Date: Tue, 22 Mar 2016 21:49:19 -0600 From: Brett Glass <brett@lariat.net> To: bob prohaska <fbsd@www.zefox.net>, Warner Losh <imp@bsdimp.com> Cc: freebsd-arm@freebsd.org Subject: Re: Effect of partitioning on wear-leveling Message-ID: <201603230349.VAA20311@mail.lariat.net> In-Reply-To: <20160322033417.GD83908@www.zefox.net> References: <20160321175952.GA83908@www.zefox.net> <1458586884.68920.96.camel@freebsd.org> <20160321221153.GB83908@www.zefox.net> <1458600070.68920.107.camel@freebsd.org> <1973487B-0AA7-468D-A9CC-319FBE2122F0@netgate.com> <CANCZdfrCWXAswe02Qd3tTiDL8O_4TGEWbhFqgft4Q9aKj7ixvg@mail.gmail.com> <20160322033417.GD83908@www.zefox.net>
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At 09:34 PM 3/21/2016, bob prohaska wrote: >How do modern flash devices report end of life? Do problems show up in error >logs, or does the device simply refuse to work with no warning? Depends upon the device. SSDs will give you a warning via SMART; they will begin to retire blocks and swap in reserved blocks. Simpler devices such as memory cards and USB sticks will simply die. I use SSDs in mission-critical applications, so that I have at least a fighting chance of replacing them before there's an outage. --Brett Glass
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