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Linux and 4K disk sectorsLinux and 4K disk sectorsPosted Mar 12, 2009 20:23 UTC (Thu) by Thue (subscriber, #14277)Parent article: Linux and 4K disk sectors Why bother with a new block-level abstraction, instead of just skipping a generation and implementing a object storage interface?
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Linux and 4K disk sectors Posted Mar 12, 2009 22:18 UTC (Thu) by willy (subscriber, #9762) [Link]
Object storage is, so far, an unproven, interesting, exciting paradigm. I wouldn't like to trust my data to it today. The 4k sector drives are coming *soon* (I don't think I can say exactly when). OSDs have been in development for at least ten years, and don't show any signs of getting traction any time soon.
Linux and 4K disk sectors Posted Mar 12, 2009 23:22 UTC (Thu) by quotemstr (subscriber, #45331) [Link]
Object storage? Meh. What makes you believe that disk firmware can do a better job of allocating blocks than a filesystem can?
Linux and 4K disk sectors Posted Mar 13, 2009 10:47 UTC (Fri) by gnb (subscriber, #5132) [Link]
It does have the advantage of more information: it knows the real geometry of
the disk, as well as whether or not a given block is actually remapped to somewhere completely different. So *in principle* I can imagine it managing to allocate for better performance.
Linux and 4K disk sectors Posted Mar 13, 2009 20:37 UTC (Fri) by Thue (subscriber, #14277) [Link]
It would also give the hardware manufacturers total freedom to reimplement the hardware, which is generally a good feature of an interface.
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