Date: Wed, 23 Apr 2014 09:21:47 -0500 From: Karl Denninger <karl@denninger.net> To: freebsd-fs@freebsd.org Subject: Re: ZFS unable to import pool Message-ID: <5357CC7B.2090003@denninger.net> In-Reply-To: <FC0D5991-8F8D-41D5-BB50-AB840C29F362@icloud.com> References: <B493BD80-CDC2-4BA6-AC14-AE16B373A051@icloud.com> <20140423064203.GD2830@sludge.elizium.za.net> <B1024D84-EBBE-4A9B-82C4-5C19B5A66B60@icloud.com> <20140423080056.GE2830@sludge.elizium.za.net> <20140423091852.GH2830@sludge.elizium.za.net> <20140423100126.GJ2830@sludge.elizium.za.net> <5357937D.4080302@gmail.com> <72E79259-3DB1-48B7-8E5E-19CC2145A464@icloud.com> <888649C4-CC66-48A6-9901-BEA93D1BBFA3@mail.turbofuzz.com> <FC0D5991-8F8D-41D5-BB50-AB840C29F362@icloud.com>
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This is a cryptographically signed message in MIME format. --------------ms030007010300090008070206 Content-Type: text/plain; charset=windows-1251; format=flowed Content-Transfer-Encoding: quoted-printable Probably not. You can try importing it read-only but if it refuses that then you're=20 screwed. The reason is that ZFS spreads data in a given file around and=20 as such it's likely that bits of various files are interspersed into the = missing device, so a huge percentage of the files on the volume are in=20 fact damaged and unusable. /*Filesystem based "redundancy" is not a backup strategy!*/ On 4/23/2014 9:19 AM, Gennadiy Gulchin wrote: > Any data can be salvaged? > > --Gena > >> On Apr 23, 2014, at 7:15 AM, Jordan Hubbard <jkh@mail.turbofuzz.com> w= rote: >> >> If you added a single disk to a pool, you have no choice but to destro= y the pool and start over. The single disk will essentially degrade the = performance of the whole pool, because it represents a unique (100Mb/sec,= typical) transaction group now, and if you lose that one disk you will a= lso lose the entire pool since it has no redundancy. >> >> This is a common mistake people make with ZFS, and it sucks, but block= pointer rewrite was never implemented so that=92s just the way it is, to= o. That=92s another reason for FreeBSD-based front-ends to ZFS like Free= NAS. The GUI adds some seat-belts to prevent users from trivially doing = things like that. On the command