Create array
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If you have Create RAID privilege and there are enough single disks in the system to create an array, click the Create button on the toolbar or select the Operation->Create menu to enter into the Array Creation wizard window. To create an array, follow the next steps: Step 1: Choose the array type you want to create from the drop-down list. The available array types may vary; it depends on the controller and driver you use. Next, enter array name. You can't leave Array Name item empty. Then click the Next button. If the array type is JBOD, you can directly jump to the step 3. Step 2: If the array type you choose is RAID 1, you will choose either of the creation options (See below). RAID 1 Create Option: 1. Create only The RAID 1 array created in this way will lose all data on the member disks. 2. Create and duplicate
Create a RAID 1 array and copy data from the source disk to the mirror disk. The
capacity of the source disk mustn't be larger than the mirror disk. If the array type you choose is RAID 5, you will choose the creation options and block size (See below). RAID 5 Create Option: 1. Zero Build This method requires each and every stripe in the RAID 5 array to be zeroed out. Note that, the result of an XOR on a set of zeros is also zero. Consequently this method of initialization permits parity to be determined and written to disks during the regular operation of the array (in response to write operations) using the "read-modify-write" method. 2. Scrub (build parity) This method requires the parity of each and every stripe to be evaluated and written to the appropriate location on the RAID array. A “scrub” may be performed on an un-initialized array (i.e., an array with un-initialized disks) so that parity can be determined and written to disks during the regular operation of the array (in response to write operations) using the “read-modify-write” method.3. No Build This method assumes that a RAID 5 array is already in a consistent state with respect to the parity information contained in it. This is an initialization method that is typically employed in scenarios where the data and parity in the disks comprising an array are in a consistent state. For instance, all the drives may be zeroed out already by the manufacturer, thereby making them suitable for initialization using a no build. This method is however unsuitable for use when data in the disks used for building the array cannot be relied upon to be in a consistent state, i.e., the parity data is comprised of invalid values. Step3: Select the single disks from the Available Disks list box and add them to the Selected Disks list box. If you create and duplicate a RAID 1 array, the first selected and added to the selected disks is the source disk. If you create only a RAID 1 array, the software will auto-select a disk as a source disk. Finally click Finish to complete creating an array. |