Re: huge filesystems

[jmerkey <jmerkey@utah-nac.org>]

Andrew Morton wrote:

>jmerkey <jmerkey@utah-nac.org> wrote:
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>>I am running the DSFS file system as a 7 TB file system on 2.6.9.
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>On a 32-bit CPU?
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Yep.

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>>There are a host of problems with the current VFS,
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>I don't recall you reporting any of them.  How can we expect to fix
>anything if we aren't told about it?
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I report them when I can't get around them myself. I've been able to get
around most of them.

>>ad I have gotten around most of them 
>> by **NOT** using the linux page cache interface.
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>Well that won't fly.
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For this application it will.

>The VFS should support devices up to 16TB on 32-bit CPUs.  If you know of
>scenarios in which it fails to do that, please send a bug report.
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Based on the changes I've mode to it locally for my version of 2.6.9, it
now goes to
1 zetabyte (1024 pedabytes). Largest one I've configured so far with
actual storage
is 128 TB, though. Had to drop the page cache and replace though -- for now.


Jeff