Just 2 pence worth to the discussion; a) Hardware solutions like the 3ware ones only need to use the PCI bus once for a read/write, whilst the software solution will need to chat to each disk controller for each disk as I understand. On most file servers this is not an issue, but might be on a monster mythbox!
b) I've used software raid without issue for years - and have moved disks from hosts that died without issue. So unless you have muliple controlers beware a controler dying and leaving you stranded. c) Never underestimate the power of a good restoration (and associated good backups, but you do test you backups with a restore right!) d) These days get a USB enclosure with a 200~300Gb drive, or use anotherhost to send backups to... "cheap as chips " compared to DAT tapes, ot the hassel of loads of DVD's - plus you can take the USB drive off site, or remove the disk and cycle it with another. The realms of backup parania are amazing. Less than 1 pence (sterling) per point, which has to be a bargain, even with the dollar at such a low rate! Greg
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