I need to allocate as much space as possible for iSCSI use. This will be used as targets for OSX 10.5.2 Time machine drives. My question is, how much space should I allocate for 'User Data'? Currently I have 95% for iSCSI and 5% for User Data, though this was completely arbitrary. Since it takes so long to rebuild the Raid 5 configuration, I want to make sure I've allocated as much space to iSCSI as possible. What is User Data space typically used for?