Get all the info you need by installing the HP Management drivers for your vSphere server.
If you’re installing from the .iso from VMware you probably don’t have the HP drivers integrated into it, but you would like to monitor your Array Controller and discs.

Download and install VMware vSphere CLI 4.0

Download the ” offline HP ESXi Offline Bundle for VMware ESXi 4.1 ”
Go to : HP Support & Drivers Downloads
Fill out your server details, for example DL380 G7 and press enter,
Select VMware ESX/ESXi 4.1 from the operating system list.
Scroll down to Operating System – Enhancements to find your download.

Open the VMware vSphere CLI
Typ the following cmdline to find out if the bundle is applicable:

vihostupdate.pl --server <IP> --scan --bundle c:\hp-esxi4.1uX-bundle-1.0a.zip

Enter your vSphere server credentials

Verify that the bundle is applicable.

Now list the bulletins inside of the bundle, typ:

vihostupdate.pl --server <IP> --list --bundle c:\hp-esxi4.1uX-bundle-1.0a.zip

Make sure that your server is in Maintenance Mode or you will receive an error during the install.
Now install the bundle, typ:

vihostupdate.pl --server <IP> --install --bundle c:\hp-esxi4.1uX-bundle-1.0a.zip

Reboot your server to finish the installation.

After the installation you can query your server to see if it’s installed.

vihostupdate.pl --server <IP> --query