I thought I'd ask if
anyone else is thinking of this: merging disks and partitions at the
filesystem level rather than the block device level.
The advantages that come to mind:
- If a disk is lost, only the files belonging to it are lost,
instead of the whole logical volume.
- Copying a component volume to another one is easier, and can
be done without any outage to the filesystem at large.
- Portions of the filesystem can be backed up instantly by
mandating for example that /home belong to two component
filesystems that are simple copies of each other.
- Facile interface for snapshots.
- Component filesystems that can be set read-only.
Disadvantages:
Getting unionfs/aufs to DTRT in this context.
Omri Schwarz --- ocschwar@xxxxxxx
Timeless wisdom of biomedical engineering: "Noise is principally
due to the presence of the patient." -- R.F. Farr
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