Re: what is the solution like oracle DB's datafile

Hello,

dafafile this oracle like this example. can be added to another hdd.

ALTER TABLESPACE lmtbsb
ADD DATAFILE '/u02/oracle/data/lmtbsb02.dbf' SIZE 1M;

ALTER TABLESPACE lmtbsb
ADD DATAFILE '/u03/oracle/data/lmtbsb02.dbf' SIZE 1M;

ALTER TABLESPACE lmtbsb
ADD DATAFILE 'e:\data\lmtbsb02.dbf' SIZE 1M;

ALTER TABLESPACE lmtbsb
ADD DATAFILE 'f:\data2\lmtbsb02.dbf' SIZE 1M;

i understand about that LVM solution. it is true that using this method can
be done. I'm just asking for a solution at the database level.

thank you
Yours faithfully

yudianto

On Sun, Jan 30, 2022 at 9:17 PM Julien Rouhaud <rjuju123(at)gmail(dot)com> wrote:

> On Sun, Jan 30, 2022 at 08:51:02PM +0700, Yudianto Prasetyo wrote:
> >
> > thanks for other solutions in the operating system section. LVM, RAID is
> > indeed one solution to this problem.
> >
> > Maybe there is another solution in the postgresql database like the
> > datafile in oracle DB?
>
> As I said I don't know how datafiles in oracle are working. All you have
> on
> postgres is tablespaces, default tablespaces and moving relations from one
> tablespaces to another.
>
> In general, postgres doesn't try to reimplement solution to problems that
> are
> nicely solved at the operating system level, so if those datafile are
> reimplementing something similar to LVM, then no postgres doesn't have
> something like that and probably doesn't want it.
>