User's Manual

Set Background Initialization Rate
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Does my controller support this feature? See Supported Features.
The Set Background Initialization Rate task changes the amount of system resources dedicated to the background initialization task. See Background
Initialization on PERC 4/SC, 4/DC, 4e/DC, 4/Di, 4e/Si, and 4e/Di Controllers for more information on the background initialization task.
The background initialization rate, configurable between 0% and 100%, represents the percentage of the system resources dedicated to running the
background initialization task. At 0%, the background initialization has the lowest priority for the controller, takes the most time to complete, and is the setting
with the least impact to system performance. A background initialization rate of 0% does not mean that the background initialization is stopped or paused.
At 100%, the background initialization is the highest priority for the controller. The background initialization time is minimized and is the setting with the most
impact to system performance.
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To change the controller's background initialization rate:
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1. Type a numerical value in the New Background Initialization Rate text box. The value must be within the 0 – 100 range.
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2. Click Apply Changes. To exit and cancel your changes, click Go Back to Previous Page.
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To locate this task in Storage Management:
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1. Expand the Storage tree object to display the controller objects.
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2. Select a controller object.
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3. Select the Information/Configuration subtab.
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4. Select Set Background Initialization Rate from the Available Tasks drop-down menu.
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5. Click Execute.
You can also locate this task from the Change Controller Properties drop down menu. For more information, see Change Controller Properties.
In certain circumstances, the Used RAID Disk Space displays a value of zero (0) even though a portion of the physical disk is actually
being used. This occurs when the used space is 0.005 GB or less. The algorithm for calculating the used disk space rounds off a figure of
0.005 GB or less to 0. Used disk space that is between 0.006 GB and 0.009 GB is rounded off to 0.01 GB.
Available RAID
Disk Space
This property displays the amount of available space on the disk. This property is not applicable for physical disks attached to non-RAID
controllers.
Hot Spare
This property indicates whether the disk has been assigned as a hot spare. This property is not applicable for physical disks attached to
non-RAID controllers.
Vendor ID
This property displays the disk's hardware vendor.
Product ID
This property displays the disk's product ID.
Revision
This property displays the disk's revision number.
Serial No.
This property displays the disk's serial number.
Negotiated
Speed
This property displays the speed of data transfer that the disk negotiated while spinning up and upon initial communication with the
controller. This speed is dependent on the speed of the disk, the capable speed of the controller, the current speed of the controller on
that connector, and the speed of the Enclosure Management Module (EMM) on the enclosure.
Capable Speed
This property displays the highest possible speed with which the device can transfer data.
Manufacture Day
This property displays the day of the month on which the physical disk was manufactured.
Manufacture
Week
This property displays the week of the year during which the physical disk was manufactured.
Manufacture
Year
This property displays the year in which the physical disk was manufactured.
SAS Address
This property displays the SAS address of the physical disk. The SAS address is unique to each SAS disk.
After Import
Status
This property displays what the status of the physical disk would be after the foreign configuration has been imported. Possible values
are:
l Foreign
l Online
l Offline
l Replaced
l Rebuild