On Tue, 2007-05-29 at 18:48 -0700, Richard Elling wrote:
> The belief is that COW file systems which implement checksums and data
> redundancy (eg, ZFS and the ZFS copies option) will be redundant over
> CF's ECC and wear leveling *at the block level.* We believe ZFS will
> excel in this area, but has limited bootability today. This will become
> more interesting over time, especially when ZFS boot is ubiquitous.
I suspect that an interesting config would put the boot archive and not
much else on the CF, and the "live" root and anything else that needs
regular updates in a main zfs pool on disk. Something like the original
zfs_mountroot approach would be involved - and that allowed the pool
containing the root to exist in a fully general pool, not limited to the
zfs boot config.
That would further reduce both the size of CF required and the frequency
of updates to it..
- Bill
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