The GID selection rules for account creation are Linux distribution specific. It sounds like you are familiar with Red Hat, where I think this idea of GID=UID started.
sles12sp1-brc:/dev/disk/by-uuid # useradd testout sles12sp1-brc:/dev/disk/by-uuid # grep testout /etc/passwd testout:x:1001:100::/home/testout:/bin/bash sles12sp1-brc:/dev/disk/by-uuid # grep 100 /etc/group users:x:100: sles12sp1-brc:/dev/disk/by-uuid # Cheers, Greg -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Jaime Pinto Sent: Thursday, 4 August 2016 2:56 AM To: gpfsug main discussion list <[email protected]>; Jonathan Buzzard <[email protected]> Cc: [email protected] Subject: Re: [gpfsug-discuss] quota on secondary groups for a user? I guess I have a bit of a puzzle to solve, combining quotas on filesets, paths and USR/GRP attributes So much for the "standard" built-in linux account creation script, in which by default every new user is created with primary GID=UID, doesn't really help any of us. Jaime Quoting "Jonathan Buzzard" <[email protected]>: > On 03/08/16 17:22, Jaime Pinto wrote: >> Suppose I want to set both USR and GRP quotas for a user, however GRP >> is not the primary group. Will gpfs enforce the secondary group quota >> for that user? > > Nope that's not how POSIX schematics work for group quotas. As far as > I can tell only your primary group is used for group quotas. It > basically makes group quotas in Unix a waste of time in my opinion. At > least I have never come across a real world scenario where they work > in a useful manner. > >> What I mean is, if the user keeps writing files with secondary group >> as the attribute, and that overall group quota is reached, will that >> user be stopped by gpfs? >> > > File sets are the answer to your problems, but retrospectively > applying them to a file system is a pain. You create a file set for a > directory and can then apply a quota to the file set. Even better you > can apply per file set user and group quotas. So if file set A has a > 1TB quota you could limit user X to 100GB in the file set, but outside > the file set they could have a different quota or even no quota. > > Only issue is a limit of ~10,000 file sets per file system > > > JAB. > > -- > Jonathan A. Buzzard Email: jonathan (at) buzzard.me.uk > Fife, United Kingdom. > _______________________________________________ > gpfsug-discuss mailing list > gpfsug-discuss at spectrumscale.org > http://gpfsug.org/mailman/listinfo/gpfsug-discuss > ---------------------------------------------------------------- This message was sent using IMP at SciNet Consortium, University of Toronto. _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss
