> Do they take the pool offline while they migrate data to the new device in > the RAID stripe or do they do this online?
I think they (readynas, drobo, Linux mdadm) can do it online, but either way, getting the job done is what matters most. I'm talking about small consumer systems here, so single user backup devices or small office backup servers. They could handle going offline overnight to upgrade the redundant storage. > How would you propose this work with ZFS? Since expanding RAID5 striping with parity is pretty straightforward, I figured ZFS was just a more complex spin on the standard. I assumed the minds behind ZFS at Sun had the implementation details under control. Because if you need me to do it for you, we're all screwed :) -- This messages posted from opensolaris.org
