From: Nix <nix@esperi.org.uk>
To: Reindl Harald <h.reindl@thelounge.net>
Cc: Wols Lists <antlists@youngman.org.uk>,
Gandalf Corvotempesta <gandalf.corvotempesta@gmail.com>,
Linux RAID Mailing List <linux-raid@vger.kernel.org>
Subject: Re: New setup: partitions or raw devices
Date: Sat, 02 Dec 2017 13:19:38 +0000 [thread overview]
Message-ID: <87po7xw9lh.fsf@esperi.org.uk> (raw)
In-Reply-To: <1d3830e8-9e5e-681c-d556-1b8b6524dda2@thelounge.net> (Reindl Harald's message of "Sat, 2 Dec 2017 00:44:33 +0100")
On 1 Dec 2017, Reindl Harald said:
> RAID5 has *zero* benefits against RAID10 except costs while RAID6 is
> terrible for performance and wear out of disks
You still haven't explained why RAID-6 wears out disks more than RAID-10
does.
RAID-5 has one huge benefit over RAID-10: more accessible storage for a
given number of disks, and, given that power is not free, that means
lower running costs as well, as well as lower noise, lower vibration,
lower maintenance costs (since having more disks does mean you have to
replace disks more often, even if the chance of losing data when one
fails is reduced by RAID).
If RAID-5 and RAID-6 had no benefits at all over RAID-10 it is unlikely
they would still be in wide use. They are, even for new installations,
because they truly do offer benefits for some use cases. They may not
for yours, but that doesn't mean they don't for anyone.
next prev parent reply other threads:[~2017-12-02 13:19 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-29 16:22 New setup: partitions or raw devices Gandalf Corvotempesta
2017-11-29 16:44 ` Reindl Harald
2017-11-29 16:52 ` Phil Turmel
2017-11-29 17:42 ` Gandalf Corvotempesta
2017-11-29 17:49 ` Phil Turmel
[not found] ` <CAJH6TXjFoUOCySnq2ErjTT9rb10XSc2saY=Q3RDheT7thOOFPg@mail.gmail.com>
[not found] ` <CAJH6TXhK5XgY-1v49oHcRXBugDMZ6QagKSa-deCA-Q7tPPLRyA@mail.gmail.com>
[not found] ` <CAJH6TXgbfgg_dk9oasVExn=RPVZqQDKN2AWAmPi1U2=PiACAHA@mail.gmail.com>
2017-11-29 19:54 ` Fwd: " Gandalf Corvotempesta
2017-11-29 22:10 ` Chris Murphy
2017-11-29 22:14 ` Gandalf Corvotempesta
2017-11-29 22:27 ` Chris Murphy
2017-11-29 22:14 ` Chris Murphy
2017-11-29 17:38 ` Gandalf Corvotempesta
2017-11-29 18:28 ` Reindl Harald
2017-11-29 19:51 ` Gandalf Corvotempesta
2017-11-29 20:02 ` Reindl Harald
2017-11-29 22:02 ` Gandalf Corvotempesta
2017-11-29 22:10 ` Reindl Harald
2017-11-29 22:25 ` Gandalf Corvotempesta
2017-11-29 22:34 ` Reindl Harald
2017-12-01 16:18 ` Nix
2017-12-02 13:01 ` Gandalf Corvotempesta
2017-11-29 22:20 ` Wol's lists
2017-11-29 22:27 ` Reindl Harald
2017-12-01 16:19 ` Nix
2017-12-01 16:27 ` Reindl Harald
2017-12-01 17:18 ` Wols Lists
2017-12-01 22:22 ` Nix
2017-12-01 23:44 ` Reindl Harald
2017-12-02 13:14 ` Gandalf Corvotempesta
2017-12-02 13:56 ` Reindl Harald
2017-12-02 17:12 ` Phil Turmel
2017-12-02 18:39 ` Reindl Harald
2017-12-02 13:19 ` Nix [this message]
2017-12-02 14:01 ` Reindl Harald
2017-12-02 20:35 ` Nix
2017-12-02 21:41 ` Reindl Harald
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