I use this HDD into a RAID configuration where is working fine.
I haven't had a very good opinion about Hitachi before buying this storage device which it had already 2 HDD same type so I've got another one so I can do a RAID 5.
I can't say so much at this time on how this is working because it's doing the job very well for the moment but I will need more time to decide if this is reliable or not.