I get them all the time, not cpu but i/o starvation, when I start up a bunch of vm's at the same time.
MVF monitoring tool has detected that the system is experiencing poor I/O operations.
This may be due to slow network connections, heavy disk I/O operations or problems with the data storage.
Linux 2.6.32-573.12.1.el6.x86_64 (vmbg70) 03/04/16 _x86_64_ (4 CPU)
avg-cpu: %user %nice %system %iowait %steal %idle
0.21 0.00 0.15 0.13 0.00 99.50
Device: rrqm/s wrqm/s r/s w/s rMB/s wMB/s avgrq-sz avgqu-sz await svctm %util
sda 0.00 4.76 0.06 4.56 0.00 0.03 14.82 0.07 14.87 1.03 0.47
md1 0.00 0.00 0.06 8.46 0.00 0.03 7.89 0.00 0.00 0.00 0.00
dm-0 0.00 0.00 0.06 8.27 0.00 0.03 8.06 0.56 65.59 0.56 0.47
dm-1 0.00 0.00 0.00 0.01 0.00 0.00 8.00 0.00 63.45 4.85 0.01
md0 0.00 0.00 0.00 0.00 0.00 0.00 13.69 0.00 0.00 0.00 0.00