Adding a local HDD to an ESXi host

Solution 1:

According to the screenshot below, you have an "Unconfigured Disk"...

This means that the drive needs to be configured on your HP Smart Array B120i RAID controller before it can be used by an operating system or VMware ESXi.

You can perform this from the ESXi command line using the hpssacli command located in /opt/hp/hpssacli/bin/hpssacli on your server...

or

You can accomplish this by pressing F8 during the Smart Array RAIDC controller initialization in the BIOS when the server is booting.

From there, you'll need to create a "logical drive" on the new disk you've inserted. From there, the storage will be visible to VMware ESXi.