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Message: <blockquote data-quote="Kotik" data-source="post: 1137849" data-attributes="member: 89825">I am a noob ignore me <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile    :)" loading="lazy" data-shortname=":)" />You are right. Go with Red!I just read that Red has a nice feature that Green doesn't.<a href="http://www.wdc.com/en/library/other/2579-001098.pdf" target="_blank">TLER</a> (Time Limited Error Recovery) is a very important feature if you will be using the drive(s) in RAID since it limits the amount of time a hard drive can spend trying to recover from an error. Normally, if a data error is detected the hard drive will attempt to recover the data and repair the error. Depending on the nature and severity of the error, this can take anywhere from a few milliseconds to a couple of minutes. Normally, this isn't a big deal - it just results in the data not being available for a bit longer than normal. However, RAID controllers only allow for a short amount of recovery time (usually about 7-14 seconds) before the controller assumes that the drive is having problems, drops the drive from the array, and marks the array as degraded.What TLER does is limit the amount of time the hard drive can spend trying to repair an error before giving up. Since many types of RAID have built-in error correcting, it is preferable to let the RAID itself repair the error than to let the hard drive drop and degrade the RAID array. While TLER is absolutely great if the drive is used in a RAID array, it is not useful (and could even be a negative) if the drive is simply a stand-alone drive. Luckily, WD has provided us with proprietary tools that allow us disable TLER on systems that do not have RAID arrays.And on the power consumption front:Head parking delay Green is 8 seconds and Red is 300 seconds.These are the two major differences that i could find.</blockquote>

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