line, all bets are off. >> >> - Jordan >> >>> On Apr 23, 2014, at 7:09 PM, Gena Guchin <ggulchin@icloud.com> wrote:= >>> >>> Looking though the history, i DID add that disk ada7 (!) to the pool,= but I added it as a separate disk. I wanted to re-add the disk to the st= orage pool, but it added as a new disk=85 >>> this does help a lille.. >>> >>> >>> anything I can do now? >>> can I remove that vdev? > _______________________________________________ > freebsd-fs@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-fs > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org"=FD= #=C00=12=CE=08=AF=D2a/=CCj=D7!y=DF=FF~=B7=9En=C7=FF=A2=B8>=FF=F9=9E=B2=C6= > --=20 -- Karl karl@denninger.net --------------ms030007010300090008070206 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIFTzCC BUswggQzoAMCAQICAQgwDQYJKoZIhvcNAQEFBQAwgZ0xCzAJBgNVBAYTAlVTMRAwDgYDVQQI EwdGbG9yaWRhMRIwEAYDVQQHEwlOaWNldmlsbGUxGTAXBgNVBAoTEEN1ZGEgU3lzdGVtcyBM TEMxHDAaBgNVBAMTE0N1ZGEgU3lzdGVtcyBMTEMgQ0ExLzAtBgkqhkiG9w0BCQEWIGN1c3Rv bWVyLXNlcnZpY2VAY3VkYXN5c3RlbXMubmV0MB4XDTEzMDgyNDE5MDM0NFoXDTE4MDgyMzE5 MDM0NFowWzELMAkGA1UEBhMCVVMxEDAOBgNVBAgTB0Zsb3JpZGExFzAVBgNVBAMTDkthcmwg RGVubmluZ2VyMSEwHwYJKoZIhvcNAQkBFhJrYXJsQGRlbm5pbmdlci5uZXQwggIiMA0GCSqG SIb3DQEBAQUAA4ICDwAwggIKAoICAQC5n2KBrBmG22nVntVdvgKCB9UcnapNThrW1L+dq6th d9l4mj+qYMUpJ+8I0rTbY1dn21IXQBoBQmy8t1doKwmTdQ59F0FwZEPt/fGbRgBKVt3Quf6W 6n7kRk9MG6gdD7V9vPpFV41e+5MWYtqGWY3ScDP8SyYLjL/Xgr+5KFKkDfuubK8DeNqdLniV jHo/vqmIgO+6NgzPGPgmbutzFQXlxUqjiNAAKzF2+Tkddi+WKABrcc/EqnBb0X8GdqcIamO5 SyVmuM+7Zdns7D9pcV16zMMQ8LfNFQCDvbCuuQKMDg2F22x5ekYXpwjqTyfjcHBkWC8vFNoY 5aFMdyiN/Kkz0/kduP2ekYOgkRqcShfLEcG9SQ4LQZgqjMpTjSOGzBr3tOvVn5LkSJSHW2Z8 Q0dxSkvFG2/lsOWFbwQeeZSaBi5vRZCYCOf5tRd1+E93FyQfpt4vsrXshIAk7IK7f0qXvxP4 GDli5PKIEubD2Bn+gp3vB/DkfKySh5NBHVB+OPCoXRUWBkQxme65wBO02OZZt0k8Iq0i4Rci WV6z+lQHqDKtaVGgMsHn6PoeYhjf5Al5SP+U3imTjF2aCca1iDB5JOccX04MNljvifXgcbJN nkMgrzmm1ZgJ1PLur/ADWPlnz45quOhHg1TfUCLfI/DzgG7Z6u+oy4siQuFr9QT0MQIDAQAB o4HWMIHTMAkGA1UdEwQCMAAwEQYJYIZIAYb4QgEBBAQDAgWgMAsGA1UdDwQEAwIF4DAsBglg hkgBhvhCAQ0EHxYdT3BlblNTTCBHZW5lcmF0ZWQgQ2VydGlmaWNhdGUwHQYDVR0OBBYEFHw4 +LnuALyLA5Cgy7T5ZAX1WzKPMB8GA1UdIwQYMBaAFF3U3hpBZq40HB5VM7B44/gmXiI0MDgG CWCGSAGG+EIBAwQrFilodHRwczovL2N1ZGFzeXN0ZW1zLm5ldDoxMTQ0My9yZXZva2VkLmNy