ultipath

Subject: multipath
Os info: linux 7
Oracle info: oracle 12c
Message: Hi All,
We have added lun storage to existing 2 node rac.Existing storage using
local harddisk dedicated to 2 node.. Once i enable the multipath
service autostart, whenever server reboot, we are getting the below
error in asm alertlog.
1)Both(multipath,crs) auto start and server reboot =>error in alert
log.
2)Disable multipath and restart server =>no error.
3)Start multpath after server,crs started =>no error.
path:Unknown disk
incarnation:0xe969b499 asynchronous result:'I/O error'
subsys:Unknown library krq:0x7fa58bf72688 bufp:0x7fa58bf66000
osderr1:0x0 osderr2:0x0
IO elapsed time: 0 usec Time waited on I/O: 0 usec
NOTE: cache dismounting (clean) group 2/0x9CD944C7 (FRA)
NOTE: messaging CKPT to quiesce pins Unix process pid: 5179, image:
oracle@test1 (TNS V1-V3)
NOTE: dbwr not being msg'd to dismount
NOTE: LGWR not being messaged to dismount
NOTE: cache dismounted group 2/0x9CD944C7 (FRA)
NOTE: cache ending mount (fail) of group FRA number=2 incarn=0x9cd944c7
NOTE: cache deleting context for group FRA 2/0x9cd944c7
ERROR: diskgroup FRA was not mounted
ORA-15032: not all alterations performed
ORA-15017: diskgroup "FRA" cannot be mounted
ORA-15040: diskgroup is incomplete
ORA-15080: synchronous I/O operation failed to read block 0 of disk 3
in disk group
ORA-15080: synchronous I/O operation failed to read block 0 of disk 2
in disk group
ORA-15080: synchronous I/O operation failed to read block 0 of disk 1
in disk group
ORA-15080: synchronous I/O operation failed to read block 0 of disk 0
in disk group
Note:-just partitioned few lun storage. None of the lun storage
attached to ASM INSTANCE.
Anyone faced similar issue? Thanks in advance..


Subject: Re: multipath
Message: Have you verified the output of the multipath -ll command? Are
all the disk needed present?


Subject: Re: multipath
Message: Yes.. Its present..

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