Veritas Storage Foundation Intelligent Storage Provisioning 5.0.1 Solutions Guide, HP-UX 11i v3, First Edition, November 2009

Tiered storage solutions

This chapter includes the following topics:

■ About tiered storage solutions

■ Policies for storage tiers

■ Setting up tiered storage using ISP volumes

About tiered storage solutions

The typical requirements of enterprise-level storage management are to store

and reliably maintain data from a number of different sources, such as inventory,

customer, billing, business intelligence and personnel records. Such data is usually

stored in file systems on several host systems.

Much enterprise data is mission-critical, and it must be stored so that it is readily

available for secure update and retrieval by staff over the internal network, and

by customers over the Internet. However, storing all an enterprise’s data in the

same way is expensive, and so it is usual to store data that is not mission-critical

on media that are cheaper and perhaps less readily accessible.

Storage tiers establish quality of storage service (QoSS) criteria that allow an

enterprise’s data to be organized with varying degrees of availability and

performance on storage with varying degrees of performance, accessibility and

cost.

Table 3-1 shows typical criteria for organizing storage tiers according to cost and

benefit.

Chapter