From: sheldon@iastate.edu (Steve Sheldon) Subject: Re: Disk Quotas (was Re: New feature for the filesystems.) Date: Thu, 15 Apr 1993 19:41:51 GMT
In <s_fuller.734838052@vincent2.iastate.edu> s_fuller@iastate.edu (Steve Fuller) writes:
>It would seem to me, from a new sysadmin standpoint, to have
>anyone but root able to use chown. At least that's how it's done
>here on the Ultrix systems at our site. Our system works as
>follows as far as quotas:
I think you mean, only root can use chown. This is common at most sites, I
think.
>1) If the file is in the middle of a write when you exceed your
>quota, the file will be written in its entirety and not
>truncated. Any furthur write requests will be denied
Steve is correct, except that he forgot to point out that here he is talking
about the Andrew File System which ISU uses, a.k.a. AFS.
AFS goes way beyond a typical filesystem tho, and isn't something you'd
probably want to implement with Linux.
Actually though, there is a hard limit in that if the file exceeds your
quota amount by less than 1 Meg it will let you write it out. If it exceeds
your quota amount by more than 1 Meg it will return an error:
>afs: failed to store file (over quota)
You also get this message anytime you are over quota and try to write
another file. It's not a particularly friendly environment, and is really
only used to establish quota's for the undergraduate students. The research
staff and faculty are on NFS mounted disks, and they will begin using the
standard BSD quota system in the next month or two.
-- sheldon@iastate.edu Steve Sheldon copyright 1993 This signature is Shareware ICSS Resource Unit This .sig is Please send $25 to this address ------> 2142 Agronomy Hall Shareware! Please remember, this is Shareware! Iowa State University Shareware! :-)