The mix and match of 36.4 GB and 72.8 GB drives/carriers concerns me, traditionally a G4 server should be one or the other. The mix and match of Disk-1 and Disk-5 being different from the rest means either improperly labeled drives or someone has utterly lost their mind.
I also have to wonder regarding the absence of any 18.2 GB drives, though...a pair of those are *supposed* to be RAID 1 for the OS.
(I may have some unfortunate memories from this particular version...I think this was the last of the 32 bit servers from HP, and I hated it from the very bottom of my heart.)
Actually, the MX7000 is not terrible on noise comparatively. Not silent, obviously, but no worse than a typical 1U server.
Now, having that many compute modules may make that thing loud...