Hey but this WD site (http://wdc.custhelp.com/app/answers/detail/a_id/996/~/support-for-wd-desktop-drives-in-a-raid-0-or-raid-1-configuration) says red does not have TLER.
Critical: WD Blue, Green, Red or Black hard drives are not recommended for and are not warranted for use in RAID environments utilizing Enterprise HBAs and/or expanders and in multi-bay chassis, as they are not designed for, nor tested in, these specific types of RAID applications. For all Business Critical RAID applications, please consider WD’s Enterprise Hard Drives that are specifically designed with RAID-specific, time-limited error recovery (TLER), are tested extensively in 24x7 RAID applications, and include features like enhanced RAFF technology and thermal extended burn-in testing.
For more information on the differences between a RAID Edition (RE) drive and a Desktop drive please see Answer ID 1397: What is the difference between Desktop edition and RAID (Enterprise) edition hard drives?.