On Thu, Sep 15, 2005 at 03:52:24PM -0500, Dan Littlejohn wrote: > Another vote for RAID5 with XFS. I stayed away from LVM so I could > run XFS without worrying. Used an old 600Mhz box and a hardware RAID > controller, and mounted it with nfs. Can replace the controller if it > fails, replace a drive that fails, and expand the array on line. > Maybe I am deluding myself because I do not understand all the details > of LVM and the potential for XFS to corrupt, but I have been more than > happy with this setup and it is in heavy usage. > > When they get on-line expansion working for adding devices (as I > learned they are working on above) for software RAID, I think that > would be my preference (most recoverable and cheapest).
... Just a few questions, for fun, and to get you to think. :) Food for thought and nothing is meant to criticize, just to make a few points. What if you delete a file you needed by accident? Or if the power supply goes bad and fries the circuit boards on a two+ drives. What raid controller is it too? .. Are you sure you can still buy the same model, as you can't just swap an older 3ware raid card with a newer one and have it recognize the raid drives properly, and if the card goes out how much downtime will that be? How much does a new raid card cost? What if the computer is stolen, the home floods, or burns? Just how important is the data? You may have a way around one of these problems, maybe a few of these, but how about every last possiblity, or where do you draw the line? Can you admit that regardless of how complex your setup is, it's only as strong as its weakest link, and you likely don't know or won't admit that weakest link? What exactly are you achieving by using raid5? Does the phrase Raid5 make you feel invinsible? I've had personal experience or direct relations with companies who've faced every one of those problems above. If reliablity is what you want Raid5 alone is not a solution. I personally think that there will always be a good share of people who will want to use Raid5 (Maybe not what they need though). I also have a strong opinion that raid is being sensationalized in use for Myth or any media center. If you disagree that's completely fine with me. :) .. Let me know what you're doing in a couple years though. --Brandon
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