Date: Fri, 23 Apr 2010 11:09:01 +1000 From: David N <davidn04@gmail.com> To: Andrew Reilly <areilly@bigpond.net.au> Cc: freebsd-fs@freebsd.org Subject: Re: gjournal: what is it good for? Message-ID: <h2k4d7dd86f1004221809j3ba26e2bz31df2df196a9394b@mail.gmail.com> In-Reply-To: <o2p4d7dd86f1004210447p5c312f43v63d241bfa59862fd@mail.gmail.com> References: <20100418235428.GC4620@duncan.reilly.home> <20100420234447.GB1737@garage.freebsd.pl> <20100421011834.GA24928@duncan.reilly.home> <k2q4d7dd86f1004201920s2139647aja783e86e266153ca@mail.gmail.com> <20100421024803.GA25701@duncan.reilly.home> <r2q4d7dd86f1004210105o1ab574b7g350822e9bed99b82@mail.gmail.com> <20100421085228.GA27892@duncan.reilly.home> <g2u4d7dd86f1004210216wa8dc9ed1i44776068add4c530@mail.gmail.com> <20100421095054.GA28619@duncan.reilly.home> <o2p4d7dd86f1004210447p5c312f43v63d241bfa59862fd@mail.gmail.com>
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On 21 April 2010 21:47, David N <davidn04@gmail.com> wrote: > On 21 April 2010 19:50, Andrew Reilly <areilly@bigpond.net.au> wrote: >> Hi David, >> >> On Wed, Apr 21, 2010 at 07:16:08PM +1000, David N wrote: >>> Can you show me a print out of >>> gjournal list >> >> here: >> >> >> Geom name: gjournal 827322917 >> ID: 827322917 >> Providers: >> 1. Name: mirror/gm0e.journal >> Mediasize: 981949479936 (915G) >> Sectorsize: 512 >> Mode: r1w1e1 >> Consumers: >> 1. Name: mirror/gm0e >> Mediasize: 983023222272 (916G) >> Sectorsize: 512 >> Mode: r1w1e1 >> Jend: 983023221760 >> Jstart: 981949479936 >> Role: Data,Journal >> >> Geom name: gjournal 1843456033 >> ID: 1843456033 >> Providers: >> 1. Name: ad8s1a.journal >> Mediasize: 1499228127232 (1.4T) >> Sectorsize: 512 >> Mode: r1w1e1 >> Consumers: >> 1. Name: ad8s1a >> Mediasize: 1500301869568 (1.4T) >> Sectorsize: 512 >> Mode: r1w1e1 >> Jend: 1500301869056 >> Jstart: 1499228127232 >> Role: Data,Journal >> >> Geom name: gjournal 3015273731 >> ID: 3015273731 >> Providers: >> 1. Name: ad10s1.journal >> Mediasize: 749081051136 (698G) >> Sectorsize: 512 >> Mode: r1w1e1 >> Consumers: >> 1. Name: ad10s1 >> Mediasize: 750154793472 (699G) >> Sectorsize: 512 >> Mode: r1w1e1 >> Jend: 750154792960 >> Jstart: 749081051136 >> Role: Data,Journal >> >> >>> and >>> bsdlabel /dev/mirror/gm0e.journal >> >> duncan [201]$ bsdlabel mirror/gm0e.journal >> bsdlabel: /dev/mirror/gm0e.journal: no valid label found >> >>> And any other .journal you have >> >> duncan [202]$ bsdlabel ad8s1a.journal >> bsdlabel: /dev/ad8s1a.journal: no valid label found >> duncan [203]$ bsdlabel ad10s1.journal >> # /dev/ad10s1.journal: >> 8 partitions: >> # size offset fstype [fsize bsize bps/cpg] >> a: 1465146065 16 unused 0 0 >> c: 1465146081 0 unused 0 0 # "raw" part, don't edit >> partition a: partition extends past end of unit >> partition c: partition extends past end of unit >> bsdlabel: partition c doesn't cover the whole unit! >> bsdlabel: An incorrect partition c may cause problems for standard system utilities >> >> Hmm. That's a bit surprising. I'm fairly certain that I didn't >> label ad10s1.journal, but that disk has been used for other >> things before, and the partition label is the the same (but >> without the warnings): >> >> duncan [204]$ bsdlabel ad10s1 >> # /dev/ad10s1: >> 8 partitions: >> # size offset fstype [fsize bsize bps/cpg] >> a: 1465146065 16 unused 0 0 >> c: 1465146081 0 unused 0 0 # "raw" part, don't edit >> >> I guess I should have nuked the starting sectors a bit more >> thoroughly? >> >> That isn't the disk that's giving me panics though. >> >>> Just want to double check something. >> >> Hope that helps! >> >> Cheers, >> >> -- >> Andrew >> >> > > Sorry, i forgot the gm0e and ad8s1a is a label. > can you show me the bsdlabel for the mirror/gm0 and ad8s1 > > Also there is a overflow with the ad10s1 and journal > > Geom name: gjournal 3015273731 > ID: 3015273731 > Providers: > 1. Name: ad10s1.journal > Mediasize: 749081051136 (698G) > Sectorsize: 512 > Mode: r1w1e1 > Consumers: > 1. Name: ad10s1 > Mediasize: 750154793472 (699G) > Sectorsize: 512 > Mode: r1w1e1 > Jend: 750154792960 > Jstart: 749081051136 > Role: Data,Journal > > duncan [204]$ bsdlabel ad10s1 > # /dev/ad10s1: > 8 partitions: > # size offset fstype [fsize bsize bps/cpg] > a: 1465146065 16 unused 0 0 > c: 1465146081 0 unused 0 0 # "raw" part, > don't edit > partition a: partition extends past end of unit > partition c: partition extends past end of unit > bsdlabel: partition c doesn't cover the whole unit! > bsdlabel: An incorrect partition c may cause problems for standard > system utilities > > When i first started, it kept complaining. For slices, you have the > ad10, put the s1 slice in, then you gjournal that, bsdlabel the > .journal. Then change the label to the mediasize of the journal/512. > > So in your case your bsdlabel should be 749081051136 / 512 = > 1463048928 with offset of 0. > c: 1465146081 - (what is expected)1463048928 = 2097153*512 = > 1073742336 (which is roughly 1GB, your journal size) > Your c label is over by about 1GB which means the fs is writing over > the journal part sometimes and the journal writing over the data > sometimes, which would lead to the journal overflow and journal/data > corruption. > > I hope i haven't confused you. I started to gjournal the slices as > gjournalling the bsdlabels you needed to decrease your bsdlabel by 1 > (thats where the GEOM data was stored) and gave me too many headaches. > > If you gjournal the slices, then bsdlabel them, you just change the c > label to (.journal media size)/512 offset 0, and it all works. > > Regards > David N > Could you also post a df (without the -h), if you haven't already solved the problem. Cheers David N
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