pg.ddx.io  pgsql-performance@postgresql.org mailing list archive  

help / color / mirror / Atom feed
From: Stephen Frost <sfrost@snowman.net>
To: Torsten Zuehlsdorff <mailinglists@toco-domains.de>
Cc: Vladimir Borodin <root@simply.name>
Cc: Pavel Stehule <pavel.stehule@gmail.com>
Cc: Dinesh Chandra 12108 <Dinesh.Chandra@cyient.com>
Cc: Madusudanan.B.N <b.n.madusudanan@gmail.com>
Cc: pgsql-performance@postgresql.org <pgsql-performance@postgresql.org>
Subject: Re: Backup taking long time !!!
Date: Mon, 23 Jan 2017 12:20:54 -0500
Message-ID: <20170123172054.GF18360@tamriel.snowman.net> (raw)
In-Reply-To: <c22085f2-b218-5270-1ca9-9288313049ff@toco-domains.de>
References: <CA+_K-Dw=_reBqdkM5EyghgR21eB7uDCKxTd7_Yh9jQ610-5gTg@mail.gmail.com>
	<23dc5b1ea9604ec3afdaabdd15491085@cyient.com>
	<CAFj8pRAHx-Wt4fyJmF=YH-F2_S=mO2E+=JDx+qnunkDP5_FPGA@mail.gmail.com>
	<b0748fe40949446283068a4d2d06c158@cyient.com>
	<CAFj8pRBFDh=hsghE8v5F71KztyczR7iWBXGJBOLLhUQDwUh8MQ@mail.gmail.com>
	<20170120122224.GF18360@tamriel.snowman.net>
	<DE553F58-646E-49E8-94D1-31794C3E9040@simply.name>
	<20170120134054.GH18360@tamriel.snowman.net>
	<7696A57C-C871-4A45-9141-FFD5F75CCB65@simply.name>
	<c22085f2-b218-5270-1ca9-9288313049ff@toco-domains.de>
List-Unsubscribe:  <mailto:majordomo@postgresql.org?body=unsub%20pgsql-performance>

Greetings,

* Torsten Zuehlsdorff (mailinglists@toco-domains.de) wrote:
> I just have around 11 TB but switched to ZFS based backups only. I'm
> using snapshots therefore which gives some flexibility. I can
> rolback them, i can just clone it and work with a full copy as a
> different cluster (and just the differences are stored) and i can
> send them incrementally to other servers. This is very fine for my
> use cases but it doesn't fit everything of course.

While that's another approach, it does require that those snapshots are
performed correctly (both by you and by ZFS) and are entirely atomic to
the entire PG instance.

For example, I don't believe ZFS snapshots will be atomic if multiple
ZFS filesystems on independent ZFS pools are being used underneath a
single PG instance.

And, as others have also said, always test, test, test.

Thanks!

Stephen

Attachments:

  signature.asc (application/pgp-signature, 818B) download

view thread (42+ messages)  latest in thread

Message-ID: <20170123172054.GF18360@tamriel.snowman.net>
Permalink:  ../20170123172054.GF18360@tamriel.snowman.net/
Also on:    postgresql.org/message-id/20170123172054.GF18360@tamriel.snowman.net

 · 

reply
Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: pgsql-performance@postgresql.org
  Cc: sfrost@snowman.net, mailinglists@toco-domains.de, root@simply.name, pavel.stehule@gmail.com, Dinesh.Chandra@cyient.com, b.n.madusudanan@gmail.com
  Subject: Re: Backup taking long time !!!
  In-Reply-To: <20170123172054.GF18360@tamriel.snowman.net>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox