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Re: Home directories

* Sellers <email@hidden> [2004-04-13 07:26] wibbled:
> Are you using AFS to mount the directories or are you using AFP (often
> Netatalk)? For your library folder, it sounds like either the
> extended attributes are getting corrupted or as the file system fills
> up - they are getting lost cause the file system/homedir is over
> quota.

This is a minor pet peeve of mine: AFS != AFP. People often assume
that I am talking about AFP when I am talking about AFS. People often
assume that I am talking about AFP when I am talking about AFS.

> Some people say to get around this is to allow grace on the quota -
> where someone can go over quota for a day - or two before the quota is
> enforced. (thus it allows them to login and remove files).

AFS has a little bit of this built-in; I'm not sure if the amount is
configurable or not.

> You could also have it check quota with a login hook or script - and
> if they are over a certain point - then show a dialog box and then
> have them login some other way to get rid of the files. (i.e. if they
> reach 95% make them remove files)

This sounds like the best solution. Along with that, maybe send
emails warning about disk usage as it nears capacity.

- Ben


> Sellers
>
> On Apr 12, 2004, at 7:50 PM, Surajit A Bose wrote:
>
> >Hello gang.
> >
> >I have a few questions regarding home directories. Stanford currently
> >gives each user a 100MB AFS mounted network space. Our LDAP servers
> >are set up such that when a user logs into a lab Mac, this space is
> >used as the home directory. We've encountered a few problems in this
> >setup.
> >
> >For example, if a user is close to full on their disk quota, login
> >hangs, or if it completes, the user experiences random application
> >crashes. Also, ~/Library/Preferences randomly gets corrupted for some
> >users, showing up as a file instead of a directory and causing much
> >consternation. Finally, we're on 10.2.8 right now, but in our
> >development of a Panther image for the fall, we've discovered that
> >opening a file in AFS space, modifying it, and trying to save it
> >results in a kernel panic on occasion: invariably when using
> >SubEthaEdit, randomly when using Microsoft Word. (Our AFS folks tell
> >me that this is due to some weird interaction between the Panther
> >Finder and OpenAFS, but that isn't too helpful when it comes to
> >resolving the issue.)
> >
> >All this is causing us to rethink our current model. We're
> >considering creating local home directories on the fly and erasing
> >them on logout. This raises some questions for us:
> >
> >1. Since applications by default save documents in the home
> >directory, users could potentially work on a paper for hours, think
> >it's saved, log out....and lose the document.
> >
> >2. The current setup allows users to set their own desktop
> >background, download applications and run them from their home
> >directories, preserve application preferences/fonts, etc. All this
> >would go away.
> >
> >My questions: how do folks that create local home directories on the
> >fly handle these issues? Have there been other problems with this
> >setup for which I should be on the lookout?
> >
> >I'd also like to hear from folks who are using network home dirs.
> >Right now the only other place I know that does the same thing as
> >Stanford is Notre Dame, and I'm trying to get in touch with the folks
> >there. But if you are using network home dirs, I'd be grateful to
> >hear about your experiences.
> >
> >If you'd like to e-mail me directly, I will summarize and post to the
> >list.
> >
> >Thanks, -s --
> >
> >"Don't shoot until you see the whites of their eggs."
> >
> >Surajit A. Bose Cluster Operations Manager Stanford University
> >650.725.2939 _______________________________________________
> >maclabmanager mailing list | email@hidden
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> >
> >
> Chris G. Sellers Systems Programmer II Oakland University -
> University Technology Services - 220 DHE AIM : sellersOU WWW:
> www.oakland.edu/uts _______________________________________________
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--
/--
| Ben Staffin
perpetual nerd |
--/
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References: 
 >Home directories (From: Surajit A Bose <email@hidden>)
 >Re: Home directories (From: Sellers <email@hidden>)



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