Instruction Manual

VCS benefits
VCS provides scalable capacity on-demand, helps improve per formance, increases disk utilization
efficiency, a nd allows for easy dynamic storage expansion by providing the following features:
• High-density p
ackaging and support of more disks per controller pair. Up to 24TB of disk storage
in approximate
ly 5.9 square feet (0 .5 square meters) using 168 d isk s.
• Virtually Capacity-Free Snapshot (Vsnap) function that saves significant disk space and improves
disk utilization efficiency .
• Virtually Instantaneous Snapclone copy capability that allows imme diate use of the clone copy.
• Simplified st
orage management, such as server-independent storage management, automatic
load balanci
ng, and on-the-fly storage expansion to improve management efficiency .
VCS features and functionality
VCS provides the following capabilities:
• Support for up to 240 disk drives per controller pair
• Management of up to 512 virtual disks, ranging in size from 1 GB to 2 TB per virtual disk, per
disk pool
• Dynamic capacity expansion and virtual disk data load leveling
• Distributed sparing of disk capacity
• Virtu ally Capacity-Free Snapshot (Vsnap)
• Virtually Instantaneous Snapclone
• Dual redundant controller operation for increased fault tolerance
• M ultiple path failover support
• Batter y back-up for cache memory
• Asynchronous disk swap (Hot Swap)
• Clustered server support
• Mirrored write-back cache support
• Read-ahead and adaptive read caching support
• Virtual RAID arrays ( Vraid0, Vraid1, Vraid5)
• Non-disruptive software upgrade capability
• Suppor ts connection of up to 256 hosts
• M ultivendor platform support
• Controller password protection for configuration control
• Selective storage presentation
• SAN-based data zoning
Additional information about HP StorageWorks Virtual Controller Software can be found online at:
h
ttp://h1800 0.www1.hp.com/storage/index.html.
Optional software licensing
Business Copy EVA and Continuous Access EVA require a separate license for each controller pair.
Inst
ructions for obtaining a license are included with the software documentation.
Addi
tional information about Business Copy EVA and Continuous Access EVA can be found online at:
h
ttp://h1800 6.w ww1.hp.com/storage/software/index.html.
Hardware
The Enterprise Virtual Array consists of the following hardware components:
22
System description