HP 4100 Enterprise Virtual Array - Manual (Page 23)

3 EVA storage system concepts
Controllers
A storage system contains a redundant pair of disk array controllers that manage storage system
operation and serve as the physical interface to the SAN. All host I/O and management commands from
HP Command View EVA are processed by the controller pair. More information on controllers is in HP
StorageWorks 4400 Enterprise Virtual Array user guide. See related documentation .
Controller type identification
HP EVA controller identification format is HSVxxx. The following table shows the relationship between
controller types and storage system models.
Controller
Hardware Type
Controller
Software Type
HP EVA Models
HSV100 VCS EVA3000
HSV110 VCS EVA5000
HSV200 XCS EVA4000, EVA4100, EVA6000 and EVA6100
HSV210 XCS EVA8000 and EVA8100
HSV300 XCS EVA4400
Disk device ports
Disk device ports are the storage system ports that logically and physically connect the internal controllers
with the physical disk enclosures. Device port connectors and cables are located on the back of each
controller. More information is in the HP StorageWorks 4400 Enterprise Virtual Array user guide. See
related documentation .
Disk device loop pairs
Disk device port connections include two loops, loop A and loop B. Every physical disk that is inserted
into a drive enclosure is automatically connected to both loops. The loops operate independently during
normal operation, but provide redundant connections in case one fails. More information is in the HP
StorageWorks 4400 Enterprise Virtual Array user guide. See related documentation .
Host ports
Host ports are the storage system ports that logically and physically connect the storage system
with external hosts (servers). Host port connectors and cables are located on the back of each
controller. More information is in the HP StorageWorks 4400 Enterprise Virtual Array user guide. See
related documentation .
HP Command View EVA
HP Command View EVA is the primary storage management software for HP EVA storage systems. The
HP Command View EVA software suite includes the following products.
EVA Web-based Operator Control Panel 1.0 23