I have 3 Novell 6.5 SP7 servers using ZDM7SP1IR3a_HP3 along with the tftp files from ZEN7SP1IR3a_HP3-February_09 in a 3 VLAN networking environment. The servers are connected to a Gigabit Switch. Multicasting takes about 4 to 6 hours using pxe boot. I have a few questions:

1.) Does anyone have suggestions on how to decrease imaging times?
2.) Do I need to do anything with the hdparm settings that I have seen others talk about?
3.) I am having trouble with SATA drives not imaging. About 25 % of the laptops that I start actually finish each time. Any ideas ?