According to the Sun document, there are 3 ways for us to load additional SCSI driver and there are floppy local, floppy remote and floppy image. Here i will use floppy image as physical floppy is getting extinct nowadays. You can easily obtain this floppy image from Sun download website. or you can download from this link, which is from module 3.0. Please note if the download link is not working, just leave a comment and i will fix it.
According to the Sun document, you need to have ILOM in order to use floppy image, if you still have ELOM, you should upgrade to ILOM. Once you are in ILOM, to redirect into floppy image is straight forward. From Sun ILOM menu toolbar, just go to Devices and select Floppy Image as shown. Things to take note here is this step must be performed before you boot from your Windows installation CD.
From the popup windows, select where is your floppy image and after you click open, the floppy drive will be redirected to this floppy image and you can see the floppy image at the bottom right corner is no longer greyed out.
You can proceed to boot the system from Windows installation CD and follow the steps listed on the Sun document to proceed.
