From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Shubert Subject: Re: RAID Class Drives` Date: Tue, 23 Mar 2010 10:45:24 -0700 Message-ID: References: <7c2a12e21003190943t546ade49u2294310ed7d9921e@mail.gmail.com> <38.31.05956.E4417AB4@cdptpa-omtalb.mail.rr.com> <4BA81827.7040606@wasp.net.au> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4BA81827.7040606@wasp.net.au> Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids Brad Campbell wrote: > Eric Shubert wrote: > >> I had a few drives running at about 55C for a couple years, with no >> failures (knock wood). These were used drives before being put into >> that environment, so they arguably had already survived the "infant >> mortality syndrome" that the google study identified. Would I >> recommend running drives at 55C? No, but I wouldn't be too concerned >> about it either. > > I know of at least one manufacturer who voids the warranty if the drive > exceeds 55 Degrees. Care to name names? (Inquiring minds want to know!) > I have a couple of drives here that have the > "Exceeded 55 degrees" mark permanently recorded in their SMART data now. > Having said that, I've not had issues with them yet (they only have > about 14,000 hours on them). > > I'd wager that extended running at elevated temperatures has the > potential to affect the bearing lubricant, but it's just an hunch. I've > never killed a drive from overtemp (and in a couple of cases I actually > tried). That would be my guess as well, although I'm sure that there are high temp lubes available. Just depends on what the mfr uses. -- -Eric 'shubes'