...store data. The Intel version checks the hard drive command requests and prioritizes the ones it judges to be high-prioritydata so the single SSD in a 12-drive storage system handles that data, said Matthew Eszenyi, a technology strategist...
http://news.zdnet.com/2100-9595_22-314110.html
...bits, one bit for Canonical Format Indicator, and last 12 bits for the VLAN ID). VLAN ID 0 is reserved for user prioritydata, which is not supported by ESX Server; VLAN ID 4095 is reserved for future definition. The special native VLAN issue...
http://www.vmware.com/pdf/esx3_vlan_wp.pdf