From mboxrd@z Thu Jan 1 00:00:00 1970 From: Miles Fidelman Subject: Re: 3TB drives failure rate Date: Sun, 28 Oct 2012 18:24:13 -0400 Message-ID: <508DB08D.20002@meetinghouse.net> References: <11510711257.20121028131527@oudeis.org> <508D61A1.7020106@wildgooses.com> <508D65CF.1080904@gmail.com> <508DADC3.4080104@shiftmail.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <508DADC3.4080104@shiftmail.org> Sender: linux-raid-owner@vger.kernel.org Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids joystick wrote: > > This thing of "drives falling out of RAID" I have heard many times, > but really don't know what people are talking about. > How could a drive fall out of a RAID? A RAID is nothing special, it's > just read/write commands given to a drive by a process called MD. > If the drive drops out of RAID it means it would have dropped out of a > normal computer doing normal I/O > Please explain The RAID erroneously thinks that a drive has failed, and drops it from the array. -- In theory, there is no difference between theory and practice. In practice, there is. .... Yogi Berra