Messages in this thread | | | Date | Fri, 17 Oct 2003 21:37:57 +0200 | From | Jakob Oestergaard <> | Subject | Re: Software RAID5 with 2.6.0-test |
| |
On Fri, Oct 17, 2003 at 09:18:24PM +0200, Måns Rullgård wrote: > Samuel Flory <sflory@rackable.com> writes: ... > > many clock cycles availble to it. It's even worse when you realize > > the 2Ghz xeon is a better proccessor in many more ways than just > > clock cycles. > > How about this logic: > > 1) If the processor on the RAID controller can handle the full > bandwidth of the disks, it's fast enough. > 2) If someone else does the 10% work, the CPU can do 10% more work.
3) You have a four year old machine - one day the RAID controller dies. The company that produced it has been acquired by someone else, and the product is no longer availble. Can you get a new adapter with firmware that can actually read your disks? Or are your data lost? Can you find a replacement controller on e-bay? And would you want to?
Anyway, not wanting to spread more FUD than stricly necessary: It's a matter of cost/benefit and risk management. Everyone has their personal preferences on this - and even if it wasn't so, let's not begin to pretend that there is a simple answer to what's "best".
-- ................................................................ : jakob@unthought.net : And I see the elder races, : :.........................: putrid forms of man : : Jakob Østergaard : See him rise and claim the earth, : : OZ9ABN : his downfall is at hand. : :.........................:............{Konkhra}...............: - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |