WD Red vs SE/RE drives for mdadm RAID1 (TLER?)

WD Red vs SE/RE drives for mdadm RAID1 (TLER?)

[Mark Knecht]

I need to purchase a couple of new drives for a mdadm type RAID1. In
reviewing the WD website I did not find the TLER feature on the WD Red
spec sheets. The TLER feature is clearly called out on both the SE &
RE lines.

Should the lack of this feature eliminate the WD Red line from
consideration for a high-use (12-16 hours a day) home machine? I
currently use smaller RE drives and have been very happy but the
current price difference between WD Red and WD SE/RE is about a 50%
premium. (General price check at Amazon.)

Thanks,
Mark

Re: WD Red vs SE/RE drives for mdadm RAID1 (TLER?)

[Brad Campbell]

On 11/06/14 23:35, Mark Knecht wrote:
> I need to purchase a couple of new drives for a mdadm type RAID1. In
> reviewing the WD website I did not find the TLER feature on the WD Red
> spec sheets. The TLER feature is clearly called out on both the SE &
> RE lines.
>

It's there. I have several of them here and they all have it. I also 
have 12 greens of which 11 have TLER (must be early models). I know the 
new ones don't.

Re: WD Red vs SE/RE drives for mdadm RAID1 (TLER?)

[Phil Turmel]

On 06/11/2014 10:17 PM, Brad Campbell wrote:
> On 11/06/14 23:35, Mark Knecht wrote:
>> I need to purchase a couple of new drives for a mdadm type RAID1. In
>> reviewing the WD website I did not find the TLER feature on the WD Red
>> spec sheets. The TLER feature is clearly called out on both the SE &
>> RE lines.
>>
> 
> It's there. I have several of them here and they all have it. I also
> have 12 greens of which 11 have TLER (must be early models). I know the
> new ones don't.

I took delivery of four brand new Reds today -- haven't opened the boxes
yet.  I'll verify tomorrow for y'all, but I'll be shocked and dismayed
if SCTERC doesn't default to 7.0 seconds.

Phil

Re: WD Red vs SE/RE drives for mdadm RAID1 (TLER?)

[Mark Knecht]

Brad & Phil,
   Thanks for the info. I received an email off-list from an
individual using WD Reds, along with some Seagates, in a RAID6. scterc
is there in his Reds and is set to 7 seconds by default. I ordered a
couple to try out here at home.

Cheers,
Mark

On Wed, Jun 11, 2014 at 7:28 PM, Phil Turmel <philip@turmel.org> wrote:
> On 06/11/2014 10:17 PM, Brad Campbell wrote:
>> On 11/06/14 23:35, Mark Knecht wrote:
>>> I need to purchase a couple of new drives for a mdadm type RAID1. In
>>> reviewing the WD website I did not find the TLER feature on the WD Red
>>> spec sheets. The TLER feature is clearly called out on both the SE &
>>> RE lines.
>>>
>>
>> It's there. I have several of them here and they all have it. I also
>> have 12 greens of which 11 have TLER (must be early models). I know the
>> new ones don't.
>
> I took delivery of four brand new Reds today -- haven't opened the boxes
> yet.  I'll verify tomorrow for y'all, but I'll be shocked and dismayed
> if SCTERC doesn't default to 7.0 seconds.
>
> Phil
>