PART C – RAID CONFIGURATION
There are two ways to configure RAID on the LSI 9270-8i – the MegaRAID Storage Manager software in Windows, or the WebBIOS UI before a Windows install. We’re going with WebBIOS as it is easier and can be done without an OS.
NOTE: On systems that do not have the PS/2 port, you must enable port 60/64 emulation in the System BIOS to emulate USB as PS2. WebBIOS ONLY works with the PS/2 interface, so make sure this feature is on so it can read your USB mouse and keyboard as PS/2 devices.
Hopefully you have decided which RAID level you wish to use. If you need help deciding, check back to Section I, and use the RAID calculator to see how space and redundancy will be allocated based on your decision(s). We are going with RAID 5 as it provides great performance while using little space for redundancy.
Right, let’s get to it. When you power on the server, the main manufacturer splash-screen provide information in case you need to access advanced options. Mash the DELETE key to enter BIOS and change anything you need. By default everything should be good to go, but just double-check and make sure your PCI-E slots are up and running. Furthermore, if you’re using software/motherboard RAID, this is a good time to change your SATA port interface to AHCI/RAID, and to turn on UEFI/EFI if your motherboard supports it.
Once that’s done, you’ll be presented with this screen:
…and this one:
Just a diagnostic check by the LSI 9270-8i to make sure everything is recognized. The Toshiba MG03ACA HDDs are picked up perfectly, so we can proceed to the LSI WebBIOS by pressing CTRL + H.
We only have one controller, so hit START:
From here drop down to the CONFIGURATION WIZARD:
Select NEW CONFIGURATION, the MANUAL CONFIGURATION:
Select the entire list of drives by holding SHIFT + DOWN until the last one has been selected. Then press ADD TO ARRAY so the drives appear as a cluster underneath DRIVE GROUP0:
Add the array to SPAN and proceed:
You will be taken to the RAID configuration page now, and from here you can fine-tune your settings. In our process, we left everything on default EXCEPT for the STRIP SIZE (not to be confused with cluster size), which we set to 512KB, and changed read preference to ALWAYS READ AHEAD. If you’re confused, check the VIRTUAL DRIVE OPTIONS section right after the screenshot below for an explanation into these different options and which ones suit you best: