UDEV SCSI Rules Configuration In Oracle Linux 6
[root@rac1 ~]# ls /dev/sd*
/dev/sda /dev/sda1 /dev/sda2 /dev/sdb /dev/sdc /dev/sdd /dev/sdd1
[root@rac1 ~]#
[root@rac1 dev]# /sbin/scsi_id -g -u -d /dev/sdb
1ATA_VBOX_HARDDISK_VB6673148e-70a3b8f4
[root@rac1 dev]# /sbin/scsi_id -g -u -d /dev/sdc
1ATA_VBOX_HARDDISK_VBc778fc49-01bbefbb
[root@rac1 dev]#
[root@rac1 ~]# /sbin/scsi_id -g -u -d /dev/sdd
1ATA_VBOX_HARDDISK_VBf8c61d16-a391798e
[root@rac1 ~]#
/sbin/scsi_id -g -u -d /dev/sdd
[root@rac2 dev]#
[root@rac2 dev]# /sbin/scsi_id -g -u -d /dev/sdb
1ATA_VBOX_HARDDISK_VB6673148e-70a3b8f4
[root@rac2 dev]# /sbin/scsi_id -g -u -d /dev/sdc
1ATA_VBOX_HARDDISK_VBc778fc49-01bbefbb
[root@rac2 dev]#
[root@rac2 ~]# /sbin/scsi_id -g -u -d /dev/sdd
1ATA_VBOX_HARDDISK_VBf8c61d16-a391798e
[root@rac2 ~]#
For Oracle Linux 6
KERNEL=="sd?1", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -u -d /dev/$parent", RESULT=="1ATA_VBOX_HARDDISK_VB6673148e-70a3b8f4", NAME="DISK1", OWNER="grid", GROUP="asmadmin", MODE="0660"
KERNEL=="sd?1", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -u -d /dev/$parent", RESULT=="1ATA_VBOX_HARDDISK_VBc778fc49-01bbefbb", NAME="DISK2", OWNER="grid", GROUP="asmadmin", MODE="0660"
KERNEL=="sd?1", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -u -d /dev/$parent", RESULT=="1ATA_VBOX_HARDDISK_VBf8c61d16-a391798e", NAME="DISK3", OWNER="grid", GROUP="asmadmin", MODE="0660"
/sbin/udevadm test /block/sdb/sdb1
/sbin/udevadm test /block/sdc/sdc1
/sbin/udevadm test /block/sdd/sdd1
https://oracle-base.com/articles/linux/udev-scsi-rules-configuration-in-oracle-linux