3Ware 9550SXU-12 User Guide - Page 101

About Controller Policies policies Number of drives per spin-up and Delay between spin-up settings. These policies can only be set using 3BM or the CLI. Note: This policy does not apply to drives attached to an expander. • Number of drives per spin-up. Number of drives that will spin up at the same time when the controller is powered up, if staggered spin-up is enabled. From 1 to x, depending on the number of ports on the controller. • Delay between spin-up. The delay time (in seconds) between drive groups that spin up at one time on this particular controller, if staggered spin-up is enabled. • Delay before spin-up. (3BM only) The delay time (in seconds) before the first set of drives on this particular controller will start to spin-up. It is possible to enable or disable automatic detection of drives on the controller's ports for staggered spinup during hot swapping of drives. This feature is only available in the CLI using the autodetect=on|off command. For more information, see/cx set autodetect=on|off disk=|all3ware SAS/SATA RAID Controller CLI Guide. • Export unconfigured disks (JBOD). This setting is disabled by default. This setting indicates whether JBOD disks should be exported to the operating system. JBOD configuration is strongly discouraged for newly added disks on a 9000 series controller, in favor of Single Disk, so by default, this setting is disabled. If you have a JBOD configuration from a 7000/8000 controller that you want to use on the 9000 series controller, you should enable this setting. This policy can only be set in 3BM and CLI. • Staggered method. Indicates whether the type of staggered spin-up is ATA-6 or SATA OOB (Out Of Band). By default, when Staggered Spinup is enabled, the OOB scheme is used. If your drives support the SATA ATA-6 method, select that method in 3BM. There is no electronic method for the controller to know if a drive supports this method, so it must be set manually. For staggering to work properly, the drives must support the selected method. This policy does not apply to drives that are attached to an expander. This policy can only be set and only shows in 3BM. • Auto-Verify Preferred Date and Time. Sets the default date and time for auto-verify to run, when the Verify Schedule follows the weekly "Basic" schedule and Auto-Verify is enabled for specific units. Note that in 3DM the Basic and Advanced Auto Verify schedule is set on the Schedule page. Enabling or Disabling Auto Verify is a Unit Policy and is set on the Create Disk Array screen in 3BM and the Controller Settings page in 3DM. Some additional policies can be set at the unit level. For more information, see "Setting Unit Policies" on page 116. www.3ware.com 89