HP StorageWorks HSG80 ACS Solution Software V8.8 for Sun Solaris Installation and Configuration Guide (AA-RV1RA-TE, March 2005)

Planning Storage Configurations
61HSG80 ACS Solution Software V8.8 for Sun Solaris Installation and Configuration Guide
— Use SWCC. See the SWCC documentation for details.
— Use the Command Line Interpreter (CLI) commands. This method allows
you flexibility in defining and naming your storage containers. See the
HP StorageWorks HSG60 and HSG80 Array Controller and Array
Controller Software Command Line Interface (CLI) Reference Guide.
Determining Storage Requirements
It is important to determine your storage requirements. Here are a few of the
questions you should ask yourself regarding the subsystem usage:
■ What applications or user groups will access the subsystem? How much
capacity do they need?
■ What are the I/O requirements? If an application is data transfer-intensive,
what is the required transfer rate? If it is I/O request-intensive, what is the
required response time? What is the read/write ratio for a typical request?
■ Are most I/O requests directed to a small percentage of the disk drives? Do
you want to keep it that way or balance the I/O load?
■ Do you store mission-critical data? Is availability the highest priority or would
standard backup procedures suffice?
Configuration Rules for the Controller
The following list defines maximum configuration rules for the controller:
■ 128 visible LUNs/200 assignable unit numbers
— In SCSI-2 mode, if the CCL is enabled, the result is 127 visible LUNs and
one CCL.
— In SCSI-3 mode, if the CCL is enabled, the result is 126 visible LUNs and
two CCLs.
■ 1.024 TB storageset size
■ 96 host connections
■ 84 physical devices
■ 20 RAID 3/5 storagesets
■ 30 RAID 3/5 and RAID 1 storagesets (see note)
■ 45 RAID 3/5, RAID 1, and RAID 0 storagesets (see note)