Re: Estimating Database Disk Space

Lists: pgsql-docs
From: Richard A Lough <ralough(dot)ced(at)dnet(dot)co(dot)uk>
To: pgsql-docs(at)postgresql(dot)org
Subject: Estimating Database Disk Space
Date: 2002-04-02 17:42:24
Message-ID: 3CA9ED80.40F2B87C@dnet.co.uk
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Hi All,

I have attached my attempt at documenting the use of
hard disk storage by a postgres database. I'll point out
that I am still on the learning curve for postgres, and
my assumptions may well be completely wrong.

The main point I think that needs validation is whether
it is best to create a model of a database in order to get
an accurate estimate of the space needed.

TIA

Richard A Lough

Attachment Content-Type Size
temp.postgres.diskstore.txt text/plain 5.4 KB

From: Peter Eisentraut <peter_e(at)gmx(dot)net>
To: <ralough(at)iee(dot)org>
Cc: <pgsql-docs(at)postgresql(dot)org>
Subject: Re: Estimating Database Disk Space
Date: 2002-04-03 04:55:11
Message-ID: Pine.LNX.4.30.0204022352330.686-100000@peter.localdomain
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Richard A Lough writes:

> The main point I think that needs validation is whether
> it is best to create a model of a database in order to get
> an accurate estimate of the space needed.

That's pretty much it. If you want to know how much space something is
going to take, create it and look at it. I don't think we want to get
users involved into counting the bits of each piece of overhead that comes
with a database. That creates assumptions that are going to be hard to
overcome or change in the future.

--
Peter Eisentraut peter_e(at)gmx(dot)net