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From: Stephen Fuld <sfuld@alumni.cmu.edu.invalid>
Newsgroups: comp.arch
Subject: Re: fuzzy disks, Is Parallel Programming Hard, And, If So, What Can
 You Do About It?
Date: Mon, 26 May 2025 21:52:45 -0700
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On 5/26/2025 12:19 PM, John Levine wrote:
> According to Stefan Monnier  <monnier@iro.umontreal.ca>:
>> Stephen Fuld [2025-05-26 11:16:25] wrote:
>>> https://www.seagate.com/innovation/multi-actuator-hard-drives/
>>
>> Hmmm, hard to believe it makes commercial sense: if you need higher
>> performance, when would this be price-competitive with an SSD?
>>
>> Also, that page is very light on details, but the image they include
>> suggests the two actuators are used on separate platters, so it's akin
>> to cramming a 2-disk-RAID0 into a single HDD enclosure.
> 
> The data sheet says it is in effect two 7TB disks in a single enclosure.
> 
> It seems to have come and gone.  Nobody has them new, refurbished are
> $150 - $200 on eBay.  An SSD of similar size is in the $2000 range so
> it would have made sense for a data warehouse.

I thought it would.  I believe you about its current state, but I wonder 
why it wasn't more successful.  It seems like a big improvement in 
throughput for very little extra cost.



-- 
  - Stephen Fuld
(e-mail address disguised to prevent spam)