From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ram Ramesh Subject: Re: How important is SCTERC? Date: Fri, 28 Apr 2017 08:18:19 -0500 Message-ID: <0c63781c-34e9-899a-8771-2c828a3a44f3@gmail.com> References: <48135126-cd8e-6321-77e6-06ae349ecc03@gmail.com> <82b6880d-539b-81a9-08ef-1a5bc3d9752e@turmel.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <82b6880d-539b-81a9-08ef-1a5bc3d9752e@turmel.org> Sender: linux-raid-owner@vger.kernel.org To: Phil Turmel , Linux Raid List-Id: linux-raid.ids On 04/28/2017 07:18 AM, Phil Turmel wrote: > On 04/27/2017 11:35 PM, Ram Ramesh wrote: >> Experts, >> >> I ordered a couple of 6TB drives from goHarddrive that claimed to be NAS >> suitable, but SMART shows that they do not support >> scterc. I want to replace two of my 3TB drives with these in mdadm >> raid6. I can get a replacement or return, but want to avoid the hassle, >> if I am not seious danger. > Depends on "serious". I would return for exchange with proper NAS > drives. And report the vendor for false advertising. > >> I do run tler.sh that sets 180s timeout for drives that do not have >> scterc from /etc/rc.local. Am I putting my data in serious danger? I >> only have videos and tv recordings in this md which can be replaced with >> significant effort (about 12TB of movies and tv shows will take some >> time to copy from my DVDs/BDs) > The 180-second timeout is a band-aid, not a solution. Keep in mind that > your array will appear to be frozen for up to three minutes any time you > have a URE. That will have application side-effects and especially > consequences from impatient users. > > Phil I am quite unhappy with the vendor and wanted to make sure that I am not overreacting. Thanks. I have started the return process. Hopefully, that is all there is to it. Ramesh