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We have previously documented that volumes over 2TB can result in inaccuracies, but this documentation does not say how the 'partition' field in "fs listquota" can be inaccurate. It is confusing to see a usage of 0% for a partition that you know is being used, so try to briefly explain in what way this field is inaccurate. The reason we _under_-report the partition usage is that the fileserver actually gives back PartBlocksAvail and PartMaxBlocks (not "blocks used" and "blocks total"). So 1TB used and 4TB total is truncated to 2TB and given back as 2TB free and 2TB total. One we hit 3TB used we'll report it as 1TB free 2TB total (50%) when the actual usage is 75%. Change-Id: I0b3de04ef2bd6cd32fdcb1a82cbac58d5d621e5b Reviewed-on: http://gerrit.openafs.org/11245 Reviewed-by: Benjamin Kaduk <kaduk@mit.edu> Tested-by: BuildBot <buildbot@rampaginggeek.com>
134 lines
3.7 KiB
Plaintext
134 lines
3.7 KiB
Plaintext
=head1 NAME
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fs_listquota - Displays quota information for a volume
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=head1 SYNOPSIS
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=for html
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<div class="synopsis">
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B<fs listquota> S<<< [B<-path> <I<dir/file path>>+] >>> [B<-human>] [B<-help>]
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B<fs listq> S<<< [B<-p> <I<dir/file path>>+] >>> [B<-hu>] [B<-he>]
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B<fs lq> S<<< [B<-p> <I<dir/file path>>+] >>> [B<-hu>] [B<-he>]
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=for html
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</div>
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=head1 DESCRIPTION
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The B<fs listquota> command displays information about the volume
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containing each specified directory or file (its name, quota, and amount
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of disk space used), along with an indicator of the percentage of space
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used on the host partition.
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To display more information about the host partition, use the B<fs
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examine> command.
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To set volume quota, use the B<fs setquota> or B<fs setvol> command.
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=head1 CAUTIONS
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=include fragments/volsize-caution.pod
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=head1 OPTIONS
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=over 4
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=item B<-path> <I<dir/file path>>+
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Names a file or directory that resides in the volume about which to
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produce output. Partial pathnames are interpreted relative to the current
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working directory, which is also the default value if this argument is
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omitted.
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=item B<-human>
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Print space in a "human-readable" format. Instead of always printing space
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in kilobytes, show disk space in kilobytes, megabytes, gigabytes,
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terabytes, or petabytes, as appropriate.
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=item B<-help>
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Prints the online help for this command. All other valid options are
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ignored.
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=back
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=head1 OUTPUT
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The output displays information about the volume that houses each
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specified directory or file, in a tabular format that uses the following
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headers:
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=over 4
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=item Volume Name
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The name of the volume.
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=item Quota
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The volume's quota in kilobytes, or the string C<no limit> to indicate an
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unlimited quota.
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=item Used
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The amount of space used. If B<-human> is not specified, this value is in
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kilobytes.
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=item % Used
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The percentage of the volume's quota that is used (the C<Used> statistic
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divided by the C<Quota> statistic, times 100).
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=item Partition
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The percentage of space used on the partition that houses the
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volume. Although not directly related to how much of the user's quota is
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used, it is reported because a full partition can cause writing of data
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back to the volume to fail even when the volume has not reached its quota.
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Note that due to limitations in the current wire protocol, OpenAFS cannot
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accurately calculate this field for partitions over 2 terabytes (2^41 bytes)
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in size. As a result, the percentage displayed in this field may be smaller
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than reality. For example, if the partition has over 2 terabytes (2^41 bytes)
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free, B<fs listquota> will report the partition usage as 0%. If the partition
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has less than 2 terabytes (2^41 bytes) free, but is larger than 2 terabytes
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(2^41 bytes) in size, the reported partition usage will be larger than
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0%, but will still be less than the actual usage.
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=back
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=head1 EXAMPLES
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The following example shows the output for the volume C<user.smith>:
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% fs listquota -path /afs/example.com/usr/smith
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Volume Name Quota Used % Used Partition
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user.smith 15000 5071 34% 86%
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=head1 PRIVILEGE REQUIRED
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The issuer must have the C<r> (read) permission on the ACL of the root
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directory of the volume that houses the file or directory named by the
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B<-path> argument, and C<l> (list) permission on the ACL of each
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directory that precedes it in the pathname.
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=head1 SEE ALSO
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L<fs_diskfree(1)>,
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L<fs_examine(1)>,
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L<fs_quota(1)>,
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L<fs_setquota(1)>,
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L<fs_setvol(1)>
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=head1 COPYRIGHT
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IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved.
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This documentation is covered by the IBM Public License Version 1.0. It was
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converted from HTML to POD by software written by Chas Williams and Russ
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Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.
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