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Re: Tablespace size in TB

Greg Hennessy <greg.hennessy@gmail.com>

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From: Greg Hennessy <greg.hennessy@gmail.com>
To: Jan Karremans <karremans.ja@gmail.com>
Cc: masheed ullah <masheedullah@gmail.com>, Laurenz Albe <laurenz.albe@cybertec.at>, Thiemo Kellner <thiemo@gelassene-pferde.biz>, pgsql-general@lists.postgresql.org
Date: 2026-05-03T15:54:57Z
Lists: pgsql-general 
Is the fact that other companies are taking 

  Over support for pgBackRest documented?


  



  

  
    Sent from my iPhone
  
  
    

    
      On May 3, 2026, at 8:48 AM, Jan Karremans <karremans.ja@gmail.com> wrote:

      

    
  
  
    
      
      You can safely recommend pgBackRest as several PostgreSQL companies have already stepped up to take over/fork pgBackRest.

      
        

        
          
            On 3 May 2026, at 14:30, masheed ullah <masheedullah@gmail.com> wrote:
          

          
            
              The issue is, 13tb database BARMAN backup is taking 20 hours and restore takes 24 hours.

              So the main agenda is to reduce the backup time to less than 10hours.
              
                

                 So does any solution/ tool I recommend to client.
              
              
                

              
              
                . I just checked pgBeckRest has no more support, so I can not suggest it to client.
              
            

            
              
                On Sun, May 3, 2026 at 3:25 PM Jan Karremans <karremans.ja@gmail.com> wrote:

              
              
                My thinking would be to have the different directories on different tiers of storage.

                

                Cheers,

                Jan

                

                > On 3 May 2026, at 14:21, Laurenz Albe <laurenz.albe@cybertec.at> wrote:

                >

                > On Sun, 2026-05-03 at 14:10 +0200, Jan Karremans wrote:

                >> Contrary to Oracle, a table space in PostgreSQL is a directory. And not a logical abstraction.

                >> Moving tables from one table space to another becomes so much easier by that.

                >

                > I am confused.  Yes, if you have more than a single (default) tablespace,

                > moving tables between tablespaces becomes possible and hence easier.

                > But why would you want to move tables between tablespaces in the first place?

                >

                > Yours,

                > Laurenz Albe

                

              
            
            
              

            
            
              

            --

            
              
                Best Regards, 

                Masheed Ullah