[gpfsug-discuss] Quota and hardlimit enforcement

[Buterbaugh, Kevin L]

Jaime,

That’s heavily workload dependent.  We run a traditional HPC cluster and have a 7 day grace on home and 14 days on scratch.  By setting the soft and hard limits appropriately we’ve slammed the door on many a runaway user / group / fileset.  YMMV…

Kevin

On Jul 31, 2017, at 3:03 PM, Jaime Pinto <pinto at scinet.utoronto.ca<mailto:pinto at scinet.utoronto.ca>> wrote:

If your grace period is set to 7 days I can assure you that in an HPC environment it's the equivalent of not having quotas effectively. You should set it to 2 hours or 4 hours.

In an environment such as ours a runway process can easily generate 500TB of data or 1 billion inodes in few hours, and choke the file system to all users/jobs.

Jaime


—
Kevin Buterbaugh - Senior System Administrator
Vanderbilt University - Advanced Computing Center for Research and Education
Kevin.Buterbaugh at vanderbilt.edu<mailto:Kevin.Buterbaugh at vanderbilt.edu> - (615)875-9633



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