3Ware 9550SXU16MLB10 User Guide - Page 84
Enabling and Setting Up Staggered Spinup, Policy, Enter, Control, Export Uncon d Disks
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Configuring Your Controller Note: It is recommended that JBODs not be made available to the operation system. The advantages of working with configured Single Disks over JBOD are: Single disk media scan will continue where it left off, while JBOD media scan always must restart from the beginning. Single disks can take advantage of the controller caching and configuration is persistent. Single disks will be able to be migrated to redundant units in the future (e.g. A single disk will be able to be mirrored to another drive, creating a RAID 1 array). If JBOD disks are not exported to the operating system, they will appear as available drives in 3DM, and can be configured as single disks or spares, and included in other RAID configurations. If you change the policy to allow JBOD disks to be exported to the operating system, they will appear as units in 3DM. To enable or disable the export of unconfigured disks 1 At the main 3BM screen, Tab to Policy and press Enter. 2 On the Policy Control screen, Tab to Export Unconfigured Disks, press Enter 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 controller recognizes and displays as JBODs brand new drives, and drives that were previously connected to 7000/8000-series controllers as JBODs. Drives that were previously connected to a 9000-series controller and configured will not be seen as JBODs. Enabling and Setting Up Staggered Spinup Four policy settings let you enable or disable spinup of drives, set the number of drives that will spin up at the same time, and set the delay between drive groups that spin up at one time. Not all drives support staggered spinup. If you enable staggered spinup and have drives that do not support it, the setting will be ignored. To enable or disable spinup and set the delay between spinups 1 At the main 3BM screen, Tab to Policy and press Enter. 78 3ware 9000 Series Serial ATA RAID Controller User Guide