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Status Not under consideration
Workspace Storage Scale (formerly known as GPFS)
Created by Guest
Created on Jan 21, 2025

RELATED IDEAS

Allow use of directory other then /tmp for GPFS temporary files.

We use GPFS / Spectrum Storage on our High Performance Computing Cluster for it's primary file system and use various mm* commands to monitor the health of the cluster and alert us if GPFS goes offline on a node.

If a users HPC compute job inadvertently fills up /tmp, certain GPFS commands fail, like mmgetstate (which we use, along with other mm* commands):

 

[root@a0n14 ~]# df -h /tmp
Filesystem      Size  Used Avail Use% Mounted on
tmpfs           1.0G  1.0G     0 100% /tmp
[root@a0n14 ~]# mmgetstate
mmgetstate: Unable to obtain the OS name.  The tmp file system may be full.
[root@a0n14 ~]# 

 

Since /tmp is a global 1777 file system that can be filled by a user process, GPFS shouldn't rely on /tmp for storing data that mm* command need to run/complete and should write such transient data to either /var/mmfs or allow the admin to specify an alternate TMPDIR location via an mmchconfig option, so the admin can specify an alternate location that general users are not allowed to access.

Idea priority Low

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