[kwlug-disc] 4TB drive throwing errors - what's current drive thinking these days?
Digimer
lists at alteeve.ca
Sun May 8 23:31:52 EDT 2016
These helium drives are distinctly aimed at the archival world. They're
an alternative to Ultrium tapes as best as I can figure. So the low low
duty cycle doesn't surprise me in the least.
digimer
On 08/05/16 11:04 PM, L.D. Paniak wrote:
> I noticed these drives have an explicit workload limit (not sure if it
> affects warranty). In:
> http://www.seagate.com/www-content/product-content/enterprise-hdd-fam/enterprise-capacity-3-5-hdd/enterprise-capacity-3-5-hdd/en-us/docs/100791104b.pdf
>
> " Maximum Rated Workload | Maximum rate of <550TB/year"
>
> Apparently this the 550TB is for read+write data transferred.
> That does not seem like much for a 10TB drive - only 55 whole disk
> and it includes reads (unlike similar ratings for flash drives).
> Weekly ZFS scrubs on a mostly-full drive would eat up almost all of that
> rating.
>
> While I can appreciate that a drive at 90% duty-cycle will have a shorter
> life than one at 10%, more data on just how short that life will be
> would be
> welcome. Maybe the 8TB drive with the same 550TB/yr rating is a better
> value?
>
>
> On 05/08/2016 10:28 PM, Digimer wrote:
>> On 08/05/16 10:16 PM, William Park via kwlug-disc wrote:
>>> On Sun, May 08, 2016 at 09:45:47PM -0400, Digimer wrote:
>>>> Using Seagate Constellations, btw. The unreliable ones were the Seagate
>>>> Barracudas. I looked at WD and the various colours all had bad failure
>>>> rates (though not as bad as the Barracuda's).
>>> Off topic... but I just saw 8TB harddisk.
>>>
>> Here is 10TB;
>>
>> http://www.seagate.com/ca/en/internal-hard-drives/enterprise-hard-drives/hdd/enterprise-capacity-3-5-hdd-10tb/
>>
>
>
>
>
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--
Digimer
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