Re: huge filesystems

[jmerkey]

Andrew Morton wrote:

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

Yep.

>  
>
> > There are a host of problems with the current VFS,
> >    
>
> I don't recall you reporting any of them.  How can we expect to fix
> anything if we aren't told about it?
>
>  
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.
> >    
>
> Well that won't fly.
>
>
>  
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.
>
>
>  
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


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