Re: Dual Xeon + HW RAID question

От: Andrew Sullivan
Тема: Re: Dual Xeon + HW RAID question
Дата: ,
Msg-id: 20030714111925.GD24166@libertyrms.info
(см: обсуждение, исходный текст)
Ответ на: Re: Dual Xeon + HW RAID question  ("Nikolaus Dilger")
Список: pgsql-performance

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Dual Xeon + HW RAID question  ("alexandre arruda paes :: aldeia digital", )
 Re: Dual Xeon + HW RAID question  (Rod Taylor, )
 Re: Dual Xeon + HW RAID question  ("Nikolaus Dilger", )
  [OT] Such incredible h/w (was Re: Dual Xeon + HW RAID question)  (Ron Johnson, )
  Re: Dual Xeon + HW RAID question  (Andrew Sullivan, )
  Re: Dual Xeon + HW RAID question  (SZUCS Gábor, )
   Re: Dual Xeon + HW RAID question  ("alexandre paes :: aldeia digital", )
   Re: Dual Xeon + HW RAID question  (Bruce Momjian, )
    Re: Dual Xeon + HW RAID question  ("Mindaugas Riauba", )
     Re: Dual Xeon + HW RAID question  (Bruce Momjian, )
      Re: Dual Xeon + HW RAID question  (SZUCS Gábor, )
       Re: Dual Xeon + HW RAID question  (Jord Tanner, )
        Re: Dual Xeon + HW RAID question  (Bruce Momjian, )
         Re: Dual Xeon + HW RAID question  (Jord Tanner, )
          Re: Dual Xeon + HW RAID question  (Bruce Momjian, )
           Re: Dual Xeon + HW RAID question  (Jord Tanner, )
       Re: Dual Xeon + HW RAID question  (Bruce Momjian, )

On Sat, Jul 12, 2003 at 11:25:14AM -0700, Nikolaus Dilger wrote:
> Alexandre,
>
> Since you want the fastest speed I would do the 2 data
> disks in RAID 0 (striping) not RAID 1 (mirroring).

Note that RAID 0 buys you nothing at all in redundancy.  So if the
point is to be able to recover from a disk failure, you need 1 (or
some combination of 0 and 1, or 5).

A


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