Date: Mon, 29 Jun 2015 04:33:29 -0400 From: Quartz <quartz@sneakertech.com> To: Chris Stankevitz <chrisstankevitz@gmail.com> Cc: freebsd-questions <freebsd-questions@freebsd.org> Subject: Re: Corrupt GPT on ZFS full-disks that shouldn't be using GPT Message-ID: <559102D9.8060404@sneakertech.com> In-Reply-To: <CAPi0psv7io6dhqbNxm6gp%2BW1npmNoU1agF%2Bt=7aEteNmpzqJXQ@mail.gmail.com> References: <CAPi0psvpvO4Kpbietpzyx1TjyB20hWV%2BCK-y3bWG4OARE1VMSg@mail.gmail.com> <alpine.BSF.2.20.1506280019400.14091@wonkity.com> <CAPi0psv7io6dhqbNxm6gp%2BW1npmNoU1agF%2Bt=7aEteNmpzqJXQ@mail.gmail.com>
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>Do I need to export the pool before using dd on the > raw device? So I think my earlier comment saying export is overkill might have been wrong. The handbook page explaining how zfs checksums work has an example that explicitly uses export: [20.3.8. Self-Healing] "Data corruption is simulated by writing random data to the beginning of one of the disks in the mirror. To prevent ZFS from healing the data as soon as it is detected, the pool is exported before the corruption and imported again afterwards." https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/zfs-zpool.html
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