Re: Intel SRCS16 SATA raid?

От: Bruce Momjian
Тема: Re: Intel SRCS16 SATA raid?
Дата: ,
Msg-id: 200505120226.j4C2QSL07363@candle.pha.pa.us
(см: обсуждение, исходный текст)
Ответ на: Re: Intel SRCS16 SATA raid?  ()
Список: pgsql-performance

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Intel SRCS16 SATA raid?  (Greg Stark, )
 Re: Intel SRCS16 SATA raid?  ("Mohan, Ross", )
  Re: Intel SRCS16 SATA raid?  ("Joshua D. Drake", )
   Re: Intel SRCS16 SATA raid?  (Marinos Yannikos, )
    Re: Intel SRCS16 SATA raid?  (Alex Turner, )
     Re: Intel SRCS16 SATA raid? (somewhat OT)  (Marinos Yannikos, )
 Re: Intel SRCS16 SATA raid?  (, )
  Re: Intel SRCS16 SATA raid?  (Alex Turner, )
   Re: Intel SRCS16 SATA raid?  (Alex Turner, )
    Re: Intel SRCS16 SATA raid?  (, )
  Re: Intel SRCS16 SATA raid?  (Bruce Momjian, )
 Re: Intel SRCS16 SATA raid?  ("Dave Held", )
  Re: Intel SRCS16 SATA raid?  (Alex Turner, )
  Re: Intel SRCS16 SATA raid?  (Alex Turner, )
   Re: Intel SRCS16 SATA raid?  (Geoffrey, )
 Re: Intel SRCS16 SATA raid?  ("Dave Held", )
  Re: Intel SRCS16 SATA raid?  (, )
  Re: Intel SRCS16 SATA raid?  (Alex Turner, )
   Re: Intel SRCS16 SATA raid?  (, )
   Re: Intel SRCS16 SATA raid?  (Vivek Khera, )
    Re: Intel SRCS16 SATA raid?  (Alex Turner, )
 Re: Intel SRCS16 SATA raid?  ("Dave Held", )

 wrote:
> Greg,
>
> I posted this link under a different thread (the $7k server thread).  It is
> a very good read on why SCSI is better for servers than ATA.  I didn't note
> bias, though it is from a drive manufacturer.  YMMV.  There is an
> interesting, though dated appendix on different manufacturers' drive
> characteristics.
>
> http://www.seagate.com/content/docs/pdf/whitepaper/D2c_More_than_Interface_ATA_vs_SCSI_042003.pdf

I have read this and it is an _excellent_ read about disk drives.  The
bottom line is that the SCSI/IDE distinctions is more of an indicator of
the drive, rather than the main feature of the drive.  The main feature
is that certain drives are Enterprise Storage and are designed for high
reliability and speed, while Personal Server drives are designed for low
cost.  The IDE/SCSI issue is only an indicator of this.

There are a lot more variabilities between these two types of drives
than I knew.  I recommend it for anyone who is choosing drives for a
system.

--
  Bruce Momjian                        |  http://candle.pha.pa.us
                 |  (610) 359-1001
  +  If your life is a hard drive,     |  13 Roberts Road
  +  Christ can be your backup.        |  Newtown Square, Pennsylvania 19073


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