For a system with an Oracle Storage 12 Gb SAS RAID PCIe HBA, Internal (7110116, 7110117) installed, you have the option to enable JBOD mode so that the underlying operating system can have the access to a disk directly without creating a RAID volume first. If JBOD mode is not enabled, the underlying operating system is not able to see the disk until the disk is included in a RAID volume,
You can enable JBOD mode on either a disk or controller. If you enable JBOD mode on the controller, all the disks on that controller will be in JBOD mode.
raidconfig modify disk -d disk --jbod enabled|disabled
raidconfig modify controller -c controller --jbod enabled|disabled
The following example shows output for JBOD mode enabled on c0, then disabled on just disk 7.
CONTROLLER c0 ============= Manufacturer Model F/W Version RAID Volumes Disks --------------------------------------------------------------------------- LSI Logic MegaRAID 9361-8i 4.220.20-3050 1 8 RAID Volumes ============ ID Name Device Status Num Disks Level Size (GiB) --------------------------------------------------------------------------------- c0r1 OEL /dev/sda OK 1 0 465 DISKS In Use ============ ID Chassis Slot RAID ID Status Type Media Spare Size (GiB) --------------------------------------------------------------------------------- c0d0 0 0 c0r1 OK sata HDD - 465 DISKS Available =============== ID Chassis Slot RAID ID Status Type Media Spare Size (GiB) --------------------------------------------------------------------------------- c0d1 0 1 - JBOD sas HDD - 137 c0d2 0 2 - JBOD sas HDD - 137 c0d3 0 3 - JBOD sas HDD - 137 c0d4 0 4 - JBOD sas HDD - 137 c0d5 0 5 - JBOD sas HDD - 137 c0d6 0 6 - JBOD sata HDD - 466 c0d7 0 7 - OK sata HDD - 466