WD30EZRX Head parking

Can anyone tell me what the latest manufacture date is where WD IDLE has worked on these disks - and what firmware.

Im looking to purchase ~40 of these for a slow storage SAN at work but will not proceed if the headparking cannot be increased from 8 sec or disabled without some performance issues.

Thankyou

Paul

Not sure about this one dude

try calling WD directly

if you can find drives from the middle of 2011 and wd20eras i think it will work

i dont have newer drives so i didnt test it