DMF Administrator's Guide for SGI® InfiniteStorage
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DMF Administrator's Guide for SGI® InfiniteStorage

Document Number: 007-3681-008

Front Matter

| List of Figures | List of Examples | List of Tables | List of Procedures |

Table of Contents

New Features

About This Guide
Related Publications
Obtaining Publications
Conventions
Reader Comments

1. Introduction
What Is DMF?
How DMF Works
Ensuring Data Integrity
DMF Architecture
Capacity and Overhead
DMF Administration
The User's View of DMF
DMF File Concepts and Terms
Command Overview

2. Configuring DMF
Overview of the Configuration Steps
Configuration Considerations
Using dmmaint To Install the License and Configure DMF
Configuration Objects
Verifying the Configuration
Initializing DMF
General Message Log File Format
Parameter Table

3. Automated Space Management
Generating the Candidate List
Selection of Migration Candidates
Space Management and the Disk Cache Manager
Automated Space Management Log File

4. The DMF Daemon
Daemon Processing
DMF Daemon Database and dmdadm
Daemon Logs and Journals

5. The DMF Lock Manager
dmlockmgr Communication and Log Files
dmlockmgr Individual Transaction Log Files

6. Media-Specific Processes and Library Servers
Tape MSP and LS Operations
FTP MSP
Disk MSP
Disk MSP and Disk Cache Manager (DCM)
Moving Migrated Data between MSPs and Volume Groups
Converting from an IRIX DMF to a Linux DMF
Converting from a Tape MSP to a Library Server
Library Server Error Analysis and Avoidance
Library Server Drive Scheduling
Library Server Status Monitoring

7. DMF Maintenance and Recovery
Retaining Old DMF Daemon Log Files
Retaining Old DMF Daemon Journal Files
Soft- and Hard-deletes
Using xfsdump and xfsrestore with Migrated Files
Using dmfill
Database Recovery

A. Messages
Message Format
dmcatadm Message Interpretation
dmvoladm Message Interpretation

B. DMF User Library (libdmfusr.so)
Overview
Data Types
User-Accessible API Subroutines

C. DMF Directory Structure Prior to Release 2.8

D. Differences from UNICOS DMF and UNICOS/mk DMF

Glossary

Index
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