Date: Tue, 21 Oct 2014 22:10:17 +0200 From: Daniel Dettlaff <dmilith@me.com> To: freebsd-current@freebsd.org Subject: ZFS: i/o error - all block copies unavailable #2 Message-ID: <etPan.5446bda9.749f1207.2615@frenziedmon.vks01.verknowsys.com>
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Hi=21 I saw posts from 2009 on this mailing list, about a boot issue with Z=46S= . I have IBM server with HW RAID10 made from 36 disks. I'm using =46reeBSD 9.2-RELEASE. =46rom system point of view my raid is seen as 65TiB drive at /dev/mfid0 =46rom Z=46S point of view it's plain stripe as one zvol (on mfid0p2). My= partition layout is GPT: root=40backup7:=7E =23 gpart show =3D> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A034 =C2=A0140624990141 =C2=A0mfid0 = =C2=A0GPT =C2=A0(65T) =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A034 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 128 =C2=A0 =C2=A0 =C2=A01 =C2=A0freebsd-boot =C2=A0(64k= ) =C2=A0 =C2=A0 162 =C2=A0140624990013 =C2=A0 =C2=A0 =C2=A02 =C2=A0freebsd-= zfs =C2=A0(65T) It was installed using mfsbsd installer based on =46reeBSD 9.2. This machine has been working happily, until today when I did =22reboot=22= . After that system is unbootable, and throws on boot: Z=46S: i/o error - all block copies unavailable Z=46S: can't find root dsl=5Fdir My pool is ok, I can boot to it through external ISO (f.e. mfsbsd). Also =22status=22 shows that everything's fine (screenshot of what my kvm= shows there): http://s.verknowsys.com/5f6de0dfbc6d576dc53c000409a27e344e60adee.png I saw in previous thread (http://marc.info/=3Fl=3Dfreebsd-fs&m=3D12580756= 4213035&w=3D2), that there's a patch for raidz that somewhat fixes that i= ssue in =46reeBSD 8.x with raidz. So far I did try many =22solutions=22 but none helped in that matter. I did try: update bootcode, move /boot from one place to other, update ke= rnel, switch between kernel / kernel.old, and several more or less stupid= attempts to fix it Any ideas=3F -- Daniel (dmilith) Dettlaff irc: dmilith on irc.freenode.net skype: dmilith
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