Dell EMC CX3 Series, Руководство по установке и устранению неисправностей оборудования

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Cabling Your Cluster Hardware
Connecting a PowerEdge Cluster to Multiple Storage Systems
You can increase your cluster storage capacity by attaching multiple storage
systems to your cluster using a redundant switch fabric. Failover Clusters can
support configurations with multiple storage units attached to clustered
nodes. In this scenario, the Microsoft Cluster Service (MSCS) software can
fail over disk drives in any cluster-attached shared storage array between the
cluster nodes.
NOTE:
Throughout this document, MSCS is used to refer to either the Microsoft
Windows Server 2003 Cluster Service or the Microsoft Windows Server 2008
Failover Cluster Service.
When attaching multiple storage systems with your cluster, the following
rules apply:
• There is a maximum of four storage systems per cluster.
• The shared storage systems and firmware must be identical. Using
dissimilar storage systems and firmware for your shared storage is not
supported.
• MSCS is limited to 22 drive letters. Because drive letters A through D are
reserved for local disks, a maximum of 22 drive letters (E to Z) can be used
for your storage system disks.
• Windows Server 2003 supports mount points, allowing greater than 22
drives per cluster.
See "If you have Access Control enabled in Navisphere Manager, you must
create storage groups and assign LUNs to the proper host systems." on
page 53 for more information.
Figure 2-13 provides an example of cabling the cluster nodes to four
Dell|EMC storage systems. See "Implementing Zoning on a Fibre Channel
Switched Fabric" on page 42 for more information.