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Seagate > 
Item#: N82E16822178338
Seagate Desktop HDD.15 ST4000DM000 4TB 5900 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • 4TB, SATA 6Gb/s NCQ
  • For desktop or home server use
  • Store active archive data
  • Outfit direct - attached, entry-level external storage devices (DAS)
  • 2 years limited warranty
  • $179.99
  • $144.99
  • Save: $35.00 (19%)
  • Free Shipping (restrictions apply)

Pros:

The drive seems to be fine as a desktop drive.

Cons:

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.

Other Thoughts:

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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  • Todd T.
  • Owned For: less than 1 day


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Item#: N82E16822178338
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