Storage area network (SAN) configurations that contain Lenovo Storage V series nodes
must be configured correctly.
Storage systems
Nodes
Fibre Channel host bus adapters
(HBAs)
Note:If
the system has an FC adapter fitted, some host
systems can be directly attached without using a SAN switch. Check
the support pages on the product website for the current details of
supported host OS / driver / HBA types.
Converged network adapters (CNAs)
Fibre Channel switches
iSCSI Ethernet ports
Fabrics
Zoning
SAN configuration and zoning rules summary Lenovo Storage V series systems during normal operations in a Fibre Channel environment are defined by supported configuration and zoning rules. If a single failure causes one or more of these rules to be invalidated, the configuration is still supported until the failure is corrected and the configuration is brought back into a normal supported mode.
Fibre Channel port masking
With Fibre Channel port masking, you control the use of Fibre Channel ports. You can control whether the ports are used to communicate to other nodes within the same local system, and if they are used to communicate to nodes in partnered systems. Fibre Channel port masking does not affect host or storage traffic. It gets applied only to node-to-node communications within a system and replication between systems.
Node configuration details Apply these configuration details to Lenovo Storage V series nodes to ensure that you have a valid configuration.
SAS configuration details Apply these Lenovo Storage V series configuration details for serial-attached SCSI (SAS) host connections.
Fibre Channel SAN configuration details Apply the following Lenovo Storage V series configuration details for Fibre Channel switches to ensure that you have a valid configuration.
Example SAN configurations Examples of typical ways to configure your system and an associated Fibre Channel network are provided to guide you in setting up your SAN configuration.
HyperSwap system configuration details You can create an HyperSwap® topology system configuration where each control enclosure that is used to access a HyperSwap® volume is physically on a different site.HyperSwap® topology is supported on Lenovo Storage V5030 systems.
Quorum disk A quorum disk is an MDisk or a managed drive that contains a reserved area that is used exclusively for system management.
Bitmap space configuration for Copy Services, volume mirroring, or RAID Copy Services features and RAID require that small amounts of volume cache be converted from cache memory into bitmap memory to allow the functions to operate. If you do not have enough bitmap space allocated when you try to use one of the functions, you will not be able to complete the configuration.
Comparison of mirroring methods The information in the following table compares the various methods that you can use to mirror your volumes.
Zoning details Ensure that you are familiar with these zoning details. These details explain zoning for external storage system zones and host zones.More details are included in the SAN configuration and zoning rules summary.