.vhd file - OK to create one that fills physical disk?

what best practice percentage virtual hard disks should consume of full capacity of physical disk (or raid array)?

thanks.

first generic response. if going use disk virtual machine, take of space. can make fixed vhd or attach directly described here: http://blogs.msdn.com/virtual_pc_guy/archive/2008/04/07/attaching-physical-hard-disks-to-hyper-v-vms.aspx

if want able make snapshots, won't able use directly attached physical disk.

if concerned might take "too much" of physical disk when creating vhd of largest possible size, don't worry, wizard won't let take much. grab can , don't space go waste.

now specific response multiple disks. when have multiple physical disks, ideal maximizing performance have 1 vhd per physical disk. avoids contention. if don't that, raid 0 offer best performance. raid 5 have slow writes.

for sql server, think of works best on physical machine. log files on different disk data files, better put indexes , tables on separate disks. have os on own disk, etc. want carry kind of i/o compartmentalization on virtual world. everywhere physical sql server have disk, create vhd , put vhd on separate physical disk.

Windows Server  >  Hyper-V