AGATA » AGATA DAQ

• gpfs off
• umount /agatadisks
• gpfs on
• mount /agatadisks

Always in NFS stale

Anodeds1 rebooted ...

complicated reboot ...

Always NFS stale

Only 250 GB free on sunxfire ...

Need to find a way to free disk if not possible to have agatadisks quickly ...

after the mount did you restart the nfs-kernel-server ?

root@anode01:~# ls /agatadisks/
root@anode01:~# umount /agatadisks/
umount: /agatadisks/: not mounted
root@anode01:~# mount /agatadisks
root@anode01:~# ls /agatadisks/
BLOCKED
/etc/init.d/nfs-kernel-server restart
Stopping NFS kernel daemon: mountd nfsd.
Unexporting directories for NFS kernel daemon....
Exporting directories for NFS kernel daemon....
Starting NFS kernel daemon: nfsd mountd.
Deblocked the BLOCKED command on anode01

CSSH is my friend now

I don't close the ticket since I think Yann should investigate and understand what was the problem

using cssh I have :
umount /agatadisks
mount /agatadisks
DAQ should run now

I used a umount -lf /agatadisks on visux and analysisx in order to avoid device busy problems

My question is to understand what happend the morning of the crash. What is the reason for this crash.
Since it is the first time we have such a problem, I am wondering if it is a simple crash of the computer, or if the reason is the eventbuilding that crash the anode.

It is not crutial, but if the event builder can crash the anode, we are having a stability problem, and we should avoid to do event building on anodeds1.