Highly available Windows Server 2012 systems using shared, directly-attached storage can be built using either Storage Spaces or a validated clustered RAID controller.
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Option 1 ? Storage Spaces
You can build a highly available shared SAS system today using Storage Spaces.
Storage Spaces works well in a standalone PC, but it is also capable of working in a Windows Server Failover Clustering environment.?
For implementing Clustered Storage Spaces, you will need the following Windows Server 2012 certified hardware:
- Any SAS Host Bus Adapter or HBA (as long as it?s SAS and not a RAID controller, you should be fine)
- SAS JBODs or disk enclosures (listed under the ?Storage Spaces? category on the Server catalog)
- SAS disks (there?s a wide variety of those, including capacity HDDs, performance HDDs and SSDs)
You can find instructions on how to configure a Clustered Storage Space in Windows Server 2012 at http://blogs.msdn.com/b/clustering/archive/2012/06/02/10314262.aspx.
A good overview of Storage Spaces and its capabilities can be found at http://social.technet.microsoft.com/wiki/contents/articles/15198.storage-spaces-overview.aspx
There's also an excellent presentation from TechEd that covers Storage Spaces at http://channel9.msdn.com/Events/TechEd/NorthAmerica/2012/WSV315
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Option 2 ? Clustered RAID Controllers
The second option is to build a highly available shared storage system using RAID Controllers that are designed to work in a Windows Server Failover Cluster configuration.
The main distinction between these RAID controllers and the ones we used before is that they work in sets (typically a pair) and coordinate their actions against the shared disks.
Here are some examples:
- The HP StoreEasy 5000 cluster-in-a-box uses Clustered RAID controllers?that HP sources and certifies. You can find details at the HP StoreEasy product page.
- LSI is working on a Clustered RAID controller with Windows Server 2012 support. This new line of SAS RAID Controllers is scheduled for later this year. You can get details?on?availability dates from LSI.
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Both options work great for all kinds of Windows Server 2012 Clusters, including Hyper-V Clusters, SQL Server Clusters, Classic File Server Clusters and Scale-Out File Servers.
You can learn more about these solutions in this TechEd presentation: http://channel9.msdn.com/Events/TechEd/Europe/2012/WSV310
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