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This chapter provide some more details about volumes. For even more details, see the AFS User's Guide, or the AFS Command Reference Guide.
To examine the quota on a volume within AFS, the `fs listquota' command may be used. `fs listquota' responds with the name of the volume containing the specified directory, the quota size, amount used, percent used, and the percent of space used on the partition containing the volume.
% fs lq /afs/nih/src/X11R5/mit /usr/local/gnu Volume Name Quota Used % Used Partition src.X11R5.mit 250000 201262 81% 41% pmax_ul4.usr.local.gnu 40000 28873 72% 31%
All sizes are in kilobytes.
You may find out if a particular directory, or list of directories, is a mount point using the `fs lsmount' command.
% cd /afs/nih/@sys/usr/local % fs lsm TeX X11 courier_database gnu man 'TeX' is a mount point for volume '#pmax_ul4.usr.local.TeX' 'X11' is a mount point for volume '#pmax_ul4.usr.local.X11' 'courier_database' is not a mount point. 'gnu' is a mount point for volume '#pmax_ul4.usr.local.gnu' 'man' is a mount point for volume '#pmax_ul4.usr.local.man'
This output shows that all of the directories listed except `courier_database' are mount points for volumes. One can then use `fs lq' to get information about the quotas of the various volumes.
You may find out what machine, or machines, have copies of a file (or, more accurately, it's containing volume) using the `fs whereis' command. For example:
% fs whereis /usr/local/show /afs/nih/src/afs File /usr/local/show is on hosts parker quays File /afs/nih/src/afs is on host parker
Note that any volume which is replicated, such as the one containing `/usr/local', is read-only. If you need to access the read-write copy of the volume, you should contact the System Administrator for instructions.
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