Question about TLER

[night_2004]

I've got two WD 750GB Caviar Black drives running in RAID 1, and they've been running in RAID1 for about 12-18 months. I've never altered the TLER values on the drives, nor have I ever had a problem with a drive dropping out of the array.

So question is, are these drives just never needing to trigger ECC or is TLER already enabled or is this whole TLER situation just a bit exaggerated?

RAID1 has always been handled via the ICH9R or ICH10R chipset from Intel.

 

[nitrobass24]

TLER only comes into play when using a parity based array such as RAID5.

You have nothing to worry about.

 

[night_2004]

I'm curious why this doesn't screw with RAID1 then. If the drive is trying to do ECC thus doesn't respond to a read/write, wouldn't the controller assume that one of the drives in RAID1 is faulty?

 

[nitrobass24]

ECC has nothing to do with HDDs or TLER

 

[nitrobass24]

http://en.wikipedia.org/wiki/Time-Limited_Error_Recovery
http://www.hardforum.com/showthread.php?t=1285254&highlight=TLER

 

[night_2004]

ECC has nothing to do with HDDs or TLER

I meant that before TLER triggers the computer is doing something trying to correct the error. It was just a loose use of the ECC term.

To be clear here I'm asking about RAID1, not RAID0.