Here's the error output:
start failed: command '/usr/bin/kvm -id 111 -chardev socket,id=monitor,path=/var/run/qemu-server/111.mon,server,nowait -mon chardev=monitor,mode=readline -vnc unix:/var/run/qemu-server/111.vnc,x509,password -pidfile /var/run/qemu-server/111.pid -daemonize -readconfig /usr/share/qemu-server/pve-usb.cfg -device usb-tablet,bus=ehci.0,port=6 -name Fortimail -smp sockets=1,cores=2 -cpu pentium -nodefaults -boot menu=on,order=c -vga cirrus -tdf -k en-us -device lsi,id=scsi0,bus=pci.0,addr=0x5 -drive file=/var/lib/vz/images/111/fortimail-vm-disk2-250gb.vmdk,if=none,id=drive-scsi1,aio=native -device scsi-disk,bus=scsi0.0,scsi-id=1,drive=drive-scsi1,id=device-scsi1 -device lsi,id=scsi0,bus=pci.0,addr=0x5 -drive file=/var/lib/vz/images/111/fortimail-vm-disk1.vmdk,if=none,id=drive-scsi0,aio=native,boot=on -device scsi-disk,bus=scsi0.0,scsi-id=0,drive=drive-scsi0,id=device-scsi0 -m 784 -netdev type=tap,id=net0,ifname=tap111i0,script=/var/lib/qemu-server/pve-bridge -device e1000,romfile=,mac=0E
D:17:0C:23:84,netdev=net0,bus=pci.0,addr=0x12 -netdev type=tap,id=net1,ifname=tap111i1,script=/var/lib/qemu-server/pve-bridge -device e1000,romfile=,mac=5A:45:46:17:69:1D,netdev=net1,bus=pci.0,addr=0x13 -netdev type=tap,id=net2,ifname=tap111i2,script=/var/lib/qemu-server/pve-bridge -device e1000,romfile=,mac=A2:CF:00:43:65:43,netdev=net2,bus=pci.0,addr=0x14 -netdev type=tap,id=net3,ifname=tap111i3,script=/var/lib/qemu-server/pve-bridge -device e1000,romfile=,mac=C6:06:41:33:79:B3,netdev=net3,bus=pci.0,addr=0x15 -cpuunits 1000' failed: exit code 1 (500)
If the scsi1 is commented out it will boot.