Re: [GENERAL] server hardware recommendations (the archives aredead)

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: "J(dot) Roeleveld" <j(dot)roeleveld(at)softhome(dot)net>
Cc: pgsql-list <pgsql-general(at)hub(dot)org>
Subject: Re: [GENERAL] server hardware recommendations (the archives aredead)
Date: 1999-12-15 23:51:35
Message-ID: 199912152351.SAA09027@candle.pha.pa.us
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> > What filesystem? I know (thank god) very little about Linux, but
> > there have been comments here by some Linux folks (Thomas, wasn't it
> > you?) that indicated that ext2fs sucks for this? Are you running with
> > fsync() on or off?
>
> What is the problem with ext2fs? Is it just performance? or is there a
> serious chance for me losing data?

The only comment made was something I said about raw devices on Linux.
Someone said there is a raw device option for Linux and whether we
wanted to try using it. I said most modern filesystems can move data at
the speed of the disk, so raw devices really don't buy much. I
mentioned that ext2 is not a modern file system. The *BSD filesystems
are an example of a modern file system. This may be what Marc is
remembering.

Unfortunately, this does not relate to the user's question.

(Raw devices do have advantages because of read-ahead control and disk
flush control. However, we seem to be doing fine without these marginal
improvements, and raw devices have a host of complex problems when
implemented.)

--
Bruce Momjian | http://www.op.net/~candle
maillist(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026

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