Date: Fri, 18 Jan 2013 20:37:20 +0100 (CET) From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> To: Scott Long <scott4long@yahoo.com> Cc: "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org>, Dieter BSD <dieterbsd@gmail.com>, "gibbs@FreeBSD.org" <gibbs@freebsd.org>, "scottl@FreeBSD.org" <scottl@freebsd.org>, "mjacob@FreeBSD.org" <mjacob@freebsd.org> Subject: Re: IBM blade server abysmal disk write performances Message-ID: <alpine.BSF.2.00.1301182035200.13066@wojtek.tensor.gdynia.pl> In-Reply-To: <1358533136.41693.YahooMailNeo@web120302.mail.ne1.yahoo.com> References: <CAA3ZYrCgMmGi3EHKEuXb=qWPjC2zSMYcfgZ6nh-ipqQ7dAeVdA@mail.gmail.com> <1358529778.71931.YahooMailNeo@web120304.mail.ne1.yahoo.com> <alpine.BSF.2.00.1301181909250.12638@wojtek.tensor.gdynia.pl> <1358533136.41693.YahooMailNeo@web120302.mail.ne1.yahoo.com>
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This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --2456600518-1385782499-1358537841=:13066 Content-Type: TEXT/PLAIN; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8BIT >> disk would write data >> > > I suspect that I'm encountering situations right now at netflix where this advice is not true. I have drives that are seeing intermittent errors, then being forced into reset after a timeout, and then coming back up with filesystem problems. It's only a suspicion at this point, not a confirmed case. true. I just assumed that anywhere it matters one would use gmirror. As for myself - i always prefer to put different manufacturers drives for gmirror or at least - not manufactured at similar time. 2 fails at the same moment is rather unlikely. Of course - everything is possible so i do proper backups to remote sites. Remote means another city. --2456600518-1385782499-1358537841=:13066--
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