source servers and 2-for ISILON/NFS).
>
> Yet we can only replicate around 3TB daily when we backup around 7TB.
>
> Looking for suggestions/thoughts/experiences?
>
> All boxes are RHEL Linux and 7.1.7.300
>
> --
> *Zoltan Forray*
> Spectrum Protect (p.k.a. TSM) Software & Hardware Administrator
> Xymon Monitor Administrator
> VMware Administrator
> Virginia Commonwealth University
> UCC/Office of Technology Services
> www.ucc.vcu.edu
> zforray AT vcu DOT edu - 804-828-4807
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-- Skylar Thompson (skylar2 AT u.washington DOT edu)
-- Genome Sciences Department, System Administrator
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