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Data is stored on the system in many possible ways. In any case, a container is needed, whether it be an entire disk, part of a disk, or combined disks.
Typical Linux installations create disk partitions,and most put all the system data and programs in a single "root" filesystem. AIX uses Logical Volume Manager (LVM) and breaks down the data into multiple filesystems - much more flexible but not necessarily providing the nest performance or availability.
There are a lot better ways to organize the system, providing better I/O performance, reliability and availability. Unfortunately, getting there can be a daunting, if not impossible task. How do you migrate existing filesystems (including root) to logical volumes? How could you better organize the system by splitting the root filesystem into multiple filesystems, then increase system system availability using Software RAID?
The answer is SBAdmin. There really is no way to migrate a "live" system to a different sorage configuration, but you can use anSBAdmin Full System Backup to reinstall the system from scratch, reconfiguring it in the process. Only SBAdmin's System Recovery Process can:
On Linux:
Migrate from disk partitions to Logical Volumes or Software RAID
Move partitions or logical volumes to different disks
Split a single filesystem into multiple filesystems
Change filesystem types, sizes and other attributes
Reduce filesystems, partitions, logical volumes or RAID devices to reclaim disk space
Add new volume groups, logical volumes, RAID devices & filesystems
Move partitions between disks or logical volumes between volume groups
Change filesystem types (ext2, ext3, JFS, Reisergs, XFS & VFAT supported!)
Import instead of restore voume groups that don't need to be restored
Split single filesystems into multiple filesystems
Add or remove mirroring or striping
Convert partition-based filesytems to logical volumes or software RAID
Convert to RAID 1+0 using RAID on RAID or RAID on LVM!
On AIX:
Reduce filesystem or logical volumes to reclaim disk space
Move logical volumes and filesystems to different volume groups or disks
Import instead of restore voume groups that don't need to be restored
Rename volume groups or filesystems
Change mount points of filesystems
Split single filesystems iinto multiple filesystems
Add or remove mirroring or striping
Selectively create new or previous volume groups without restoring data
Convert filesystems from JFS to JFS2, change to use inline JFS logging, etc.
This is only a little of what SBAdmin can do. In fact, there is little you can do to configure your storage that can't be changed when reinstallling from a SBAdmin backup.
Check out some examples of the SBAdmin System Installation and Maintenance Menus.
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