HP-UX System Administrator's Guide: Logical Volume Management (762803-001, March 2014)

3.3.16 Quiescing and Resuming a Volume Group...................................................................68
3.3.17 Renaming a Volume Group.......................................................................................69
3.3.18 Splitting a Volume Group..........................................................................................70
3.3.19 Removing a Volume Group........................................................................................71
3.3.20 Backing Up a Mirrored Logical Volume......................................................................71
3.3.21 Backing Up and Restoring Volume Group Configuration...............................................72
3.4 Moving and Reconfiguring Your Disks.................................................................................73
3.4.1 Moving Disks Within a System....................................................................................74
3.4.2 Moving Disks Between Systems...................................................................................75
3.4.3 Moving Data to a Different Physical Volume..................................................................76
3.4.3.1 Moving a Root Disk to Another Disk.....................................................................76
3.4.3.2 pvmove Command Syntax..................................................................................77
3.4.4 Moving Data for Disk Space Balancing: Auto Re-balancing............................................78
3.4.5 Creating a Spare Disk...............................................................................................79
3.4.6 Reinstating a Spare Disk............................................................................................80
3.4.7 Modifying Physical Volume Characteristics...................................................................80
3.4.7.1 Handling Size Increases......................................................................................81
3.4.7.2 Handling Size Decreases....................................................................................87
3.4.7.3 Supported LUN Changes per Release...................................................................87
3.4.7.4 Changing Physical Volume Boot Types..................................................................87
3.4.8 Disabling a Path to a Physical Volume..........................................................................90
3.4.9 Creating an Alternate Boot Disk..................................................................................91
3.4.10 Mirroring the Boot Disk.............................................................................................93
3.4.10.1 Mirroring the Boot Disk on HP 9000 Servers........................................................93
3.4.10.2 Mirroring the Boot Disk on HP Integrity Servers....................................................95
3.5 Migrating a Volume Group to New Disks: vgmove................................................................98
3.5.1 Example of Migrating a Volume Group to New Disks.....................................................98
3.6 Migrating a Logical Volume to New Disks: lvmove................................................................99
3.7 Administering File System Logical Volumes.........................................................................100
3.7.1 Creating a File System..............................................................................................100
3.7.2 Extending a File System............................................................................................101
3.7.3 Reducing the Size of a File System.............................................................................102
3.7.4 Backing Up a VxFS Snapshot File System....................................................................104
3.8 Administering Swap Logical Volumes.................................................................................104
3.8.1 Administering primary Swap Logical Volumes..............................................................105
3.8.1.1 Creating a Swap Logical Volume........................................................................105
3.8.1.2 Extending a Swap Device..................................................................................105
3.8.1.3 Reducing the Size of a Swap Device...................................................................106
3.8.2 Administering secondary Swap Logical Volumes.........................................................106
3.9 Administering Dump Logical Volumes................................................................................106
3.9.1 Administering dump Logical Volumes on root VGs........................................................106
3.9.1.1 Creating a Dump Logical Volume........................................................................106
3.9.1.2 Removing a Dump Logical Volume......................................................................107
3.9.2 Administering dump Logical Volumes on non-root VGs.................................................107
3.10 Managing swap/dump on Logical volumes from non-root VG..............................................107
3.11 Creating and Administering Snapshot Logical Volumes.......................................................108
3.11.1 Types of Snapshots..................................................................................................109
3.11.2 Creating a Snapshot Logical Volume.........................................................................109
3.11.3 Removing Snapshot Logical Volumes..........................................................................109
3.11.4 Displaying Snapshot Information...............................................................................110
3.12 Managing the lvmpud Daemon.......................................................................................111
3.13 Managing boot disks of size greater than 2 TB .................................................................111
3.13.1 Administration of boot disks of size greater than 2 TB .................................................112
3.13.2 Compatibility of boot disks of size greater than 2 TB...................................................112
3.13.3 Software Requirements............................................................................................112
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