One-Time Migration of a File System
The following example describes a one-time migration of data from the . Some of the following steps require a backup of the file system to be created. To simplify the process, you can create one backup before performing any of the steps instead of creating multiple backups as you go.
To perform a one-time migration
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If the underlying Volume Manager storage is not contained in a CDS disk group, it must first be upgraded to be a CDS disk group, and all other physical considerations related to migrating the storage physically between systems must first be addressed as described in Setting up Your System.
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If the file system is using a disk layout version prior to 6, upgrade the file system to Version 6. See the Storage Foundation Installation Guide for information on upgrading the file system to disk layout Version 6.
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Ensure that there are no files in the file system that will be inaccessible after migrating the data due to large file size or user/group id platform differences:
# fscdstask validate OS mount_point
If such files exist, move the files to another file system or reduce the files' sizes.
Note
There is no output if no limits are exceeded.
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Unmount the file system:
# umount mount_point
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Use the fscdsconv command to convert the file system to the opposite endian, if required. See Converting a File System.
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Make the physical storage and Volume Manager logical storage accessible on the Linux system by exporting the disk group from the source system and importing the disk group on the target system after resolving any other physical storage attachment issues. See Maintaining Your System for more information.
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Mount the file system on the target system.
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