[Tfug] And another one down

[John Hubbard]

"Timothy D. Lenz" <tlenz at vorgon.com> wrote:
>
>
>On 9/9/2013 10:45 PM, Harry McGregor wrote:
>> On 9/9/13 10:22 PM, Timothy D. Lenz wrote:
>>>
>>>
>>> On 9/9/2013 10:07 PM, Harry McGregor wrote:
>>>> On 9/9/13 9:52 PM, Timothy D. Lenz wrote:
>>>>
>>>> <snip>
>
>> HGST is what used to be Hitachi Global Storage Technologies, which
>> before that was IBM's drive division.  HGST is now owned by WD, but
>> operated as a separate company due to restrictions the Chinese
>> government put on the merger.
>>
>> They are not all that expensive, you were probably looking at a 10K
>or
>> 15K SAS drive for that range.
>>
>> Here is a 1TB ultrastar with 3 year warranty for $85:
>> http://www.newegg.com/Product/Product.aspx?Item=N82E16822145420
>>>
>>> I just noticed that WD has other drives now besides the
>>> red/green/black/blue. Haven't looked into then much. But looking at
>>> WD's site: http://www.wdc.com/en/products/catalog/
>>>
>>> I don't see an SAS line. Why black before red? I thought red was
>>> designed for array use.
>>
>> The WD Xe line is SAS, and the WD Re line has some SAS drives.  The
>> black vs red is more speed vs array optimized.  The Blacks are
>supported
>> in consumer level arrays, and are 7200 RPM, the Reds are
>"intellipower"
>> which means they are in the 5900 RPM range.
>
>I did not know that. Though 5900 "might" be fast enough to record 1 or 
>two shows at the same time, often when new seasons start, you get 3 or
>4 
>on at the same time to check out. With 5 ATSC tunners, VDR has maxed
>out 
>recording slots because of start/stop overlap. I'm sure I have had up
>to 
>4 recordings going at once.
>

Anand Tech recently compared the WD Red with its Seagate counterpart and two different WD 'enterprise' drives. They gave some performance numbers that might be relevant. 

 http://www.anandtech.com/show/7258/battle-of-the-4-tb-nas-drives-wd-red-and-seagate-nas-hdd-faceoff

- john
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