[OpenAFS] Windows Client, quota and filemanager - no warning!

[Jeffrey Altman]

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AFS is made up of volumes.  CIFS file shares are contiguous disks.
It is not possible to report to Windows a different quantity of
disk space, free space, etc. on a per directory basis.

JPSoftware is the only vendor I am aware of that has added OpenAFS
support to their tools: 4NT and TakeCommand.   JPSoftware calls the
AFS pioctl() functions to obtain information about the true size of
volumes, the amount of free space, and quota limitations.

This is not a bug in OpenAFS.  This is a limitation of the CIFS to
AFS gateway model used to implement the Windows client that can be
worked around by application vendors if they choose to support AFS
as a file system.

Jeffrey Altman


Lars Schimmer wrote:
> Hi!
> 
> One annoying problem with the windows client:
> It seems not to pass the quota to the filemamagers.
> E.G.: user a tries to write a 1 GB file to a volume with 400 MB quota.
> User tries to use totalcommander or xplorer2. After it has copied 400 MB
> the software shows "transfered 400 MB, 600 MB to go at XYZ MB/sec".
> The first 400 MB it shows a sustained rate about 3-5 MB/sec. But if the
> quota is reached it drops down to 0 kb/sec and it waits and waits and
> waits... Still after some hour it shows up "copy file".
> Why can't it be so "intelligent" to tell the user "quota is reached, no
> more space on HD" ?
> 
> I got the error reports from the users "OpenAFS is buggy, it doesn't
> work" - just because the quota was reached and NO suitable warning appeared.
> Client: 1.4.0 final.
> 
> Cya
> Lars
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