Backup server placement

[Calypso]

Hi,

We have two geographically dispersed sites(Site A and Site B). Both sites run active workloads and backups need to occur in both sites. Both sites will have an EMC Data Domain and backup data replication will occur between Data Domains and not through Veeam.
Now the question is do I deploy a backup server in each site or use only one backup server and two proxies/gateway servers connected to their local Data Domains?

Two backup server sounds like the simplest solution for me, if you loose one site A completely and you need to restore something in the other site from site A in site B you can just rescan the replicated repository to be able to restore the workloads? Also enterprise manager can be used to manage both.

Alternative, not even sure if this is feasible, is one active backup server managing both sites deployed in site A with SQL data replicated between sites and an inactive backup server in site B. In the case where you loose the active backup server you can just bring the inactive backup server online and it`ll have access to all the data.

Any comments of the pros/cons of this?

Thanks,

[foggy]

Hi Oguh, both approaches are viable, it is just a matter of preference. With a single instance, you can replicate its configuration backup offsite to be able to quickly fire up the new instance there in case of DR and have all the configuration in place. In case you come up with an instance per site approach, keep in mind the fact that in case they share the same servers as proxy/repository, they will not be aware of each other in terms of the backup load assigned to them, so you need to control the number of concurrent tasks carefully.