multi terabyte disk arrays

	I'm not sure if this is an NFS restriction or an actual
userland utility restriction, but I have a 4-STABLE machine NFS
mounting a 5.1-RELEASE machine that is exporting an approximately
1.6T disk array, and df on my 4-STABLE machine gives:
---
host:/home2 -508991530 159283464 -668274994   -31% /home2

	The more I think about it, I'm almost certain it's just
an NFS limit of some kind I'm seeing, but just in case anyone
cares, I'm asking about it here.

-- 
Mark Nipper                                                e-contacts:
Computing and Information Services                      [e-mail]
Texas A&M University                        http://ops.tamu.edu/nipsy/
College Station, TX 77843-3142     AIM/Yahoo: texasnipsy ICQ: 66971617
[phone]                                      MSN: [e-mail]

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> -------------------------------------------------------------------------- <

發信人: [e-mail] (Doug White), 看板: FB_stable
標  題: Re: multi terabyte disk arrays
發信站: NCTU CSIE FreeBSD Server (Wed, 22 Oct 2003 22:21:58 +0000 (UTC))
轉信站: ptt!FreeBSD.csie.NCTU!not-for-mail

On Fri, 22 Aug 2003, Mark Nipper wrote:

> 	I'm not sure if this is an NFS restriction or an actual
> userland utility restriction, but I have a 4-STABLE machine NFS
> mounting a 5.1-RELEASE machine that is exporting an approximately
> 1.6T disk array, and df on my 4-STABLE machine gives:
> ---
> host:/home2 -508991530 159283464 -668274994   -31% /home2

Based on a recent discussion, this is a limitation of statfs, which uses
32 bit counters.  kirk wants to make a new 64-bit statfs to fix this
problem. Stay tuned.

Your filesystem is fine, just the numbers will be a little wonky. :)

-- 
Doug White                    |  FreeBSD: The Power to Serve
[e-mail]          |  www.FreeBSD.org
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> -------------------------------------------------------------------------- <

發信人: [e-mail] (Jamie Bowden), 看板: FB_stable
標  題: Re: multi terabyte disk arrays
發信站: NCTU CSIE FreeBSD Server (Thu Oct 23 20:43:22 2003)
轉信站: ptt!FreeBSD.csie.NCTU!not-for-mail

On Wed, 22 Oct 2003, Doug White wrote:

> On Fri, 22 Aug 2003, Mark Nipper wrote:
>
> > 	I'm not sure if this is an NFS restriction or an actual
> > userland utility restriction, but I have a 4-STABLE machine NFS
> > mounting a 5.1-RELEASE machine that is exporting an approximately
> > 1.6T disk array, and df on my 4-STABLE machine gives:
> > ---
> > host:/home2 -508991530 159283464 -668274994   -31% /home2
>
> Based on a recent discussion, this is a limitation of statfs, which uses
> 32 bit counters.  kirk wants to make a new 64-bit statfs to fix this
> problem. Stay tuned.
>
> Your filesystem is fine, just the numbers will be a little wonky. :)

Irix has an option flag for exports called '32bitclients' to go along with
its 64bit clean systems, to avoid problems like this when exporting to
32bit machines.  It may be a good idea to do something similar if/when Dr.
M. gets around to doing this.

Jamie Bowden

-- 
"It was half way to Rivendell when the drugs began to take hold"
Hunter S Tolkien "Fear and Loathing in Barad Dur"
Iain Bowen <[e-mail]>


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