Hi Team,
Some of our workloads doesn't support 'Always On' or have some limitations. We are planning to have Database mirroring as DR. SQL will be SQL 2014 SP1 Ent. edition.
At primary data center we will have 2 node SQL cluster and in DR we will have Database mirroring configured.
In primary data center we have shared storage for SQL Cluster and planning to have mount points for each SQL instance running on the cluster. I have few queries if someone can provide some inputs
- Is this a supported configuration ? i.e SQL Cluster running on windows failover clustering and top of that have a database mirroring? The whole idea is to provide HA in Main site and to have DR capability with Database mirroring in the environment.
- Since its a 2 node cluster in primary , which node do i need to use as a primary while configuring database mirroring between Main Datacenter and DR datacenter? or SQL Cluster network name will be used as primary server for database mirroring? Server placed in DR will be secondary server for Database Mirroring.
- Do i need 'witness server' in above scenario? what should be the services running on this witness server if required?
- Since we will have shared storage in Primary for cluster services, for each SQL instance , we will have mount point for eg. SCCM instance it will be I:\ as root and then Database path will be I:\Database (this will be suppose LUN1), and Logs path will be I:\Logs (this will be another LUN mounted to I: root suppose LUN2), now how should be the path requirements at the secondary server that will be placed at DR site? DR will not have shared storage/LUN. Do we need to have same drive letters at secondary server as of primary? so secondary server need to have I:\Database and I:\Logs to have database mirrored for SCCM?
We will have around 6 mount points for SQL Cluster (I,J,K....so on) , do we need to have same drive letters at DR secondary server as well?