Storage area network (SAN) configurations that contain Lenovo Storage V7000 nodes
must be configured correctly.
A SAN configuration
that contains Lenovo Storage V7000 nodes
must follow configuration rules for the following components:
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 A Lenovo Storage V7000 system during normal operations in a Fibre Channel environment is 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 10-gigabit Ethernet fabric configuration details Lenovo Storage V7000 supports 10-Gigabit Ethernet (10 GbE) Fibre Channel over Ethernet (FCoE) fabric configuration.If any of the configuration rules are invalidated because a component in the fabric failed, the configuration is still supported until the failure can be corrected and configuration is returned to normal operation
iSCSI configuration details You must follow these Lenovo Storage V7000 configuration details for iSCSI host connections.
Node configuration details Apply these configuration details to Lenovo Storage V7000 nodes to ensure that you have a valid configuration.
Fibre Channel and FCoE SAN configuration details Apply the following Lenovo Storage V7000 configuration details for Fibre Channel and Fibre Channel Over Ethernet (FC/FCoE Gateway, FCF) switches to ensure that you have a valid configuration.
Example Lenovo Storage V7000 configurations Examples of typical ways to configure your Lenovo Storage V7000 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 IBMHyperSwap® topology system configuration where each control enclosure that is used to access a HyperSwap® volume is physically on a different site. When used with active-active relationships to create HyperSwap® volumes, these configurations can be used to maintain access to data on the system when power failures or site-wide outages occur.
Quorum 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.