Introduction 21Cluster StorageTable 1-5 lists supported storage systems and the configuration requirementsfor the cluster nodes and stand-alone systems connected to the storagesystems.Table 1-5. Cluster Storage RequirementsStorageConfigurationRequirementSupported storage See the Platform Guide for your PowerEdge cluster solution onthe Dell Support website at support.dell.com.Cluster sharedstorageIf you are using either switch modules or pass-throughmodules to connect to network storage devices that areattached to external switches in a SAN or an IP SAN, see thePlatform Guide for your PowerEdge cluster solution located onthe Dell Support website at support.dell.com to determine themaximum number of supported storage systems.If you are using switch modules to connect to network storagedevices in an internal SAN or IP SAN without externalswitches, you can use a maximum of two supported storagesystems.If you are using pass-through modules to connect to storagedevices in a direct-attached configuration, you can use a singlesupported storage system.Multiple clustersand stand-alonesystemsNetwork storage systems that provide LUN masking orassignment functionality may be shared between multipleclusters or between clustered and stand-alone servers. Todetermine whether the configuration is supported, see thePlatform Guide for your PowerEdge cluster solution located onthe Dell Support website at support.dell.com.