Dell CX4 Troubleshooting Guide - Page 43
Using Zoning in SAN Configurations Containing Multiple Hosts, Using Worldwide Port Name Zoning
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Zoning automatically and transparently enforces access of information to the zone devices. More than one PowerEdge cluster configuration can share Dell/EMC storage system(s) in a switched fabric using Fibre Channel switch zoning and with Access Control enabled. By using Fibre Channel switches to implement zoning, you can segment the SANs to isolate heterogeneous servers and storage systems from each other. Using Zoning in SAN Configurations Containing Multiple Hosts Using the combination of zoning and Access Control in SAN configurations containing multiple hosts, you can restrict server access to specific volumes on a shared storage system by preventing the hosts from discovering a storage volume that belongs to another host. This configuration allows multiple clustered or nonclustered hosts to share a storage system. Using Worldwide Port Name Zoning PowerEdge cluster configurations support worldwide port name zoning. A worldwide name (WWN) is a unique numeric identifier assigned to Fibre Channel interfaces, such as HBA ports, storage processor (SP) ports, and Fibre Channel to SCSI bridges or storage network controllers (SNCs). A WWN consists of an 8-byte hexadecimal number with each byte separated by a colon. For example, 10:00:00:60:69:00:00:8a is a valid WWN. Using WWN port name zoning allows you to move cables between switch ports within the fabric without having to update the zones. Table 3-1 provides a list of WWN identifiers that you can find in the Dell/EMC cluster environment. Table 3-1. Port Worldwide Names in a SAN Environment Identifier xx:xx:00:60:69:xx:xx:xx xx:xx:xx:00:88:xx:xx:xx 50:06:01:6x:xx:xx:xx:xx xx:xx:00:00:C9:xx:xx:xx xx:xx:00:E0:8B:xx:xx:xx xx:xx:00:0F:1F:xx:xx:xx Description Dell/EMC or Brocade switch McData switch Dell/EMC storage processor Emulex HBA ports QLogic HBA ports (non-embedded) Dell 2362M HBA port Preparing Your Systems for Clustering 43