Advanced functions for the Hitachi TagmaStore AMS 2000 family of systems

Some advanced functions of the Hitachi TagmaStore AMS 2000 family of systems are not supported by the system.

Advanced copy functions

Advanced copy functions for the Hitachi TagmaStore AMS 2000 family of systems are not supported for disks that are managed by the system because the copy function does not extend to the system cache. For example, ShadowImage, TrueCopy, and HiCopy are not supported.

LUN Security

LUN Security enables LUN masking by the worldwide node name (WWNN) of the initiator port. This function is not supported for logical units (LUs) that are used by the system.

Partitioning

Partitioning splits a RAID into up to 128 smaller LUs, each of which serves as an independent disk-like entity. The system and the Hitachi TagmaStore AMS 2000 family of systems support the partitioning function.

Dynamic array expansion

Members of the Hitachi TagmaStore AMS 2000 family of systems allow the last LU that is defined in a RAID group to be expanded. This function is not supported when these storage systems are attached to a system. Do not perform dynamic array expansion on LUs that are in use by the system.

Note: Use in this context means that the LU has a LUN number that is associated with a Fibre Channel port, and this Fibre Channel port is contained in a switch zone that also contains the system's Fibre Channel ports.

Host storage domains and virtual Fibre Channel ports

The Hitachi TagmaStore AMS 2000 family of systems supports host storage domains (HSD) and virtual Fibre Channel ports. Each Fibre Channel port can support multiple HSDs. Each host in a given HSD is presented with a virtual target port and a unique set of LUNs.