From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wols Lists Subject: Re: New setup: partitions or raw devices Date: Fri, 1 Dec 2017 17:18:19 +0000 Message-ID: <5A218EDB.6030909@youngman.org.uk> References: <7f6abcbc-7dfa-0252-e9df-984e7e637936@thelounge.net> <3654cb70-9d7c-dfc0-f57d-c57004f11f92@thelounge.net> <253c22a2-8f77-2737-b3b4-6beef107c28c@youngman.org.uk> <14078b47-29dd-6c07-f680-77ac9445be32@thelounge.net> <87tvxazahs.fsf@esperi.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: Reindl Harald , Nix Cc: Gandalf Corvotempesta , Linux RAID Mailing List List-Id: linux-raid.ids On 01/12/17 16:27, Reindl Harald wrote: > > > Am 01.12.2017 um 17:19 schrieb Nix: >> That's not actually answering the question that was asked, y'know. If >> you're against RAID 5 because the parity writes wear the drives out, you >> should be much more strongly against RAID 10 for the same reason > > RAID10 is simple mirroring of stripes > And? The more I think about it, the more I come to the conclusion that raid-10 is a bad idea for (a) minimising writes (and wear), and (b) for safeguarding your data. Yes it does have advantages, and yes I plan to put a raid-10 array on my new system, but if reducing wear or protecting data are your priorities, raid-10 is the wrong choice. Cheers, Wol