Numerical result out of range on DBFS mount

Just got a complain from our user that they are having problem accessing the dbfs mount.
so i login to the server affected. ( one of the DB node of Exadata)

ERROR :

 
cocq02.bai.com: cocq2>cd /coc_dbfs
-bash: cd: /coc_dbfs: Numerical result out of range
cocq02.bai.com: cocq2>


Checking if DBFS is running

 
cocq02.bai.com: cocq2> srvctl status database -d DBFS
Instance DBFS1 is running on node cocq01
Instance DBFS2 is running on node cocq02
Instance DBFS3 is running on node cocq03
Instance DBFS4 is running on node cocq04
cocq02.bai.com: cocq2>

Solution

– unmount fs

 
cocq02.bai.com: cocq2>fusermount -u /coc_dbfs
cocq02.bai.com: cocq2>df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/VGExaDb-LVDbSys1
                       30G  8.0G   21G  29% /
/dev/sda1             122M   34M   83M  29% /boot
/dev/mapper/VGExaDb-LVDbOra1
                       99G   30G   65G  32% /u01
tmpfs                  81G     0   81G   0% /dev/shm
fsg100cnc:/vol/nfs1_100/oradata
                       50T   25T   26T  49% /backup
----->> dbfs mount is gone

-start dbfs client

                       
cocq02.bai.com: cocq2>nohup dbfs_client dbfs_user@dbfs -o allow_other,direct_io /coc_dbfs < $HOME/passwd.txt &
[1] 79024
nohup: appending output to `nohup.out'
 
cocq02.bai.com: cocq2>df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/VGExaDb-LVDbSys1
                       30G  8.0G   21G  29% /
/dev/sda1             122M   34M   83M  29% /boot
/dev/mapper/VGExaDb-LVDbOra1
                       99G   30G   65G  32% /u01
tmpfs                  81G     0   81G   0% /dev/shm
fsg100cnc:/vol/nfs1_100/oradata
                       50T   25T   26T  49% /backup
dbfs-dbfs_user@dbfs:/
                     1013G  428G  586G  43% /coc_dbfs <<<<---- dbfs mount is mounted

– check

 
cocq02.bai.com: cocq2>cd /coc_dbfs
cocq02.bai.com: cocq2>ls                <<<< no more error
FS1

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