We recommend using our image, and it includes the NIC drivers. The IDSDM is a Raid 1, so if you have two SD cards in you can enable RAID mode and it will mirror them. It is set on the integrated devices menu in the BIOS. The iDRAC8 monitoring is improved and lets you monitor more things and may be enough depending on what you are wanting to monitor.
New install.  Should I use the Dell provided 5.5 U2 ISO or the ISO from VMware's site?   Will I be missing any drivers?  I have no RAID, just 4x 1GbE onboard and 4x 1GbE PCI. Also, how does the dual SD card work?  I have dual 16GB SD cards.  Is it mirrored automatically or do I need to set this somewhere?r   Lastly, do I still need to install OMSA?  I have the iDRAC Ent.  Was hoping iDRAC would finally do everything OMSA did so I don't have to install software, which has been buggy as [ADMIN NOTE: Profanity removed per TOU] in my other 8 4.1 and 5.1 servers.
ESXi 5.5 U2 on new R630s