InfoScale™ 9.0 Solutions Guide - AIX
- Section I. Introducing Veritas InfoScale
- Section II. Solutions for Veritas InfoScale products
- Section III. Stack-level migration to IPv6 or dual stack
- Section IV. Improving database performance
- Overview of database accelerators
- Improving database performance with Veritas Quick I/O
- About Quick I/O
- Improving database performance with Veritas Cached Quick I/O
- Improving database performance with Veritas Concurrent I/O
- Section V. Using point-in-time copies
- Understanding point-in-time copy methods
- Backing up and recovering
- Preserving multiple point-in-time copies
- Online database backups
- Backing up on an off-host cluster file system
- Database recovery using Storage Checkpoints
- Backing up and recovering in a NetBackup environment
- Off-host processing
- Creating and refreshing test environments
- Creating point-in-time copies of files
- Section VI. Maximizing storage utilization
- Optimizing storage tiering with SmartTier
- Optimizing storage with Flexible Storage Sharing
- Optimizing storage tiering with SmartTier
- Section VII. Migrating data
- Understanding data migration
- Offline migration of native volumes and file systems to VxVM and VxFS
- Converting LVM volume groups to VxVM disk groups
- Conversion of JFS and JFS2 file systems to VxFS
- Conversion steps explained
- Examples of using vxconvert
- About test cases
- Converting LVM, JFS and JFS2 to VxVM and VxFS
- Online migration of native LVM volumes to VxVM volumes
- Online migration from LVM volumes in standalone environment to VxVM volumes
- Online migration from LVM volumes in VCS HA environment to VxVM volumes
- Online migration of a native file system to the VxFS file system
- Migrating a source file system to the VxFS file system over NFS v3
- VxFS features not available during online migration
- Migrating storage arrays
- Migrating data between platforms
- Overview of the Cross-Platform Data Sharing (CDS) feature
- CDS disk format and disk groups
- Setting up your system to use Cross-platform Data Sharing (CDS)
- Maintaining your system
- Disk tasks
- Disk group tasks
- Displaying information
- File system considerations
- Specifying the migration target
- Using the fscdsadm command
- Maintaining the list of target operating systems
- Migrating a file system on an ongoing basis
- Converting the byte order of a file system
- Section VIII. Veritas InfoScale 4K sector device support solution
Initializing unused LVM physical volumes as VxVM disks
LVM disks that are not part of any volume group and contain no user data are cleaned up, so that there are no LVM disk headers. Then the disks are put under VxVM control through the normal means of initializing disks.
Warning:
You must be absolutely certain that the disks are not in use in any LVM configuration. If there is any user data on these disks, it will be lost during initialization.
To initialize unused LVM physical volumes as VxVM disks
- Remove the LVM disk header information from the disks, using the following command:
# chpv -C diskname
where diskname is any physical disk, such as hdisk4.
- Initialize the disk for VxVM use, in one of the following ways:
Use the vxdiskadm command and select the option:
1) Add or initialize one or more disks
Or use the command:
# /etc/vx/bin/vxdisksetup -fi disk_name
VxVM utilities will not tamper with disks that are recognized as owned by LVM (by virtue of the LVM VGRA disk headers). The vxdisksetup or vxdiskadm commands fail if you attempt to use them on an LVM disk without first using the chpv command.