From: | "Klaus P(dot) Pieper" <kpi6288(at)gmail(dot)com> |
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To: | <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: [SPAM] Re: VM-Ware Backup of VM safe? |
Date: | 2017-09-20 18:41:57 |
Message-ID: | 00d801d33240$23c69930$6b53cb90$@gmail.com |
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Lists: | pgsql-general |
> -----Ursprüngliche Nachricht-----
> Von: pgsql-general-owner(at)postgresql(dot)org [mailto:pgsql-general-
> owner(at)postgresql(dot)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 not need 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, this is certainly safe.
Klaus
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