[colug-432] HDD Questions

[js573712 at gmail.com]

Tom et al.,

These car analogies are kinda weirding me out. 

If reliability is your primary concern, why not just buy a few(2-3) of the same HDD/SSD  and automate your back-ups.  Storage devices are hardware, and Six Sigma be dammed, hardware fails.

AFAIK you'll have a hard time finding anything but anecdotal evidence about which brands / models last longer. I know some sys admins like to space out their HDD orders because they know some batches are bound to be bad.

You *could* go crazy and build a RAID 6 controller (fault tolerant at <= 2 simultaneous drive failures). But that'd be silly albeit (fun|educational). 

Best, 
--
Johnathon Scott
https://pergraphicum.net

-----Original Message-----
From: "tom" <thomas.w.cranston at gmail.com>
Sent: ‎9/‎8/‎2016 17:14
To: "Central OH Linux User Group - 432xx" <colug-432 at colug.net>
Subject: Re: [colug-432] HDD Questions



On 09/08/2016 11:49 AM, David A. Desrosiers wrote:
> On 9/7/16 3:42 PM, Joshua Kramer wrote:
>> Unless you are doing very heavy video editing (or other
>> I/O intensive work), you won't notice any difference between
>> advertised speed, and the speed you actually get.  Suppose you look at
>> a SSD that is advertised to have the speed of a Ferrari.  You are
>> currently driving a Volkswagen Jetta.  When you hook it up, you find
>> that it has the speed of a Porsche- not quite as fast as a Ferrari,
> Careful... there's a HUGE difference in speed and performance on an SSD
> (more noticeably on NVME than pure SSD) if you plug that drive into a
> SATA port vs. a PCIe port.
>
> I'm seeing 2.8Gb/sec on-disk, write speed with my NVME drive in the PCIe
> port, and 900Mb/sec for the SAME drive plugged into the SATA port
> (tested with hdparm -Tt).
>
> It makes an ENORMOUS difference.
>
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I'm running a 9 year old Dell Inspiron 1520 laptop. Think Toyota 
Corolla. Not fancy but get's the job done. Easy to service. I don't 
think a lightning fast drive is going to get me down the road much 
faster. Please correct me if I am wrong. I am concerned about 
reliability. The Seagate Barracuda 750 GB drive I have had for around 3 
years is showing beginning to fail.

Tom
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