Re: data=writeback

From: Chris <list(at)1006(dot)org>
To: pgsql-performance(at)postgresql(dot)org
Subject: Re: data=writeback
Date: 2004-04-08 09:44:29
Message-ID: 1081417469.5037.50.camel@dell
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> > > LABEL=/usr/local/pgsql /usr/local/pgsql ext3
> > > noatime,data=writeback 1 2
> > > LABEL=/usr/local/pgsql /usr/local/pgsql/wal ext3
> > > noatime,data=ordered 1 2
> >
> > The same label mounted on two different mount points is probably I typo?
>
>
> No, the same label mounted on two different mount points is not a typo. This
> is the way it is in my /etc/fstab.
>
> Note that I did not create this file myself, it was created by the RedHat
> Enterprise Linux 3 ES installer. I created different partitions for the data
> directory (/usr/local/pgsql) and the wal directory (/usr/local/pgsql/wal)
> using the installer and this is how the /etc/fstab file ended up.
>
> Why, is this bad? They use the same label, but use different mount points?
> Can this cause problems?

Mmm... how can the mounter distinguish the two partitions?

Maybe I'm missing a concept here, but I thought labels must uniquely
identify partitions?

Seems suspicious to me...

Does it work? When you give just "mount" at the command line what output
do you get?

Bye, Chris.

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