Date: Fri, 28 Apr 2006 17:02:47 +1000 (EST) From: yance@exemail.com.au To: freebsd-geom@freebsd.org Subject: Re: failure replacing fail hard disk Message-ID: <56352.61.88.127.146.1146207767.squirrel@webmail.exetel.com.au>
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> On Thu, Apr 27, 2006 at 09:33:36PM +1000, yance@exemail.com.au wrote: +> > On Thu, Apr 27, 2006 at 03:04:35PM +1000, yance@exemail.com.au wrote: +> > +> Hi all, > +> > +> > +> > +> I setup geom on FreeBSD following this article > +> > +> http://www.onlamp.com/pub/a/bsd/2005/11/10/FreeBSD_Basics.html +> > +> > +> > +> With two 80 GB seagate HDD - the primary master is ad0 and secondary > +> > +> master is ad2 > +> > +> > +> > +> So: > +> > +> #gmirror label -v -b round-robin gm0 /dev/ad0 > +> > +> . > +> > +> .reboot > +> > +> . > +> > +> #gmirror insert gm0 /dev/ad2 > +> > +> > +> > +> However, when I put ad2 as ad0 and put a fresh HDD as ad2, GEOM failed > +> > to > +> > +> load. > +> > > +> > You wait for synchronization process to finish, right? > +> > > +> > +> I did run "gmirror forget gm0" command before shutting down and +> > replacing > +> > +> the HDD. > +> > > +> > 'forget' command is when the disk you want to replace is > disconnected. > +> > Could you increase debug level to 1 (kern.geom.mirror.debug) and send me > +> > the output from the console? > +> > > +> > -- > +> > Pawel Jakub Dawidek http://www.wheel.pl +> > pjd@FreeBSD.org http://www.FreeBSD.org +> > FreeBSD committer Am I Evil? Yes, I Am! +> > > +> > +> Hi Pawel, > +> > +> This is the correct debug message. > > Everything looks fine. So can you describe "GEOM failed to load" more precisely and send me the same debug from when it happens? > > -- > Pawel Jakub Dawidek http://www.wheel.pl > pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! Hi Pawel, Maybe I did the wrong way when I tried to simulate a failed hard disk. Following was what I did: 0. GEOM is installed, rebooted, synchronised 1. Assume (pretend) ad0 crashed. 2. gmirror forget ad0 -> maybe I should not do this since it's still connected 3. I shutdown the PC 4. Remove ad0 5. Replace ad0 with ad2 - now ad2 is ad0, i.e. connected to the primary master channel 5. Put a fresh hdd as ad2 - secondary master. 6. Boot the PC 7. The following message appear: Mounting root from ufs:/dev/gm0s1a . . . Manual root filesystem specification: <fstype>:<device> Mount <device> using filesystem <fstype> e.g. ufs:da0s1a ? List valid disk boot devices <empty line> Abort manual input mountroot> 8. mountroot>ufs:/dev/ad0s1a 9. The PC booted normally To be clear: there is no message stating GEOM fail to load, I am sorry for the misleading info. dmesg of FreeBSD 5.3 GEOM_MIRROR: Device gm0 created (id=2125638583). GEOM_MIRROR: Device gm0: provider ad0 detected. GEOM_MIRROR: Device gm0: provider ad0 activated. GEOM_MIRROR: Device gm0: provider mirror/gm0 launched. GEOM_MIRROR: Device gm0 already configured. Mounting root from ufs:/dev/mirror/gm0s1a dmesg of FreeBSD 6.0-RELEASE ad0: 76318MB <Seagate ST3802110A 3.AAD> at ata0-master UDMA100 ad2: 76318MB <Seagate ST3802110A 3.AAD> at ata1-master UDMA100 GEOM_MIRROR: Device gm0 created (id=2885959259). GEOM_MIRROR: Device gm0: provider ad0 detected. GEOM_MIRROR: Device gm0: provider ad2 detected. Root mount waitingGEOM_MIRROR: Device gm0: provider ad2 activated. for: GMIRRORGEOM_MIRROR: Device gm0: provider ad0 activated. GEOM_MIRROR: Device gm0: provider mirror/gm0 launched. Trying to mount root from ufs:/dev/mirror/gm0s1a Notice the 6.0 dmesg, the last few lines looks bungled, and the last line says "Trying to mount root ..." Anything abnormal here? Kind regards, Yance p/s: I am sorry for sending the email directly to you Pawel, I should have looked before I send the emails.
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