Date: Tue, 15 Oct 2013 14:22:31 +0200 From: CeDeROM <cederom@tlen.pl> To: Daniel Feenberg <feenberg@nber.org> Cc: Polytropon <freebsd@edvax.de>, FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: SU+J Lost files after a power failure Message-ID: <CAFYkXjmrCwoudev8=2Lgpcv0y3XZsOawUvfpMmFFkF5_Egk%2B5w@mail.gmail.com> In-Reply-To: <alpine.LRH.2.03.1310150742370.29524@nber.org> References: <525A6831.5070402@gmail.com> <l3gc7e$c91$1@ger.gmane.org> <20131014133953.58f74659@gumby.homeunix.com> <525C1D1C.9050708@gmail.com> <CA%2BtpaK2Pr2po2cQ1yanQK9%2BwLp77SYqYHjxiXaU5FfXwHrkGow@mail.gmail.com> <CAFYkXjn-1wTJcQ4a_fyXCvwh9ukt3%2BdjM2qsMeaH1HhVJNvhiA@mail.gmail.com> <525C2554.7080203@pchotshots.com> <CAFYkXjm8y0Br31_pqRZc0sNFbqCNtKHhjeQuiLXkGT2zxSu0GA@mail.gmail.com> <525C2FBC.4080808@cran.org.uk> <alpine.LRH.2.03.1310141447520.16969@nber.org> <2351E8C5-4FC0-4AE9-AC21-312DA46C0EE8@mac.com> <20131015073048.83d7bca4.freebsd@edvax.de> <alpine.LRH.2.03.1310150742370.29524@nber.org>
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On Tue, Oct 15, 2013 at 1:47 PM, Daniel Feenberg <feenberg@nber.org> wrote: > We have a disk-to-disk backup that runs continuously. I have found that if I > unmount the backup disk and remove it without delay, then sometimes it > requires an fsck to remount. So I believe that umount does not wait for all > writes to complete. This can be observed on USB Mass Storage devices that blink activity some time even after umount completes...? :-) -- CeDeROM, SQ7MHZ, http://www.tomek.cedro.info
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