Re: database on selected disk - Mailing list pgsql-admin

From Holger Jakobs
Subject Re: database on selected disk
Date
Msg-id 842cebe7-93c9-2ea0-0b64-4d4603348f26@jakobs.com
Whole thread Raw
In response to database on selected disk  (Zahid Rahman <zahidr1000@gmail.com>)
Responses Re: database on selected disk
Re: database on selected disk
List pgsql-admin
Am 18.10.21 um 19:04 schrieb Zahid Rahman:
> Hi
>
> I have two disks attached to my Raspberry pi 4 .
>
> One disk is a 2TB with a partition called postgres on   /dev/sdb/sd1 .
> When creating databases this is where I wish to create them.
>
> This is not the disk with the operating system installed .
> If I install postgres with pgadmin using  apt install,
> any database I create  will be installed on  disk /dev/sda/sda1 by default.
>
> Can you please give me a HOW-TO on choosing the partition on a
> particular disk  when creating a database  or perhaps even a table.
>
> Thanks
> Zahid
>
>
Hi Zahid,

when setting up a database cluster with initdb, you determine the 
directory path for the cluster.

So make sure the directory path resides on the disk you want it to be.

What is also possible is using a symbolic link to redirect to another 
directory on the intended disk.

On the other hand, it's not possible to have some databases of a cluster 
on one drive and some on another. A database cluster cannot be 
distributed among disks.

Since you can have any number of database clusters on a machine, this 
doesn't impose a problem.

Regards,

Holger

-- 
Holger Jakobs, Bergisch Gladbach, Tel. +49-178-9759012


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