[OpenAFS] max afs partition size

Jeffrey Altman jaltman@secure-endpoints.com
Mon, 14 Jan 2008 14:43:43 -0500


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My guess is that 5.4TB is larger than the maximum partition size that 
can be reported in DiskPartitionStats and you are therefore seeing a 
partition used calculation that is inaccurate.

The DiskPartitionStats for free blocks, usable blocks, etc. are reported
as a 32-bit signed integer with a block size of 1K.  Effectively 
anything larger than 2TB is going to give inaccurate results.

A 5.4TB partition will therefore appear to be a 1.4TB partition which is 
what you see reported below.

Jeffrey Altman
Secure Endpoints Inc.

sabah salih wrote:
>  Dear All,
>        I have a 5.4 TB fileserver. running
>  OpenAFS 1.4.4
> 
> rxdebug -version afs6
> 
> Trying 194.36.2.8 (port 7000):
> AFS version:  OpenAFS 1.4.4 built 2007-06-07 (1.4.4-46.SL4@yort.fnal.gov)
> 
> 
> df -h /vicepc
> 
> Filesystem            Size  Used Avail Use% Mounted on
> /dev/sdb              5.4T  1.2T  4.1T  23% /vicepc
> 
> I wont to make use of the 5.4 TB in one partition.
> When I installed the server I thought I have done it.
> 
> However I did "fs lq" today and saw this
> 
> fs lq /afs/hep.man.ac.uk/u/sabah
> Volume Name                   Quota      Used %Used   Partition
> sabah                      12000000  10272814   86%         93%
> 
> which shaw that "93%" of the partition is been used. However this is
> not true as the "df" output showes only 1.2 TB been used.
> 
> 
> vos part afs6
> Free space on partition /vicepa: 9545880 K blocks out of total 9568420
> Free space on partition /vicepb: 19091936 K blocks out of total 19137032
> Free space on partition /vicepc: 100447752 K blocks out of total 1351294948
> 
> 
> I do not know how to fix this please.
> Please help.
> 
> Many thanks, Sabah.
> *********************************************************
> *    From Sabah Salih                *
> *    The School of Physics and Astronomy,        *
> *    The University of Manchester,            *
> *     Schuster Laboratory,                *
> *    Brunswick Street,                *
> *    Manchester M13 9PL.                *
> *     Tel: +44 1612754171 or  x4171            *
> *     E-mail: sabah.salih@manchester.ac.uk        *
> *                            *
> *********************************************************
> 
> _______________________________________________
> OpenAFS-info mailing list
> OpenAFS-info@openafs.org
> https://lists.openafs.org/mailman/listinfo/openafs-info

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