From: Andreas Joseph Krogh <andreas@visena.com>
To: pgsql-performance@lists.postgresql.org
Subject: Sv: Latest advice on SSD?
Date: Tue, 10 Apr 2018 09:21:53 +0200 (CEST)
Message-ID: <VisenaEmail.c.d0d82e38c7187473.162ae6e010b@tc7-visena> (raw)
In-Reply-To: <CAFwQ8rcCSiD2jC1JXHEh4fjxjzP+M9gGnbBNHj_+rm=Ng2ea+A@mail.gmail.com>
På tirsdag 10. april 2018 kl. 04:36:27, skrev Craig James <cjames@emolecules.com
<mailto:cjames@emolecules.com>>:
One of our four "big iron" (spinning disks) servers went belly up today.
(Thanks, Postgres and pgbackrest! Easy recovery.) We're planning to move to a
cloud service at the end of the year, so bad timing on this. We didn't want to
buy any more hardware, but now it looks like we have to.
I followed the discussions about SSD drives when they were first becoming
mainstream; at that time, the Intel devices were king. Can anyone recommend
what's a good SSD configuration these days? I don't think we want to buy a new
server with spinning disks.
We're replacing:
8 core (Intel)
48GB memory
12-drive 7200 RPM 500GB
RAID1 (2 disks, OS and WAL log)
RAID10 (8 disks, postgres data dir)
2 spares
Ubuntu 16.04
Postgres 9.6
The current system peaks at about 7000 TPS from pgbench.
With what arguments (also initialization)?
--
Andreas Joseph Krogh
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Subject: Re: Sv: Latest advice on SSD?
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