UnixPedia : HPUX / LINUX / SOLARIS: Data corruption due to Fs active on multiple nodes.

Thursday, November 22, 2018

Data corruption due to Fs active on multiple nodes.

On earth system after data copy , data are corrupted below are output seen while doing ll or du in directory

[root@earth:/root]#
#-> cd /sap_refresh02
[root@earth:/sap_refresh02]#
#-> ll
ls: cannot access RSE: No such device or address
ls: cannot access INCRBKP: No such device or address
total 24
?????????? ? ?      ?            ?            ? INCRBKP
drwxr-xr-x 2 root   root        96 Oct  8  2014 lost+found
drwxrwxrwx 2 oracle oinstall 24576 Nov 22 05:13 RMAN_RBE_RSE
?????????? ? ?      ?            ?            ? RSE
drwxrwxr-x 2 oracle oinstall    96 Nov 22 12:34 RSE_DB
drwxrwxr-x 2 oracle oinstall    96 Nov 22 12:34 RSE_DB_INCR
-rw------- 1 root   root         0 Nov 22 11:20 sifh
drwx------ 2 root   root        96 Nov 22 13:34 Test
[root@earth:/sap_refresh02]#
#-> ll RSE_DB
total 0
[root@earth:/sap_refresh02]#
#-> ll RSE_DB_INCR
total 0
[root@earth:/sap_refresh02]#
#-> ll RMAN_RBE_RSE
ls: cannot access RMAN_RBE_RSE/PSAPDAT_4.tf: No such device or address
ls: cannot access RMAN_RBE_RSE/PSAPDAT_11.tf: No such device or address
ls: cannot access RMAN_RBE_RSE/PSAPDAT_12.tf: No such device or address
ls: cannot access RMAN_RBE_RSE/PSAPDAT_13.tf: No such device or address
ls: cannot access RMAN_RBE_RSE/PSAPDAT_14.tf: No such device or address
ls: cannot access RMAN_RBE_RSE/PSAPDAT_18.tf: No such device or address
ls: cannot access RMAN_RBE_RSE/PSAPDAT_19.tf: No such device or address


Reason :
   Same set of lun are active on other nodes and in mounted state, active IO on those causing the corruption of LV.
 
Solution :
   deactivate the volume and remove LV from other nodes.

No comments:

Post a Comment