Viewing and Seting Controller Policieswww.3ware.com 125Exporting JBOD DisksBy default, JBOD disks (unconfigured disks) connected to the 3ware RAIDcontroller are not exported to the operating system. This means that any drivesyou leave unconfigured are not seen by the operating system, and cannot beused for storage. When Export JBOD Disks is set to No, you make individualdisks available for use by configuring them as Single Disks.If you want unconfigured disks to be available on your computer, you canchange this setting in 3BM or using the CLI.Note: It is recommended that JBODs not be made available to theoperation system. The advantages of working with configuredSingle Disks over JBOD are:• If interrupted, a single disk media scan will continue from whereit left off, while a JBOD media scan must restart from thebeginning.• Single disks can take advantage of the controller caching andconfiguration is persistent.• Single disks will be able to be migrated to redundant units in thefuture (e.g. A single disk will be able to be mirrored to anotherdrive, creating a RAID 1 array).If JBOD disks are not exported to the operating system, they will appear asavailable drives in 3DM, and can be configured as single disks or spares, andincluded in other RAID configurations. If you change the policy to allowJBOD disks to be exported to the operating system, they will appear as unitsin 3DM if those drives were previously used as JBODs on another controller.AMCC recommends that new drives be configured as Singles and not JBODs.To enable or disable the export of unconfigured disks1 At the main 3BM screen, Tab to Policy and press Enter.2 On the Policy Control screen, Tab to Export Unconfigured Disks, pressEnter to display the choices, use the arrow keys to select Yes (to enable),or No (to disable) and press Enter again to choose it.3 Tab to the OK button and press Enter.You will notice a short delay as 3BM makes the policy changes.Note: If you enable the Export JBOD Disks option, the controllerrecognizes and displays as JBODs drives that were previouslyconnected to 7000/8000-series controllers as JBODs. Drives thatwere previously connected to a 9000-series controller andconfigured will not be seen as JBODs.