bDANBgkqhkiG9w0BAQUFAAOCAQEAZ0L4tQbBd0hd4wuw/YVqEBDDXJ54q2AoqQAmsOlnoxLO 31ehM/LvrTIP4yK2u1VmXtUumQ4Ao15JFM+xmwqtEGsh70RRrfVBAGd7KOZ3GB39FP2TgN/c L5fJKVxOqvEnW6cL9QtvUlcM3hXg8kDv60OB+LIcSE/P3/s+0tEpWPjxm3LHVE7JmPbZIcJ1 YMoZvHh0NSjY5D0HZlwtbDO7pDz9sZf1QEOgjH828fhtborkaHaUI46pmrMjiBnY6ujXMcWD pxtikki0zY22nrxfTs5xDWGxyrc/cmucjxClJF6+OYVUSaZhiiHfa9Pr+41okLgsRB0AmNwE f6ItY3TI8DGCBQowggUGAgEBMIGjMIGdMQswCQYDVQQGEwJVUzEQMA4GA1UECBMHRmxvcmlk YTESMBAGA1UEBxMJTmljZXZpbGxlMRkwFwYDVQQKExBDdWRhIFN5c3RlbXMgTExDMRwwGgYD VQQDExNDdWRhIFN5c3RlbXMgTExDIENBMS8wLQYJKoZIhvcNAQkBFiBjdXN0b21lci1zZXJ2 aWNlQGN1ZGFzeXN0ZW1zLm5ldAIBCDAJBgUrDgMCGgUAoIICOzAYBgkqhkiG9w0BCQMxCwYJ KoZIhvcNAQcBMBwGCSqGSIb3DQEJBTEPFw0xNDA0MjMxNDIxNDdaMCMGCSqGSIb3DQEJBDEW BBSxvFc+L/WLIJdGijcz2bP2yWZPNTBsBgkqhkiG9w0BCQ8xXzBdMAsGCWCGSAFlAwQBKjAL BglghkgBZQMEAQIwCgYIKoZIhvcNAwcwDgYIKoZIhvcNAwICAgCAMA0GCCqGSIb3DQMCAgFA MAcGBSsOAwIHMA0GCCqGSIb3DQMCAgEoMIG0BgkrBgEEAYI3EAQxgaYwgaMwgZ0xCzAJBgNV BAYTAlVTMRAwDgYDVQQIEwdGbG9yaWRhMRIwEAYDVQQHEwlOaWNldmlsbGUxGTAXBgNVBAoT EEN1ZGEgU3lzdGVtcyBMTEMxHDAaBgNVBAMTE0N1ZGEgU3lzdGVtcyBMTEMgQ0ExLzAtBgkq hkiG9w0BCQEWIGN1c3RvbWVyLXNlcnZpY2VAY3VkYXN5c3RlbXMubmV0AgEIMIG2BgsqhkiG 9w0BCRACCzGBpqCBozCBnTELMAkGA1UEBhMCVVMxEDAOBgNVBAgTB0Zsb3JpZGExEjAQBgNV BAcTCU5pY2V2aWxsZTEZMBcGA1UEChMQQ3VkYSBTeXN0ZW1zIExMQzEcMBoGA1UEAxMTQ3Vk YSBTeXN0ZW1zIExMQyBDQTEvMC0GCSqGSIb3DQEJARYgY3VzdG9tZXItc2VydmljZUBjdWRh c3lzdGVtcy5uZXQCAQgwDQYJKoZIhvcNAQEBBQAEggIAAvJng/1F0vR/33JErBZqgI+mthDc ZLBcOKhJp7gFceH9+uJ4GRD0Ni4YRrdtruZpO13bH4uPBKclDisneLqxOEJrQDPmmfM881v9 g7lPEbPL1qVKqFyP1gKs6lhw3Cgdr9R8kgh3SiOiFmn0YwYJDMOIpLNfokOpB4zfd3d5d2yA t+ZUckcLrVR/WgNB6L+6vEsWtfvF2GSwzwl7tjAar48vdQU4iI6+9yYGXPb+YhdsoB/eD9Mb BygjWSbAknt9UhnVVjIjRuHBxx9Vv9hD9s81xkoxGD6CbCSqWWOq++UVoEFVivAh2XQg2cYy ifEXPi4TQBxUCLmJZL70sv9mQsc52k3Dor5CaR3UgIq1Ss0hkc8iff0e3kP8zE17aclJx+UJ g+NClhDzerNM85GBcKDsHdCBoHeNp5XPHMwKSmC4TyolzPIfK6I74LHF8WgzKK2PPg6gpOc1 3EP+sYSCXW8qynHhW2X/ylh26+4IE1ogOdqnH8FvgQ8I3XviHcvPBh4VkyoodpqOhfz5afPF qdAbiw2BHRJH/Rur+beooa5xY5hYRZ8xrtXafeOSETvGNfIerL+FWGURKRYyHROocaJGQlBv k1qHwKe7Ofv6w9ZMuFenf5qo1wJievlxHBJ9jrsnsHVMWz7RwsX8jCa1FS1j0rB46c+OJinp 9MGL08MAAAAAAAA= --------------ms030007010300090008070206--
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