Messages in this thread | | | From | "Frantisek Rysanek" <> | Date | Mon, 10 Mar 2008 05:32:48 +0100 | Subject | Re: block layer / FS question: x86_32bit with LBD, 20 TB RAID volume => funny issues |
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On 9 Mar 2008 at 23:05, David Chinner wrote: > > Sure. the largest address space that can be used on a 32bit platform > with 4k pages is 16TB (2^32 * 2^12 = 2^44 = 16TB). For XFS, that means > metadata can't be placed higher in the filesystem than 16TB, and seeing > as we only have a single address space for metadata, the filesystem is > limited to 16TB. It could be fixed with software changes, but really > there's no excuse for using x86 given how cheap x86_64 is now..... > [...] > > Yes, switching to 64 bit machines will fix this problem as the > address space will now hold 2^64*2^12 bytes..... > wow, thanks for such a precise answer, from such an authoritative source :-)
Frank Rysanek
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