"umount -l" returns with "not mounted" message. See below.
[root@ ~]# umount -l /gpfs01
umount: /gpfs01: not mounted
[root@ ~]# umount -l /dev/gpfs01
umount: /dev/gpfs01: not mounted
[root@ ~]#
[root@ ~]# /usr/lpp/mmfs/bin/mmmount gpfs01
Wed Jun 29 11:56:58 EDT 2016: mmmount: Mounting file systems ...
mount: /dev/gpfs01 already mounted or /gpfs01 busy
mmmount: Command failed. Examine previous error messages to determine cause.
Thanks.
On 6/29/2016 11:46, Buterbaugh, Kevin L wrote:
Hi Tejas,
One thing that I have had occasional success with is a lazy unmount -
i.e. “unmount -l /gpfs01”. Doesn’t help more of the time than it does
help in my experience, but it’s one thing I try before bouncing a
node. HTHAL…
Kevin
On Jun 29, 2016, at 10:43 AM, Tejas Rao <[email protected]
<mailto:[email protected]>> wrote:
Hi all,
I cannot get the filesystem mounted again on few nodes.
[root@ ~]# /usr/lpp/mmfs/bin/mmmount gpfs01
Wed Jun 29 11:29:50 EDT 2016: mmmount: Mounting file systems ...
mount: /dev/gpfs01 already mounted or /gpfs01 busy
mmmount: Command failed. Examine previous error messages to determine
cause.
Things I have tried and checked.
1. Checked /proc/mounts and /etc/mtab and lsof /dev/gpfs01 and both
/dev/gpfs01 and /gpfs01 are not seen anywhere.
2. Tried mmshutdown/mmstartup and it fails to unload mmfs modules.
See below.
3. mmumount gpfs01 -f
A reboot of the client would probably fix it but as the client is
used in production, this is not easy to do.
Are there any tricks/hacks to remount the filesystem again without
rebooting the client.
[root@~]# /usr/lpp/mmfs/bin/mmshutdown
Wed Jun 29 11:10:52 EDT 2016: mmshutdown: Starting force unmount of
GPFS file systems
Wed Jun 29 11:10:57 EDT 2016: mmshutdown: Shutting down GPFS daemons
Shutting down!
'shutdown' command about to kill process 11431
Unloading modules from /lib/modules/2.6.32-504.8.1.el6.x86_64/extra
mmfsenv: Module mmfslinux is still in use.
Unmount all GPFS file systems and issue the command:
mmfsadm cleanup
Unloading module mmfs26
ERROR: Module mmfs26 is in use
mmfsenv: Error unloading module mmfs26.
Unloading module mmfslinux
ERROR: Module mmfslinux is in use by mmfs26
mmfsenv: Error unloading module mmfslinux.
Wed Jun 29 11:11:03 EDT 2016: mmshutdown: Finished
[root@~]#
Thanks.
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—
Kevin Buterbaugh - Senior System Administrator
Vanderbilt University - Advanced Computing Center for Research and
Education
[email protected]
<mailto:[email protected]> - (615)875-9633
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