I was converting my Oracle ASM disk management from udev rules to ASM Filter Driver (ASMFD) and encountered the below errors which might happen during the conversion operation and this post might help you fix the issue as quickly as possible.
You can read more on Oracle ASMFD, configuration and migrating to ASMFD using this 19c documentation
1. Wrong/incorrect afd_diskstring value
[root@ol819-rac1 ~]# [root@ol819-rac1 ~]# $ORACLE_HOME/bin/asmcmd afd_label asmdisk1 /dev/sdb1 --migrate No devices to be labeled. ASMCMD-9513: ASM disk label set operation failed.Since my disks are already pointing to /dev/oracleasm due to the udev rules, ASMFD config file picked up the afd_diskstring parameter picked up this value by default and hence the issue. Edit the /etc/oracleafd.conf config file and retry the operation
[root@ol819-rac1 ~]# cat /etc/oracleafd.conf afd_diskstring='/dev/oracleasm/*' [root@ol819-rac1 ~]# vi /etc/oracleafd.conf [root@ol819-rac1 ~]# cat /etc/oracleafd.conf afd_diskstring='/dev/sd*' [root@ol819-rac1 ~]# [root@ol819-rac1 ~]# $ORACLE_HOME/bin/asmcmd afd_label asm-disk1 /dev/sdb1 --migrate Invalid label string : asm-disk1 ASMCMD-9513: ASM disk label set operation failed. [root@ol819-rac1 ~]# $ORACLE_HOME/bin/asmcmd afd_label asmdisk1 /dev/sdb1 --migrate [root@ol819-rac1 ~]# [root@ol819-rac1 ~]# $ORACLE_HOME/bin/asmcmd afd_lsdsk -------------------------------------------------------------------------------- Label Filtering Path ================================================================================ ASMDISK1 ENABLED /dev/sdb1 [root@ol819-rac1 ~]# ls -al /dev/oracleafd/disks total 4 drwxrwxr-x. 2 oracle dba 60 Jan 18 10:28 . drwxrwx---. 3 oracle dba 80 Jan 18 09:45 .. -rw-rw-r--. 1 oracle oinstall 10 Jan 18 10:28 ASMDISK1 [root@ol819-rac1 ~]#Note: You can see we get the Invalid label string when provided the disk name as asm-disk1. hyphen (-) is not allowed in the disk name. If needed we can use underscore (_). I left it without any special characters.
2. Retry label after wrong path
I used a wrong path value during label operation by providing the pointer instead of actual disk path and tried to relabel again causing ASM-9513
We can use the kfod command to check the label details of the ASM disk.
[root@ol819-rac1 ~]# asmcmd afd_label asmdisk1 /dev/sdb1 --migrate label name ASMDISK1 is already in use ASMCMD-9513: ASM disk label set operation failed. [root@ol819-rac1 ~]# kfod OP=DISKS status=TRUE disks=ASM label=TRUE dscvgroup=TRUE -------------------------------------------------------------------------------- Disk Size Header Path Disk Group Site Failgroup Disk-Label User Group ================================================================================ 1: 25599 MB MEMBER /dev/oracleasm/asm-disk1 DATA # # ASMDISK1 oracle dba [root@ol819-rac1 ~]#In the above you can see the path is /dev/oacleasm/asm-disk1 with the Disk-label set to ASMDISK1. This might work now as I still have udev rules in place so the pointer path would work. Once I remove the udev rules, this path will not exist and would cause issues in identifying disks and my cluster won't come up as the disk contains the voting disk as well
[root@ol819-rac1 ~]# asmcmd afd_unlabel asmdisk1 disk AFD:ASMDISK1 is already provisioned for ASM No devices to be unlabeled. ASMCMD-9514: ASM disk label clear operation failed. [root@ol819-rac1 ~]# [root@ol819-rac1 ~]# [root@ol819-rac1 ~]# afdtool -delete '/dev/oracleasm/asm-disk1' disk /dev/oracleasm/asm-disk1 is already provisioned for ASM No devices to be unlabeled. [root@ol819-rac1 ~]# afdtool -delete -f '/dev/oracleasm/asm-disk1' Unlabeled device ASMDISK1 [root@ol819-rac1 ~]# [root@ol819-rac1 ~]# kfod OP=DISKS status=TRUE disks=ASM label=TRUE dscvgroup=TRUE -------------------------------------------------------------------------------- Disk Size Header Path Disk Group Site Failgroup Disk-Label User Group ================================================================================ 1: 25599 MB MEMBER /dev/oracleasm/asm-disk1 DATA # # # oracle dba [root@ol819-rac1 ~]#afd_unlabel fails with ASMCMD-9514 stating disk already provisioned for ASM. This means afd_label command not only labels the disk but also includes it in the list of disks managed by AFD. So AFD does not allow altering the label for a disk that is currently being managed by AFD.
We can use afdtool command to delete the label in this case.
After unlabeling the disk, we can see the kfod command has null value for Disk-label for the disk.
We can then use afd_label command to label the disk using the proper path as shown in this post above.
References:
ASMCMD-9513: Asmcmd Afd_label DATADG /dev/sdc1 --migrate (Doc ID 2308860.1)
Happy Troubleshooting...!!!
