From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christer Solskogen Subject: Re: Optimal chunk size for RAID5? Date: Sun, 22 Feb 2015 13:46:19 +0100 Message-ID: References: <20150222173047.1ea65d67@natsu> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20150222173047.1ea65d67@natsu> Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids On 22.02.2015 13:30, Roman Mamedov wrote: > On Sun, 22 Feb 2015 12:31:23 +0100 > Christer Solskogen wrote: > >> There are so many different views on the internet > > ...and yet you're asking for some more? :) > Heh, yes. I see the irony in that :-) But this is pretty much as the source as you can get. >> Is there even such a thing as optimal chunk size? > > 64K should be fine: > http://louwrentius.com/linux-raid-level-and-chunk-size-the-benchmarks.html > Okay, even if this is almost 5 years old, it is still applicable? The disks I have are 4k sectors. Is there anything special I need to think about or is this handled automagicly these days? (I run a pretty fresh distro) -- chs