After installing the new drives, perform the following steps to configure the RAID 10 drive array using iDRAC.
To configure the RAID 10 array using iDRAC
Connect the appliance to the network, and then access its iDRAC web interface at https://<iDRAC IP>.
On the iDRAC front page, click Reset to reset the iDRAC.
In the left pane, select Storage. Then in the right pane on the Summary tab, verify that eight total disks exist, four in Ready state, and four in Online state.
In the left pane, expand Storage and select Virtual Disks. In the right pane, on the menu bar, click Create.
In the Settings section, type a new name for the virtual disk. And for the Layout, choose RAID-10. Verify that Read Policy is set to Read Ahead, Write Policy is Write Back, and Strip Size Element is 64KB.
Leave the rest of the settings at their default values.
Scroll down to Internal Disks, select all four available disks, and verify the value for Capacity.
On the Apply Operation Mode drop-down menu, choose either Apply Now, Add to Pending Operations, or At Next Reboot.
The At Next Reboot option requires you to restart the appliance before the virtual disk is initialized.
In the lower right corner, click Create Virtual Disk and at the prompt, click OK. Refresh the page.
If you see a message that the capacity is out of range, remove the last decimal value from Capacity and try again.
A restart may be required on the R720 to initialize the new virtual disk.
In the left pane, select Storage. Verify that all eight disks are in the Ready state, and the Virtual Disks count is 2.
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