Date: Tue, 10 Jan 2017 23:47:35 -0500 From: Paul Kraus <paul@kraus-haus.org> To: Christoph Pomaska <cp_public@gmx.de> Cc: freebsd-fs@freebsd.org Subject: Re: Stupidly destroyed a ZFS pool by recreating with the same name Message-ID: <2DA7964C-2481-4233-8BE4-6C0428A24B19@kraus-haus.org> In-Reply-To: <4d186184-c118-84db-4a53-d027eaa32d89@gmx.de> References: <4d186184-c118-84db-4a53-d027eaa32d89@gmx.de>
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> On Jan 7, 2017, at 7:12 AM, Christoph Pomaska <cp_public@gmx.de> = wrote: >=20 > I not-so-recently set up a ZFS data pool on my Arch Linux setup, = either for experimenting and also because I think that the concept is a = pretty cool thing. > Well, as you can read in the subject title, I recently accidentally = recreated the ZFS pool that died, because I switched some drives out, = instead of importing it (as not stupidly enough, I did it with the = option -f, that's why it didn't ask me anything though). What were all of the steps you went through ? Be as exact as possible. What was the configuration of the pool (mirror, raidz2, how many top = level vdevs) ? > So, is there ANY way to get the original pool or at least ANYTHING = back? If there was data redundancy AND you did not overwrite ALL the copies of = the data, then you should still be able to import the remaining good = parts of the pool, perhaps on a completely different system to keep it = from getting confused. And note that when you import you can change the name of the pool at = that time to avoid name space conflicts. Also note that you should never use -f (or kill -9) as the FIRST attempt = at anything. Please be patient as I am about to leave town for a week, so I amy not = respond back for a while. If the data was critical, put all the drives = involved that were not overwritten in a safe place until you have a good = idea how to get the data back.=
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