From: david@lang.hm
Subject: Re: SCSI vs SATA
Date: ,
Msg-id: Pine.LNX.4.64.0704052037010.28411@asgard.lang.hm
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In response to: Re: SCSI vs SATA  (Ron)
Responses: Re: SCSI vs SATA  (Richard Troy)
Re: SCSI vs SATA  (Ron)
List: pgsql-performance

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SCSI vs SATA  ("", )
 Re: SCSI vs SATA  (Ron, )
  Re: SCSI vs SATA  (Ron, )
   Re: SCSI vs SATA  (Geoff Tolley, )
    Re: SCSI vs SATA  (, )
     Re: SCSI vs SATA  ("Peter Kovacs", )
      Re: SCSI vs SATA  (Andreas Kostyrka, )
       Re: SCSI vs SATA  (Alvaro Herrera, )
        Re: SCSI vs SATA  ("Peter Kovacs", )
         Re: SCSI vs SATA  (Alvaro Herrera, )
          Re: SCSI vs SATA  (Andreas Kostyrka, )
         Re: SCSI vs SATA  (, )
       Re: SCSI vs SATA  (Rod Taylor, )
     Re: SCSI vs SATA  (Geoff Tolley, )
    Re: SCSI vs SATA  ("", )
     Re: SCSI vs SATA  ("Joshua D. Drake", )
      Re: SCSI vs SATA  (Stefan Kaltenbrunner, )
       Re: SCSI vs SATA  ("Joshua D. Drake", )
        Re: SCSI vs SATA  (Stefan Kaltenbrunner, )
         Can't drop tablespace or user after disk gone  ("Craig A. James", )
          Re: Can't drop tablespace or user after disk gone  (Tom Lane, )
       Re: SCSI vs SATA  ("James Mansion", )
      Re: SCSI vs SATA  (Andreas Kostyrka, )
       Re: SCSI vs SATA  ("Joshua D. Drake", )
        Re: SCSI vs SATA  (, )
         Re: SCSI vs SATA  (Geoff Tolley, )
         Re: SCSI vs SATA  (Bruce Momjian, )
          Re: SCSI vs SATA  ("Joshua D. Drake", )
           Re: SCSI vs SATA  (Bruce Momjian, )
            Re: SCSI vs SATA  ("James Mansion", )
             Re: SCSI vs SATA  (Tom Lane, )
              Re: SCSI vs SATA  (Scott Marlowe, )
               Re: SCSI vs SATA  (Ron, )
                Re: SCSI vs SATA  (, )
                 Re: SCSI vs SATA  (Tom Lane, )
                  Re: SCSI vs SATA  (Greg Smith, )
                   Re: SCSI vs SATA  (Tom Lane, )
                    Re: SCSI vs SATA  (Geoffrey, )
                  Re: SCSI vs SATA  (Michael Stone, )
                   Re: SCSI vs SATA  (Geoffrey, )
               Re: SCSI vs SATA  ("James Mansion", )
                Re: SCSI vs SATA  (Scott Marlowe, )
                 Re: SCSI vs SATA  (, )
                  Re: SCSI vs SATA  (Ron, )
                   Re: SCSI vs SATA  (, )
                    Re: SCSI vs SATA  (Richard Troy, )
                    Re: SCSI vs SATA  (Ron, )
                     Re: SCSI vs SATA  (, )
                      Re: SCSI vs SATA  (Ron, )
                       Re: SCSI vs SATA  (Mark Kirkwood, )
                   Re: SCSI vs SATA  (Michael Stone, )
                    Re: SCSI vs SATA  (Ron, )
                     Re: SCSI vs SATA  (Michael Stone, )
                      Re: SCSI vs SATA  (Ron, )
                       Re: SCSI vs SATA  (Michael Stone, )
                        Re: SCSI vs SATA  (Ron, )
                         Re: SCSI vs SATA  (Michael Stone, )
                 Re: SCSI vs SATA  (Greg Smith, )
                  Re: SCSI vs SATA  (Scott Marlowe, )
                   Re: SCSI vs SATA  (Greg Smith, )
                   Re: SCSI vs SATA  (, )
                    Re: SCSI vs SATA  (Charles Sprickman, )
                     Re: SCSI vs SATA  (, )
                     Re: SCSI vs SATA  (Andreas Kostyrka, )
                   Re: SCSI vs SATA  (Bruce Momjian, )
                    Re: SCSI vs SATA  (Ron, )
                     Re: SCSI vs SATA  (, )
                      Re: SCSI vs SATA  (Ron, )
                       Re: SCSI vs SATA  (, )
                        Re: SCSI vs SATA  ("Joshua D. Drake", )
                        Re: SCSI vs SATA  (Ron, )
                       Re: SCSI vs SATA  (, )
                 Re: SCSI vs SATA  ("James Mansion", )
           Re: SCSI vs SATA  (Carlos Moreno, )
            Re: SCSI vs SATA  ("", )
             Re: SCSI vs SATA  (Arjen van der Meijden, )
             Re: SCSI vs SATA  (Heikki Linnakangas, )
             Re: SCSI vs SATA  (Ron, )
              Re: SCSI vs SATA  ("", )
               Re: SCSI vs SATA  ("Joshua D. Drake", )
               Re: SCSI vs SATA  ("Alex Deucher", )
               Re: SCSI vs SATA  (Arjen van der Meijden, )
               Re: SCSI vs SATA  (, )
     Re: SCSI vs SATA  (Geoff Tolley, )
     Re: SCSI vs SATA  (Scott Marlowe, )
      Re: SCSI vs SATA  (Jeff Frost, )
       Re: SCSI vs SATA  ("", )
 Re: SCSI vs SATA  ("Brian A. Seklecki", )
 Re: SCSI vs SATA  (Ron Mayer, )
 Re: SCSI vs SATA  (Ron, )
 Re: SCSI vs SATA  (Arjen van der Meijden, )
  Re: SCSI vs SATA  ("", )
   Re: SCSI vs SATA  (Arjen van der Meijden, )

On Thu, 5 Apr 2007, Ron wrote:

> At 10:07 PM 4/5/2007,  wrote:
>> On Thu, 5 Apr 2007, Scott Marlowe wrote:
>>
>> > Server class drives are designed with a longer lifespan in mind.
>> >
>> > Server class hard drives are rated at higher temperatures than desktop
>> > drives.
>>
>> these two I question.
>>
>> David Lang
> Both statements are the literal truth.  Not that I would suggest abusing your
> server class HDs just because they are designed to live longer and in more
> demanding environments.
>
> Overheating, nasty electrical phenomenon, and abusive physical shocks will
> trash a server class HD almost as fast as it will a consumer grade one.
>
> The big difference between the two is that a server class HD can sit in a
> rack with literally 100's of its brothers around it, cranking away on server
> class workloads 24x7 in a constant vibration environment (fans, other HDs,
> NOC cooling systems) and be quite happy while a consumer HD will suffer
> greatly shortened life and die a horrible death in such a environment and
> under such use.

Ron,
   I know that the drive manufacturers have been claiming this, but I'll
say that my experiance doesn't show a difference and neither do the google
and CMU studies (and they were all in large datacenters, some HPC labs,
some commercial companies).

again the studies showed _no_ noticable difference between the
'enterprise' SCSI drives and the 'consumer' SATA drives.

David Lang


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