Date: Thu, 25 Oct 2018 16:23:50 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 232683] [gmirror] gmirror could provide much better administrative introspection into decision-making processes Message-ID: <bug-232683-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D232683 Bug ID: 232683 Summary: [gmirror] gmirror could provide much better administrative introspection into decision-making processes Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: cem@freebsd.org CC: geom@FreeBSD.org, markj@FreeBSD.org Depends on: 232671 +++ This bug was initially created as a clone of Bug #232671 +++ I'd like the gmirror softc and individual gmirror disk elements to record t= wo formatted messages: 1. Why did we switch to the current state from the previous one? 2. Why *haven't* we switched to some next state, where there is an obvious linear sequence of transitions. Additionally, I'd like that information available in DDB and perhaps the runtime geom commands. It may also be useful for printing at mountroot pan= ics. For the scenario described in the bug this was cloned from, that might be: root0.why_status =3D "Found enough (2/2) disks in ANY state and found 0 dir= ty disks (unforced)" root0.why_not_next =3D "n/a" root0.why_destroy =3D "0/2 mirror disks in ACTIVE or NEW state (need at lea= st 1)" da2p5.why_status =3D "broken (stale): old generation id N; current mirrorset generation is M" da2p5.why_not_next =3D "n/a" da16p3.why_status =3D "Synchronizing: Part of active mirrorset generation (= NN), but initiated synchronization operation has not completed" da16p3.why_not_next =3D "Synchronizing: progress: N/M bytes; last forward progress at time TTTT" In that scenario, da15p3 never made it in time for the mirror to still exis= t, but if it had: da15p3.why_status =3D "Clean mirror with active mirrorset generation (NN)" da15p3.why_not_next =3D "n/a" Referenced Bugs: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D232671 [Bug 232671] [gmirror] gmirror fails to recover from degraded mirror sets in some circumstances --=20 You are receiving this mail because: You are the assignee for the bug.=
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