On 12-Dec-08, at 3:38 PM, Johan Hartzenberg wrote:
...
The only bit that I understand about why HW raid "might" be bad is
that if it had access to the disks behind a HW RAID LUN, then _IF_
zfs were to encounter corrupted data in a read, it will probably be
able to re-construct that data. This is at the cost of doing the
parity calculations on a general purpose CPU,
Except that it's not just parity - ZFS checksums where RAID-N does
not (although I've heard that some RAID systems checksum "somewhere"
- not end-to-end of course).
Call me a fanboy if you will, but ZFS is different from hw RAID. I am
not an "automatic denier" of ZFS bugs or flaws, but I do acknowledge
it's more revolution than evolution. It's software. We only need be
patient while it matures. :)
--Toby
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