Advanced functions for HDS Thunder, HDS TagmaStore AMS, and HDS TagmaStore WMS

Some advanced functions of the HDS Thunder, HDS TagmaStore Adaptable Modular Storage (AMS) and HDS TagmaStore Workgroup Modular Storage (WMS), systems are not supported by the SAN Volume Controller clusters.

Advanced copy functions

Advanced copy functions for HDS Thunder, HDS TagmaStore AMS, and HDS TagmaStore WMS systems are not supported for disks that are managed by the SAN Volume Controller clusters because the copy function does not extend to the SAN Volume Controller 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 SAN Volume Controller clusters.

Partitioning

Partitioning splits a RAID array into up to 128 smaller LUs, each of which serves as an independent disk like entity. The SAN Volume Controller cluster and HDS Thunder, HDS TagmaStore AMS, and HDS TagmaStore WMS systems support the partitioning function.

Dynamic array expansion

The HDS Thunder, HDS TagmaStore AMS, and HDS TagmaStore WMS 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 SAN Volume Controller cluster. Do not perform dynamic array expansion on LUs that are in use by a SAN Volume Controller cluster.

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 SAN Volume Controller fibre-channel ports.

Host storage domains and virtual fibre-channel ports

The HDS Thunder 95xxV, HDS TagmaStore AMS, and HDS TagmaStore WMS systems support 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.

The Thunder 9200 does not support HSD and virtual fibre-channel the ports.