Clustering in SQL 2008/Win2k8

Windows 2003 still supports SCSI arrays for clustering, Server 2008 has removed support for using a SCSI array for clustering servers.  When using Server 2008 to cluster SQL Server systems, you’ll need to use a FC array and FC SAN or an array that can present its disks over iSCSI to the servers.  This can be problematic when you’re trying to cluster under Hyper-V or VMware and don’t have a hardware-based iSCSI solution.  However you can use ‘Rocket Division SOftware’s StarWind iSCSI Target’ for Windows or ‘Nimbus Data Systems MySAN’ or ‘Open-Source openfiler’ to present local disks from a third server as iSCSI disks to your cluster.  You should use caution when using a software iSCSI target as performance from these software packages will depend on the hardware behimd them and the network configuration.

Credits: Denny Cherry in latest SQLmag.


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