Novell Open Enterprise Server 2 Bedienungsanleitung

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novdocx (en) 6 April 2007

OES 2: NetWare Traditional File System Administration Guide

Open Enterprise Server

September 2007

NETWARE®TRADITIONAL FILE

SYSTEM ADMINISTRATION GUIDE

novdocx (en) 6 April 2007

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Contents 5

Contents

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About This Guide 9

1 Overview of the NetWare Traditional File System 11

1.1 NetWare Traditional Volumes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1.1.1 What Happens When You Mount a Traditional Volume . . . . . . . . . . . . . . . . . . . . . . 12

1.1.2 Traditional Volume Objects in eDirectory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.2 Traditional Volume Segments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.3 What’s Next . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2 Using NetWare Traditional Volumes in a Virtual Guest Server Environment 15

3 Configuring and Managing NetWare Traditional Volumes 17

3.1 Using Novell Remote Manager for NetWare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.2 Managing NetWare Partitions for Traditional Volumes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.3 Creating a NetWare Partition for Traditional Volumes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.4 Expanding the Size of a NetWare Partition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.5 Unmirroring a Mirrored NetWare Partition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.6 Deleting a NetWare Partition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.7 Creating and Mounting a Traditional Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.8 Mounting a Traditional Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.9 Dismounting a Traditional Volume. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.10 Expanding the Size of a Traditional Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.11 Setting the Space Quota for a Traditional Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.12 Salvaging and Purging Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.13 Loading and Installing Name Spaces on a Traditional Volume . . . . . . . . . . . . . . . . . . . . . . . . 22

3.14 Storing Non-DOS Files on a Traditional Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.14.1 Calculating Memory Required for Name Space Support. . . . . . . . . . . . . . . . . . . . . . 23

3.14.2 Adding a Name Space . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.14.3 Removing Name Spaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.15 Creating an eDirectory Object for a Traditional Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.16 Naming or Renaming a Traditional NetWare Partition or Volume . . . . . . . . . . . . . . . . . . . . . . 24

3.17 Deleting a Traditional Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.18 Repairing a Traditional Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.18.1 Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.18.2 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.19 Protecting Data: Disk Mirroring and Duplexing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3.20 Using Directory Map Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3.21 Upgrading Media Format from Traditional Volumes to NSS Volumes. . . . . . . . . . . . . . . . . . . 27

4 Configuring Advanced Features for Traditional Volumes 29

4.1 Compressing and Decompressing Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.1.1 Planning for File Compression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.1.2 Setting Server-Level File Compression Attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4.1.3 Enabling File Compression for a Traditional Volume . . . . . . . . . . . . . . . . . . . . . . . . 31

4.1.4 Disabling File Compression for a Traditional Volume . . . . . . . . . . . . . . . . . . . . . . . . 31

6OES 2: NetWare Traditional File System Administration Guide

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4.1.5 Suspending File Compression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

4.2 Salvaging and Purging Files. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

4.2.1 Configuring Salvage for All NSS Volumes on the Server. . . . . . . . . . . . . . . . . . . . . . 32

4.2.2 Salvaging Deleted Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

4.2.3 Purging Deleted Files. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5 Using Software RAID1 Devices for Data Fault Tolerance 35

5.1 Planning Your Software RAID1 Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.1.1 Fault Tolerance for Traditional Volumes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.1.2 Key Concepts for Mirroring Traditional NetWare Partitions . . . . . . . . . . . . . . . . . . . . 36

