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Features and Capabilities of the Sun StorageTek 9985V
The method by which the StorageTek 9985V implements multi-vendor host platform storage pooling is
through mapping an external LUN (ELUN) to a LUN within the StorageTek 9985Vsystem. An external LUN
(ELUN) requires no physical disk storage on the StorageTek 9985V.
Multi-Vendor Host Platform Storage Pooling External LUN Mapping
An external heterogeneous storage system can be connected to a StorageTek 9985V system (1) through a direct
connection, (2) through a switch, or, remotely, through extenders.
Currently, the following heterogeneous storage systems are supported by the StorageTek 9985V multi-vendor
host platform storage pooling:
Sun StorageTek 9900 series storage systems
HDS Lightning 9985V series storage systems
HDS Thunder 9500V series storage systems
HP XP series storage system
Sun StoreEdge T3B, and SE 6120.
Additional Sun and other vendor's storage systems will be added to this support matrix as they are qualified and
support agreements reached.
Virtual Private Storage Machines (VPSM)
Another unique feature of the StorageTek 9985V system is the ability to create Virtual Private Storage
Machines within the system. Through the StorageTek 9985V Virtual Partition Manager, up to 8 separate
Virtual Private Storage Machines can be defined, each with unique cache, channel, back-end resource
aggregation specifications. This virtual partitioning feature of the StorageTek 9985V allows users to
consolidate heterogeneous storage environments to provide known quality of service (QoS) metrics to
applications and users.
VPSMs complement Dynamic System Domains (DSD) provided in Sun Servers. DSDs are a form of server
partitioning. Together, VPSMs and DSD supports a customer's “Service Provider” business model initiatives.
Each Virtual Private Storage Machine within a StorageTek 9985V is dynamically allocated and statically used.
This capability allows the assignment of resources between partitions if not required or used. Additionally, full
separation and security is maintained between configured partitions.
The benefits of the StorageTek 9985V Virtual Private Storage Machines are:
Better resource usage
User and application aggregation with predictable QoS metrics
Lower operational costs.
The virtual partitioning feature of a StorageTek 9985V is ideal for dedicating storage resources to critical
applications, or in a storage provider model, allocating storage resources to specific clients with varying service
level agreements. One example of the use of virtual partitioning would be the creation of separate storage
partitions, each with different characteristics, supporting individual SunFire server domains. Figure 7
conceptually portrays the StorageTek 9985V virtual partitioning functionality.
Just the Facts
October 2007
59
Sun Confidential – For Internal Use and Authorized Partner Use Only