From mboxrd@z Thu Jan 1 00:00:00 1970 From: Roman Mamedov Subject: Re: Recovery on new 2TB disk: finish=7248.4min (raid1) Date: Tue, 2 May 2017 03:03:07 +0500 Message-ID: <20170502030307.4d7a77dd@natsu> References: <590117CD.1000009@tesco.net> <22785.65375.947842.648174@quad.stoffel.home> <5492628.c8B43Z4h0G@matkor-lenovo> <22786.16524.435313.304834@quad.stoffel.home> <87o9veje3v.fsf@esperi.org.uk> <20170430182134.0e8c6dc0@natsu> <87fugpkhap.fsf@esperi.org.uk> <20170430214729.2a02cce5@natsu> <8737cojn54.fsf@esperi.org.uk> <20170502024657.6d33fd88@natsu> <6398208a-1345-bdec-4be6-a8bd98bfb089@youngman.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <6398208a-1345-bdec-4be6-a8bd98bfb089@youngman.org.uk> Sender: linux-raid-owner@vger.kernel.org To: Anthony Youngman Cc: Nix , John Stoffel , Mateusz Korniak , Ron Leach , linux-raid@vger.kernel.org List-Id: linux-raid.ids On Mon, 1 May 2017 22:53:14 +0100 Anthony Youngman wrote: > That's what I understood you to mean, but you are aware that SOME raid > management still has to be done with echo > /sys/... ? > > So mdadm isn't perfect, not by a long chalk, yet :-) Well, why not post some examples of what you find yourself doing often via /sys, that's not available in mdadm (maybe as a new thread). One that I remember is the "want_replacement" mechanism, which was initially only available via "echo > /sys/..." but quickly got added to mdadm as "--replace". People (and various outdated wikis) also tend to suggest using "echo check..." or "echo repair...", but those are available in mdadm as well, via "--action=". Lastly, I change the "stripe_cache_size" via /sys/, but that's fine-tuning, which feels OK to do via sysfs parameters, whereas needing to use sysfs for the most basic operations of managing the storage system does not. -- With respect, Roman