HP StorageWorks HSG80 ACS Solution Software V8.8 for Novell NetWare Installation and Configuration Guide (AA-RV1MA-TE, March 2005)

Planning Storage Configurations
62 HSG80 ACS Solution Software V8.8 for Novell NetWare Installation and Configuration 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 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?