Re: Are ZFS snapshots unsafe when PGSQL is spreading through multiple zpools?

Rob Sargent <robjsargent@xxxxxxxxx> · Wed, 18 Jan 2023 09:54:32 -0700



    On 1/18/23 09:38, HECTOR INGERTO wrote:

    
        I wanted to understand the underlying
          issue.
         
        I use ZFS snapshots instead of a “correct”
          backup because with only two machines it allows me to have
          backups in the main machine and in the secondary too that acts
          as hotspare at the same time.
         
        To accomplish the same I would need 3
          nodes. The main, the replica hotspare and the proper backup.
      
    
    Isn't "proper backup" typically thought of as offsite reloadable
    file capture, hopefully relatively recent?  Disaster recovery, and
    all that.