5.1.3 Improving Fault Tolerance for Software RAID1 Devices with Duplexing . . . . . . . . . . 36

5.1.4 Example Software RAID1 Solution for Fault Tolerance of Traditional Volumes. . . . . 37

5.2 Managing Traditional Software RAID1 Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

5.2.1 Mirroring Partitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

5.2.2 Unmirroring Partitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

5.2.3 Recovering Data from an Out of Sync Disk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

6 Using Software RAID0 Devices to Enhance Disk I/O Performance 41

6.1 Planning Your Software RAID0 Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

6.2 Managing Traditional Software RAID0 Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

7 Optimizing Disk and Cache Performance for Traditional Volumes 43

7.1 Optimizing Storage Disk Capacity for Traditional Volumes . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

7.1.1 Saving Disk Space with Block Suballocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

7.1.2 Disable Read-After-Write-Verify. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

7.1.3 For 16-Bit Disk Adapters, Increase the Number of Reserved Buffers Below 16 MB . 44

7.1.4 Use Drivers that Support Scatter/Gather Functionality . . . . . . . . . . . . . . . . . . . . . . . 44

7.1.5 Provide a Disk Large Enough for a Memory Core Dump . . . . . . . . . . . . . . . . . . . . . . 44

7.1.6 Select Segments for Volumes from Different Disks . . . . . . . . . . . . . . . . . . . . . . . . . . 44

7.1.7 Monitor Free Space in Volumes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

7.2 Improving Disk Reads on Traditional Volumes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

7.2.1 Change Concurrent Disk and Directory Writes for Faster Reads for Traditional

Volumes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

7.2.2 Change the Turbo FAT Wait Time for Faster Reads of Traditional Volumes. . . . . . . 46

7.3 Improving Disk Writes for Traditional Volumes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

7.3.1 Increase the Number of Concurrent Writes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

7.3.2 Change Disk and Directory Caching for Faster Writes . . . . . . . . . . . . . . . . . . . . . . . 47

7.3.3 Turn Off Read-After-Write Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

7.4 Configuring SET Parameters for the NetWare Traditional File System . . . . . . . . . . . . . . . . . . 48

7.5 Configuring Common File System SET Parameters for NetWare . . . . . . . . . . . . . . . . . . . . . . 49

8 Troubleshooting 51

8.1 Resolving File I/O Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

8.2 Resolving Volume I/O Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

8.3 Resolving Problems When the Server Hangs after Mounting the Last Volume . . . . . . . . . . . . 52

8.4 Resolving Problems When No Volumes Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

8.5 Resolving Problems When Only Some Volumes Mount. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

8.6 Resolving Disk Error Problems When a Volume is Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . 53

8.7 Resolving Memory Errors When a Volume Is Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

8.8 Resolving Volume Mounting Problems Caused by Corrupted Directory Entry Tables or File

Allocation Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Contents 7

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8.9 Resolving Volume Mounting Problems Caused by the Name Space Module . . . . . . . . . . . . . 55

8OES 2: NetWare Traditional File System Administration Guide

novdocx (en) 6 April 2007

About This Guide

novdocx (en) 6 April 2007

About This Guide

This guide discusses how to configure and manage the NetWare®Traditional File System for

Novell®Open Enterprise Server 2 NetWare and NetWare 6.5 SP7. The guide is divided into the

following sections:

Chapter 1, “Overview of the NetWare Traditional File System,” on page 11

Chapter 2, “Using NetWare Traditional Volumes in a Virtual Guest Server Environment,” on

page 15

Chapter 3, “Configuring and Managing NetWare Traditional Volumes,” on page 17

Chapter 4, “Configuring Advanced Features for Traditional Volumes,” on page 29

Chapter 5, “Using Software RAID1 Devices for Data Fault Tolerance,” on page 35

Chapter 6, “Using Software RAID0 Devices to Enhance Disk I/O Performance,” on page 41

Chapter 7, “Optimizing Disk and Cache Performance for Traditional Volumes,” on page 43

Chapter 8, “Troubleshooting,” on page 51

Audience

This guide is intended for system administrators of a NetWare server that uses NetWare Traditional

file systems.

Feedback

We want to hear your comments and suggestions about this manual and the other documentation

included with this product. Please use the User Comment feature at the bottom of each page of the

online documentation, or go to www.novell.com/documentation/feedback.html and enter your

comments there.

Documentation Updates

For the most recent version of the NetWare Traditional File System Administration Guide for OES,

see the OES Documentation Web Site (http://www.novell.com/documentation/oes2/index.html).

Additional Documentation

For more information, see the following:

OES 2: NetWare Server Disks and Storage Devices

OES 2: File Systems Management Guide

OES 2: NSS File System Administration Guide

OES 2: Novell Remote Manager for NetWare Administration Guide

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