Highpoint RocketRAID 2740 Manuel d'utilisateur télécharger pdf (Page 39)

Foreground: The RAID initialization process will be set as high priority. The array cannot be utilized

this procedure is complete, but the build process will take considerably less time, as the host adapter

will dedicate its resources to completing this task. This is most secure option.

Background: This option lowers the priority of RAID initialization. This option will start to build

parity like the Foreground option, but at a lesser rate of speed. This option allows the array to be

accessed immediately. However, as a result, protection against data loss is much lower compared to

the Foreground option.

4) If you are creating a Redundant Array (RAID 1, 5, 10, 50), specify the array’s Cache Policy. If you

are creating a JBOD or RAID 0 array, skip to step 6. Select Write-Back or Write-Through from the

drop down menu:

Write Back – this setting is best for optimal transfer rates, and fully utilizes the available memory to

enhance read and write performance. However, this option raises the risk of data loss in the event of

hardware failure.

Write Through – this option raises the level of data security. Data is written directly to disk when this

Cache Policy is enabled.

However, this lowers the overall performance of the array, when compared to Write Back.

5) Assign hard disks to the array. To add a hard disk to the array, check the box displayed before

each disk’s entry. You can also use the “Select All” button to quickly select all disks attached to

the host adapter.

6) Specify the capacity. Manually enter the desired RAID capacity (in MB). If you wish to use all

available hard disk capacity, leave the “Maximum” entry in place, and proceed to the next space.

If you choose to specify the capacity, make a note that the remaining capacity (unused space) can

be used to configure additional arrays, or set to act as a “spare” disk.

7) Once all of the RAID parameters have been specified click the “Create” button to create the array.

The utility will display a brief summary after successfully creating the array:

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Highpoint RocketRAID 2740 Manuel d'utilisateur Page 39