- 4TB, SATA 6Gb/s, 64MB
- Higher performance with Seagate AcuTrac servo technology
- Best for Desktop or all-in-one PCs, home servers and Entry-level (DAS)
TLER - This is not a RAID Drive 11/28/2013
The drive seems to be fine as a desktop drive.
This is not a NAS or RAID Drive.
Enterprise Drives have a setting called TLER, which stands for Time Limited Error Recovery. This causes a drive to limit error recovery attempts to within 7 seconds.
Raid controllers, and yes this also means home NAS boxes, expect a response within 8 seconds, and if they don't get it, they fail the drive and take it out of the Raid array. Desktop drives will try longer than 8 seconds to recover from a read error.
That is the difference between the WD Red drives and the Black drives. The Red drives are "made" to be used in Raid arrays, although I think the only difference is that TLER is set in the Red Drives.
There used to be a utility named WDTLER.exe, that would set TLER so that a desktop drive could be used in a Raid array, but now WD and I guess Seagate make it not a settable parameter.
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