GPFS filesystem is hanging and there is a slowness in job processing
Environment
- Red Hat Enterprise Linux (RHEL)
- IBM Spectrum Scale's Global Parallel File System (GPFS)
Issue
- /abcd/ file system is hanging and there is a slowness in job processing.
- Does Red Hat support the IBM Spectrum Scale Global Parallel File System (GPFS)?
- Does Red Hat support Global Parallel File System (GPFS)?
- Does Red Hat support the
mmfslinux
kernel module? - Does Red Hat support the
mmfs26
kernel module?
Resolution
- Global Parallel File System (GPFS) is not shipped by Red Hat.
- Please contact the file system vendor i.e. IBM Spectrum Scale to debug the issue.
Root Cause
- As stated in the Production Support Scope of Coverage third-party software, like Global Parallel File System (GPFS), is not supported by Red Hat.
Diagnostic Steps
-
You can check in sosreport with the following command:
-
Look in
proc/mounts
forgpfs
mounts$ grep -w gpfs proc/mounts /dev/abcd /efg gpfs rw,relatime 0 0
-
Look in
etc/fstab
forgpfs
mounts# grep -w gpfs etc/fstab /dev/abcd /efg gpfs rw,mtime,atime,dev=abcd,noauto 0 0
-
Look for the
mmfs
kernel modules in modinfo output$ grep -A3 ^filename.*mmfs sos_commands/kernel/modinfo* filename: /lib/modules/3.10.0-327.62.1.el7.x86_64/extra/mmfs26.ko supported: external author: IBM <gpfs@us.ibm.com> description: GPFS Kernel Module -- filename: /lib/modules/3.10.0-327.62.1.el7.x86_64/extra/mmfslinux.ko supported: external author: IBM <gpfs@us.ibm.com> description: GPFS portability layer
-
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