VMware vSphere

 View Only

  • 1.  RDM as DR for Physical Server

    Posted Aug 10, 2017 04:45 PM

    Hello,

    I have a MS SQL server running on physical server, with database stored in a SAN storage. For the DR site, the MS SQL server is preferred to be a VMware VM. By leverage storage replication, the database can be replicated to DR site in storage level. Is it possible to use RDM to map that to a VM in DR site directly?

    Any comment, idea or suggestion are welcome.

    Thanks,

    Tony



  • 2.  RE: RDM as DR for Physical Server

    Posted Aug 10, 2017 05:01 PM

    I'd basically say yes, that should work.

    You may however need to make the replica writable (from the storage level) on the target site, before it can be used.

    André



  • 3.  RE: RDM as DR for Physical Server

    Posted Aug 10, 2017 05:13 PM

    Thanks Andre!

    For this scenario, does RDM need to be physical compatibility mode?

    One more question, is physical RDM read/write behaviour to a LUN same as a physical server? For example, may I remap a LUN from a VM (physical RDM) to another physical server?



  • 4.  RE: RDM as DR for Physical Server

    Posted Aug 10, 2017 05:36 PM

    RDM's (virtual or physical mode) use the guest's native file system, i.e. the LUN contents are the same no matter whether it is presented to a physical, or a virtual server..

    There may be situations where physical vs. virtual mode matters (e.g. for MSCS), but that's not related to the filesystem/data on the LUN.

    André