Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows

От: Pierre C
Тема: Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows
Дата: ,
Msg-id: op.vnwwyom4eorkce@apollo13
(см: обсуждение, исходный текст)
Ответ на: Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows  (Gael Le Mignot)
Список: pgsql-performance

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Compared MS SQL 2000 to Postgresql 9.0 on Windows  (Tom Polak, )
 Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows  ("Kevin Grittner", )
 Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows  (Andy Colson, )
 Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows  (Andres Freund, )
 Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows  (Craig James, )
 Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows  (Andy Colson, )
  Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows  (Richard Broersma, )
   Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows  (Kenneth Marshall, )
    Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows  (Andy Colson, )
     Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows  (Tom Polak, )
      Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows  (Craig James, )
      Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows  (Gary Doades, )
      Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows  ("Kevin Grittner", )
      Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows  ("Pierre C", )
       Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows  (Tom Polak, )
        Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows  (Craig James, )
         Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows  (Scott Marlowe, )
          Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows  (Gael Le Mignot, )
           Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows  (Scott Marlowe, )
           Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows  ("Pierre C", )
        Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows  (Richard Broersma, )
         Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows  (Justin Pitts, )
        Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows  (Rob Wultsch, )
        Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows  (Robert Haas, )
         Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows  (Andy Colson, )
         Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows  (Tom Polak, )
          Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows  (Robert Haas, )
        Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows  (Andy Colson, )
  Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows  (Gary Doades, )
 Re: Compared MS SQL 2000 to Postgresql 9.0 on Windows  (Mladen Gogala, )

>  > The real performance problem with RAID 5 won't show up until a drive
>  > dies and it starts rebuilding
>
> I don't  agree with that. RAID5 is  very slow for random  writes, since
> it needs to :

"The real problem" is when RAID5 loses a drive and goes from "acceptable"
kind of slow, to "someone's fired" kind of slow. Then of course in the
middle the rebuild, a bad sector is discovered in some place the
filesystem has never visited yet on one of the remaining drives, and all
hell breaks loose.

RAID6 is only one extra disk...


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