GPFS: Administration and Programming Reference - IRA Home
GPFS: Administration and Programming Reference - IRA Home
GPFS: Administration and Programming Reference - IRA Home
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Contents<br />
Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix<br />
About this book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi<br />
Who should read this book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi<br />
Accessibility information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi<br />
Conventions used in this book . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi<br />
Prerequisite <strong>and</strong> related information . . . . . . . . . . . . . . . . . . . . . . . . . . xii<br />
ISO 9000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii<br />
How to send your comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii<br />
Summary of changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii<br />
Chapter 1. Performing <strong>GPFS</strong> administration tasks . . . . . . . . . . . . . . . . . . . . 1<br />
Requirements for administering a <strong>GPFS</strong> file system . . . . . . . . . . . . . . . . . . . . 1<br />
Chapter 2. Managing your <strong>GPFS</strong> cluster . . . . . . . . . . . . . . . . . . . . . . . 3<br />
Creating your <strong>GPFS</strong> cluster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3<br />
Displaying <strong>GPFS</strong> cluster configuration information . . . . . . . . . . . . . . . . . . . . . 3<br />
Specifying nodes as input to <strong>GPFS</strong> comm<strong>and</strong>s . . . . . . . . . . . . . . . . . . . . . . 4<br />
Adding nodes to a <strong>GPFS</strong> cluster . . . . . . . . . . . . . . . . . . . . . . . . . . . 5<br />
Deleting nodes from a <strong>GPFS</strong> cluster . . . . . . . . . . . . . . . . . . . . . . . . . . 5<br />
Changing the <strong>GPFS</strong> cluster configuration data . . . . . . . . . . . . . . . . . . . . . . 6<br />
Node quorum considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10<br />
Node quorum with tiebreaker considerations . . . . . . . . . . . . . . . . . . . . . . 10<br />
Displaying <strong>and</strong> changing the file system manager node . . . . . . . . . . . . . . . . . . 10<br />
Starting <strong>and</strong> stopping <strong>GPFS</strong> . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11<br />
Chapter 3. Managing file systems . . . . . . . . . . . . . . . . . . . . . . . . . . 13<br />
Mounting a file system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13<br />
Mounting a file system on multiple nodes . . . . . . . . . . . . . . . . . . . . . . . 13<br />
<strong>GPFS</strong>-specific mount options . . . . . . . . . . . . . . . . . . . . . . . . . . . 13<br />
Unmounting a file system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14<br />
Unmounting a file system on multiple nodes . . . . . . . . . . . . . . . . . . . . . 15<br />
Deleting a file system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15<br />
Determining which nodes have a file system mounted . . . . . . . . . . . . . . . . . . . 15<br />
Checking <strong>and</strong> repairing a file system . . . . . . . . . . . . . . . . . . . . . . . . . 16<br />
Listing file system attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17<br />
Modifying file system attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . 18<br />
Querying <strong>and</strong> changing file replication attributes . . . . . . . . . . . . . . . . . . . . . 18<br />
Querying file replication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18<br />
Changing file replication attributes . . . . . . . . . . . . . . . . . . . . . . . . . 19<br />
Using Direct I/O on a file in a <strong>GPFS</strong> file system . . . . . . . . . . . . . . . . . . . . . 19<br />
Restriping a <strong>GPFS</strong> file system . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19<br />
Querying file system space . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21<br />
Querying <strong>and</strong> reducing file system fragmentation . . . . . . . . . . . . . . . . . . . . . 22<br />
Querying file system fragmentation . . . . . . . . . . . . . . . . . . . . . . . . . 22<br />
Reducing file system fragmentation . . . . . . . . . . . . . . . . . . . . . . . . . 23<br />
Backing up a file system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23<br />
Required level of Tivoli Storage Manager . . . . . . . . . . . . . . . . . . . . . . . 23<br />
Setting up TSM for use by <strong>GPFS</strong> . . . . . . . . . . . . . . . . . . . . . . . . . 23<br />
Specifying TSM parameters with the mmbackup comm<strong>and</strong> . . . . . . . . . . . . . . . . 24<br />
Using APIs to develop backup applications . . . . . . . . . . . . . . . . . . . . . . 24<br />
© Copyright IBM Corp. 1998, 2006 iii
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