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1 introduction to storage management, Introduction to storage management – HP NonStop G-Series User Manual

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HP NonStop Storage Management Foundation User's Guide523562-008

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Introduction to Storage Management

Managing storage can include:

Changing the physical location of a file on a disk

Managing disk capacity

Installing and populating new disk volumes

Determining efficient file placement for maximum performance

Managing storage manually is expensive, complex, and error prone. Storage
administrators are often required to shut down applications to manually reorganize
data storage. In some cases, all data on a disk becomes inaccessible when
reorganizing data, and for certain operations, the entire system becomes unavailable.

Storage administrators often must use several different tools with different interfaces to
complete an operation. Such multi-step operations must be carefully planned and
precisely completed because there is often no convenient way to recover from errors
midway through the operation.

Unplanned outages, in which data becomes unavailable for an indeterminate amount
of time, are costly to end users.

The SMF subsystem and the NonStop Automated Storage Manager (ASM) subsystem
provide the tools and interfaces used to automate many storage management tasks for
NonStop systems.

This section contains these topics:

Storage Administrators

on page 1-2

Storage Management Solutions

on page 1-2

SMF Architectural Concepts

on page 1-4

Overview of SMF Processes

on page 1-6

SMF Catalogs

on page 1-7

Configuration Interfaces for SMF

on page 1-8

Other SMF Processes and Components

on page 1-9

Software Support for SMF

on page 1-10