Hi,
I have a problem while adding diskgroup:
Disk Group DATAC1 creation failed with the following message:
ORA-15018: diskgroup cannot be created
ORA-15020: discovered duplicate ASM disk "DATAC1_0001"
ORA-15080: synchronous I/O operation failed to read block 0 of disk 0 in disk group
ORA-27070: async read/write failed
The disks have been configured with udev rules (ORACLE-BASE Ref.)
I've double checked all the steps and found that asm disks aliases have wrong permissions and owner, but I am not able to change them with chown:
[root@dhcppc5 ~]# ls -al /dev/sd*
brw-rw---- 1 root disk 8, 0 Aug 28 18:44 /dev/sda
brw-rw---- 1 root disk 8, 1 Aug 28 18:44 /dev/sda1
brw-rw---- 1 root disk 8, 2 Aug 28 18:44 /dev/sda2
brw-rw---- 1 root disk 8, 16 Aug 28 18:48 /dev/sdb
brw-rw---- 1 oracle dba 8, 17 Aug 28 19:25 /dev/sdb1
brw-rw---- 1 root disk 8, 32 Aug 28 18:48 /dev/sdc
brw-rw---- 1 oracle dba 8, 33 Aug 28 19:25 /dev/sdc1
brw-rw---- 1 root disk 8, 48 Aug 28 18:44 /dev/sdd
brw-rw---- 1 oracle dba 8, 49 Aug 28 19:25 /dev/sdd1
brw-rw---- 1 root disk 8, 64 Aug 28 18:44 /dev/sde
brw-rw---- 1 oracle dba 8, 65 Aug 28 19:25 /dev/sde1
brw-rw---- 1 root disk 8, 80 Aug 28 18:44 /dev/sdf
brw-rw---- 1 root disk 8, 81 Aug 28 18:48 /dev/sdf1
[root@dhcppc5 ~]# ls -al /dev/data*
lrwxrwxrwx 1 root root 4 Aug 28 19:25 /dev/data1 -> sdb1
lrwxrwxrwx 1 root root 4 Aug 28 19:25 /dev/data2 -> sdc1
[root@dhcppc5 ~]# ls -al /dev/flash*
lrwxrwxrwx 1 root root 4 Aug 28 19:25 /dev/flash1 -> sdd1
lrwxrwxrwx 1 root root 4 Aug 28 19:25 /dev/flash2 -> sde1
udev rules file:
KERNEL=="sd?1", SUBSYSTEM=="block", PROGRAM=="/usr/lib/udev/scsi_id -g -u -d /dev/$parent", RESULT=="1ATA_VBOX_HARDDISK_VBe4bcdd15-6889eeee", SYMLINK+="data1", OWNER="oracle", GROUP="dba", MODE="0660"
KERNEL=="sd?1", SUBSYSTEM=="block", PROGRAM=="/usr/lib/udev/scsi_id -g -u -d /dev/$parent", RESULT=="1ATA_VBOX_HARDDISK_VBe9ae63fe-01b51f02", SYMLINK+="data2", OWNER="oracle", GROUP="dba", MODE="0660"
KERNEL=="sd?1", SUBSYSTEM=="block", PROGRAM=="/usr/lib/udev/scsi_id -g -u -d /dev/$parent", RESULT=="1ATA_VBOX_HARDDISK_VBba7daf7f-f57f7a9c", SYMLINK+="flash1", OWNER="oracle", GROUP="dba", MODE="0660"
KERNEL=="sd?1", SUBSYSTEM=="block", PROGRAM=="/usr/lib/udev/scsi_id -g -u -d /dev/$parent", RESULT=="1ATA_VBOX_HARDDISK_VBb4cc0fa4-50fb4bb8", SYMLINK+="flash2", OWNER="oracle", GROUP="dba", MODE="0660"
Udev test run output looks fine to me.
Are there any ideas how to fix the issue?
OS: OEL7 kernel 3.8.13-118.10.2.el7uek.x86_64
Grid version 12.0.1.2