> -----Ursprüngliche Nachricht-----
> Von: pgsql-general-owner@postgresql.org [mailto:pgsql-general-
> owner@postgresql.org] Im Auftrag von Moreno Andreo
> Gesendet: Mittwoch, 20. September 2017 17:42
> I may be wrong, as I don't know MS SQL Server, but in the way you describe it,
> you make me come in mind pg_basebackup().
A VSS writer just prepares a snapshot of the (virtual) machine while pg_basebackup make actually a (safe) copy of the
cluster- important differences are that VSS writer 1) is called by the operating system, 2) is much faster and 3) does
notneed space for a complete backup.
But you are right: if you can ensure that pg_basebackup has finished prior to making a backup of the virtual machine,
thisis certainly safe.
Klaus
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