HP 5300 - Manual (Page 59)

Configuring an Array
HP Smart Array 5300 Controller User Guide 7-17
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Writer: Jennifer Hayward File Name: h-ch7 configuring an array
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3. Create one or more logical drives on the array.
For this example, assume that you have ten 9.1-GB drives connected to your
controller. You want to make two arrays:
• Array A: seven 9.1-GB drives with a spare, configured with RAID 5 fault
tolerance
• Array B: two 9.1-GB drives in a RAID 1+0 fault-tolerance configuration
Configuring the Controller Settings
1. On the main ACU screen, select the controller to be used from the drop-down list
in the Controller Selection box. (Alternatively, click Controller on the menu
bar, and then click Select.)
2. Click Controller Settings.
The Controller Settings screen is displayed (Figure 7-9).
3. Select the rebuild priority, expand priority, and accelerator ratio.
4. Click Done to return to the main ACU screen.
Assigning Physical Drives of the Same Size to an Array
1. Click Create Array in the Controller box.
The Create Drive Array screen is displayed (Figure 7-10).
2. Select the drives that are to constitute the array from the drive list in the left
panel.
— Do not assign a group of physical drives to the same array unless they are of
the same capacity. If the drives have different capacities, the excess capacity
of the larger drives cannot be used by the array and is wasted.
— The probability that an array will experience a drive failure increases with
the number of drives in the array. HP recommends that no more than 14
drives be used per array in RAID 5 configurations.
For this example, select the seven drives on Port 1 with SCSI IDs 0 through 6.