IRIX™ Admin: Disks and Filesystems

Document Number: 007-2825-001

Front Matter

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

Table of Contents

IRIX Admin Manual Set

About This Guide
What This Guide Contains
Conventions Used in This Guide
How to Use This Guide
Product Support
Additional Resources

1. Disk Concepts
Disk Drives Supported by IRIX
Physical Disk Structure
Disk Partitions
System Disks, Option Disks, and Partition Layouts
Partition Types
Volume Headers
Device Files

2. Performing Disk Administration Procedures
Listing the Disks on a System With hinv
Formatting and Initializing a Disk With fx
Adding Files to the Volume Header With dvhtool
Removing Files in the Volume Header With dvhtool
Displaying a Disk's Partitions With prtvtoc
Repartitioning a Disk With xdkm
Repartitioning a Disk With fx
Creating Device Files With MAKEDEV
Creating Device Files With mknod
Creating Mnemonic Names for Device Files With ln
Creating a System Disk From the PROM Monitor
Creating a New System Disk From IRIX
Creating a New System Disk by Cloning
Adding a New Option Disk

3. Filesystem Concepts
IRIX Directory Organization
General Filesystem Concepts
EFS Filesystems
XFS Filesystems
Network File Systems (NFS)
Cache File Systems (CacheFS)
/proc Filesystem
Filesystem Creation
Filesystem Mounting and Unmounting
Filesystem Checking
Filesystem Reorganization
Filesystem Administration From the Miniroot
How to Add Filesystem Space
Disk Quotas
Filesystem Corruption

4. Creating and Growing Filesystems
Planning for XFS Filesystems
Making an XFS Filesystem
Making an EFS Filesystem
Making a Filesystem From inst
Growing an XFS Filesystem Onto Another Disk
Growing an EFS Filesystem Onto Another Disk
Converting Filesystems on the System Disk From EFS to XFS
Converting a Filesystem on an Option Disk From EFS to XFS

5. Maintaining Filesystems
Routine Filesystem Administration Tasks
Mounting and Unmounting Filesystems
Managing Disk Space
Copying XFS Filesystems With xfs_copy
Checking EFS Filesystem Consistency With fsck
Checking XFS Filesystem Consistency With xfs_check

6. Logical Volume Concepts
Introduction to Logical Volumes
XLV Logical Volumes
lv Logical Volumes

7. Creating and Administering XLV Logical Volumes
Verifying That Plexing Is Supported
Creating Volume Objects With xlv_make
Displaying Logical Volume Objects
Adding a Volume Element to a Plex (Growing a Logical Volume)
Adding a Plex to a Logical Volume
Detaching a Plex From a Logical Volume
Deleting an XLV Object
Removing and Mounting a Plex
Creating Plexed Logical Volumes for Root
Booting the System Off an Alternate Plex
Configuring the System for More Than Ten XLV Logical Volumes
Converting lv Logical Volumes to XLV Logical Volumes
Creating a Record of XLV Logical Volume Configurations

8. Creating and Administering lv Logical Volumes
Creating Entries in the /etc/lvtab File
Creating New Logical Volume With mklv
Checking Logical Volumes With lvck
Creating a Logical Volume and a Filesystem on Newly Added Disks
Increasing the Size of a Logical Volume
Shrinking a Logical Volume

9. System Administration for Guaranteed-Rate I/O
Guaranteed-Rate I/O Overview
GRIO Guarantee Types
GRIO System Components
Hardware Configuration Requirements for GRIO
Configuring a System for GRIO
Additional Procedures for GRIO
GRIO File Formats

A. Repairing EFS Filesystem ProblemsWith fsck
Initialization Phase
General Errors
Phase 1 Check Blocks and Sizes
Phase 2 Check Pathnames
Phase 3 Check Connectivity
Phase 4 Check Reference Counts
Phase 5 Check Free List
Phase 6 Salvage Free List
Cleanup Phase