This Blog will provide information about running SAP applications on SQL Server and Windows. The Blog is written by folks of Microsoft who are working with SAP and SQL Server for more than a decade.
This is the first publication starting a series of blogs about High Availability of SAP NetWeaver in virtualized environments running on Windows Server 2012 Hyper-V.
Part 1 gives an introduction and a brief overview (see attached document):
- Introduction- Windows Server 2012 Hyper-V- Basic WS2012 Hyper-V HA Scenarios 1. Partial : virtualizing application servers / dialog instances only and keeping the database as well as message server and ERS on bare-metal. This is the easiest way to start with virtualization in a SAP landscape. No specific HA configuration is needed for application servers / dialog instances. It’s handled by redundancy. One just has to make sure that there are enough of them running on different physical servers.
2. Low : rely on storage only (e.g. RAID ) / backup 3. Medium : accept downtime due to HA only on host level 4. High : HA on host level + application level inside VMs 5. Ultra : HA across data centers or fire safety zones 6. Ultra+ : business continuity -> adding disaster recovery in 3rd remote DCMore blogs with technical implementation details regarding specific HA scenarios will follow in the future.
Nice and useful information covered.
When is the next part coming out?
unfortunately this will take a little bit. I am in contact with hardware vendors to discuss this. To provide high quality information it's necessary to try things out at least in a lab environment before talking about the topic. Right now I have e.g. no access to a metro cluster spanning two data centers.
There are already articles out there describing WS2012 Hyper-V like these three examples :
But these articles are not SAP specific. I am working on it.
Very good article
Excellent timing as we are just about ready to embark on such a project on VMWare! Hopefully your work will translate to VMWare as well. Thanks!