User`s guide

3
Configuration Rules and Restrictions
This chapter describes configuration rules and restrictions for standard and
nonstandard (customized) HS array controller subsystems. When specific rules
and restrictions are not provided, references are given to the proper StorageWorks
documentation.
Note
Configuration rules and restrictions apply to all HS array controller
platforms (HSJ30, HSJ40, HSD30, HSZ40–Ax, and HSZ40–Bx array
controllers) unless stated otherwise.
3.1 Ordering Considerations
Digital provides the following configuration approaches for ordering HS array
controller subsystems:
• Preconfigured (packaged) systems (standard starter subsystems)
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• Configure-to-order (CTO) systems (custom configurations)
• A combination of preconfigured and CTO systems
Refer to Appendix A for a list of preconfigured controller subsystem option
numbers. Not all controller models have preconfigured subsystem option
numbers. Your Digital sales representative can assist you with order numbers.
3.2 Cabinets
The following sections present information to consider when loading BA350-series
controller and storage shelves in SW800-series data center cabinets and
SW500-series cabinets. The design of the SW300-series deskside RAID enclosure
is such that the single controller/storage shelf and its cabling are internal
and fixed. Configuring shelves into an SW300-series cabinet essentially is not
required.
Note
In the loading sequence illustrations in this chapter, the designator ‘‘S’’
indicates a BA350–SB storage shelf and the designator ‘‘C’’ indicates a
BA350–MA controller shelf.
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Preconfigured subsystems include a range of solutions for various capacities, performance
levels, and availability.
Configuration Rules and Restrictions 3–1