Array Design Considerations; Array Hardware Configuration - HP Surestore Disk Array 12h - And FC60 Service Manual

Array Design Considerations

The Disk Array FC60 is a versatile storage system that can be configured to meet varying
application storage needs. To meet a specific application need, the array should be
configured to optimize the features most important for the application. Array features
include:
•
High availability
•
Performance (high I/O transfer rates)
•
Storage capacity (optimize for lowest cost/Mbyte)
•
Scalability
Optimizing array operation for a specific feature is managed by configuring various array
installation and operation options. These options include: hardware configuration, RAID
level and volume group creation, the number of SC10 disk enclosures used, and system
support software. It should be noted that optimizing the disk array for one feature may
compromise another. For example, optimizing for maximum performance may increase the
cost per megabyte of storeage.

Array Hardware Configuration

Array configuration options that affect high availability, performance, and storage capacity
include Fibre Channel connections, disk enclosure bus configuration, and the array's
internal Ultra2 SCSI channels. This information is presented first, because it is the basis for
some of the array configuration planning.
Fibre Channel Connection
If the controller enclosure has both controller modules installed, dual Fibre Channels can
be connected to the controller enclosure (if only one controller module is installed, only
one Fibre Channel cable can be connected). Using dual Fibre Channel-AL connections
increases the data throughput and provides for higher data availability.
Array Design Considerations
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