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VxFS System Administrator's Guide


Preface
Audience
Scope
Organization
Using This Guide
Conventions
Getting Help
The VERITAS File System
Introduction
VxFS Features
Disk Layout Options
File System Performance Enhancements
Extent Based Allocation
Typed Extents
Extent Attributes
Fast File System Recovery
Enhanced Security
Online System Administration
Defragmentation
Resizing
Online Backup
Application Interface
Application Transparency
Expanded Application Facilities
Extended mount Options
Enhanced Data Integrity Modes
Enhanced Performance Mode
Temporary File System Modes
Improved Synchronous Writes
Enhanced I/O Performance
Enhanced I/O Clustering
VxVM Integration
Quotas
Support for Large Files
Disk Layout
Introduction
Disk Space Allocation
The VxFS Version 1 Disk Layout
Overview
Super-Block
Intent Log
Allocation Unit
The VxFS Version 2 Disk Layout
Overview
Basic Layout
Filesets and Structural Files
Locating Dynamic Structures
The VxFS Version 4 Disk Layout
Extent Attributes
Introduction
Attribute Specifics
Reservation: Preallocating Space to a File
Fixed Extent Size
Other Controls
Commands Related to Extent Attributes
Failure to Preserve Extent Attributes
Online Backup
Introduction
Snapshot File Systems
Snapshot File System Disk Structure
How a Snapshot File System Works
Using a Snapshot File System for Backup
Creating a Snapshot File System
Making a Backup
Performance of Snapshot File Systems
Performance and Tuning
Introduction
Choosing a Block Size
Choosing an Intent Log Size
Choosing Mount Options
log
delaylog
tmplog
nolog
nodatainlog
blkclear
mincache
convosync
Combining mount Options
Kernel Tuneables
Internal Inode Table Size
VxVM Maximum I/O Size
Monitoring Free Space
Monitoring Fragmentation
I/O Tuning
Tuning VxFS I/O Parameters
Tuneable VxFS I/O Parameters
Application Interface
Introduction
Cache Advisories
Direct I/O
Unbuffered I/O
Discovered Direct I/O
Data Synchronous I/O
Other Advisories
Extent Information
Space Reservation
Fixed Extent Sizes
Freeze and Thaw
Get I/O Parameters ioctl
Quotas
Introduction
Quota Limits
Quotas File on VxFS
Quota commands
quotacheck With VxFS
Using Quotas
Kernel Messages
Introduction
File System Response to Problems
Marking an Inode Bad
Disabling Transactions
Disabling the File System
Recovering a Disabled File System
Kernel Messages
Global Message IDs
Glossary
Index

VxFS System Administrator's Guide
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