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<title>About Controller Policies</title>
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<a class="WebWorks_Breadcrumb_Link" href="Config_Controller.5.1.html#1193450">Configuring Your Controller</a> > About Controller Policies</div>
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<div class="Heading1"><a name="1193450">About Controller Policies</a></div>
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<div class="BodyAfterHead"><a name="1292560">The following policies affect all units and drives on a controller and can be </a>adjusted as appropriate for your equipment. Controller policies are shown at the bottom of the <a href="Controller_Settings.html#1088416">Controller Settings page</a> in 3DM2.</div>
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<div class="Bullet_inner"><span class="NoteHeading"><a name="1193463">Auto-Rebuild.</a></span> Determines whether the Auto-Rebuild policy is enabled or disabled. When disabled, degraded units can only be rebuilt with designated spares. When enabled, the controller firmware will automatically attempt to rebuild a degraded unit if there is no spare, using either an available drive or a failed drive. (See <a href="Config_Controller.5.5.html#1115045">Setting the Auto-Rebuild Policy</a>.)</div>
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<div class="Bullet_inner"><span class="NoteHeading"><a name="1193468">Auto-Carving.</a></span> Determines whether the auto-carving policy is enabled or disabled. When it is enabled, when a new unit is created, any unit larger than a specified size (known as the <span class="Emphasis">carve size</span>) is broken into multiple volumes that can be addressed by the operating system as separate volumes. The default carve size is 2 TB.<span style="font-weight: bold;"> </span>(See <a href="Config_Controller.5.6.html#1091097">Using Auto-Carving for Multi LUN Support</a>.)</div>
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<div class="Indent"><a name="1193472">This auto-carving feature is sometimes referred to as multi-LUN, where </a>each volume that is created is referred to as a “LUN.”</div>
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<div class="Bullet_inner"><span class="UI-Element"><a name="1291500">Carve Size.</a></span> Sets the size for dividing up units into volumes when Auto-Carving is enabled and a unit is created. This setting can be between 1024 GB and 32768 GB. (See <a href="Config_Controller.5.7.html#1115233">Setting the Size of Volumes Created with Auto-Carving</a>.) Changing this setting has no effect on existing units.</div>
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<div class="Bullet_inner"><span class="NoteHeading"><a name="1320236">Staggered spin-up. </a></span>Spin-up allows drives to be powered-up into the Standby power management state to minimize in-rush current at power-up and to allow the controller to sequence the spin-up of drives. Compatible drives are sent a spin up command based on the settings specified with the policies <span class="UI-Element">Number of drives per spin-up</span> and <span class="UI-Element">Delay between spin-up </span><span class="UI-Element">settings</span>. These policies can only be set using 3BM or the CLI.</div>
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<div class="Indent"><span class="NoteHeading"><a name="1320237">Note: </a></span>This policy does not apply to drives attached to an expander. </div>
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<div class="Bullet2_inner"><span class="NoteHeading"><a name="1320238">Number of drives per spin-up.</a></span> 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.</div>
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<div class="Bullet2_inner"><span class="NoteHeading"><a name="1320239">Delay between spin-up.</a></span> The delay time (in seconds) between drive groups that spin up at one time on this particular controller, if staggered spin-up is enabled.</div>
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<div class="Bullet2_inner"><span class="NoteHeading"><a name="1320240">Delay before spin-up.</a></span> (3BM only) The delay time (in seconds) before the first set of drives on this particular controller will start to spin-up.</div>
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<span class="Red"> </span><a name="1320255"> </a></div>
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<img src="Note.gif" alt="*" id="bullet1320243" border="0" width="27" height="34" /><a name="1320243"> </a></div>
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<div class="CellBody"><a name="1320245">It is possible to enable or disable automatic detection of drives on the </a>controller’s ports for staggered spinup during hot swapping of drives. This feature is only available in the CLI using the <span class="command">autodetect=on|off</span> command. For more information, refer to <span class="command">/cx set autodetect=on|off disk=<p:-p>|all</span><span class="command"><br /></span>in the<span class="Emphasis">3ware SATA+SAS RAID Controller Card CLI Guide, Version 10.2</span>.</div>
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<div class="Bullet_inner"><span class="NoteHeading"><a name="1320262">Export unconfigured disks (JBOD). </a></span>This setting is not applicable for 9750 controllers.</div>
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<div class="Bullet_inner"><span class="NoteHeading"><a name="1320264">Staggered method. </a></span>Indicates whether the type of staggered spin-up is ATA-6 or SATA OOB (Out Of Band). By default, when Staggered Spin-up 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.</div>
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<div class="Bullet_inner"><span class="UI-Element"><a name="1294365">Auto-Verify Preferred Date and Time. </a></span>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 3DM2, the Basic and Advanced Auto-Verify schedule is set on the <span class="UI-Element">Schedule</span> page. Enabling or Disabling Auto-Verify is a Unit Policy and is set on the <span class="UI-Element">Create Disk Array</span> screen in 3BM and the <span class="UI-Element">Controller Settings</span> page in 3DM2.</div>
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<div class="Body"><a name="1250149">Some additional policies can be set at the unit level. For more information, </a>see <a href="Config_Units.6.8.html#1157287">Setting Unit Policies</a>.</div>
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<a href="http://www.lsi.com/channel/products" target="_blank">LSI Corporation</a>
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