Date: Tue, 21 Oct 2014 22:44:18 +0200 From: Daniel Dettlaff <dmilith@gmail.com> To: freebsd-current@freebsd.org Subject: ZFS: i/o error - all block copies unavailable #2 Message-ID: <etPan.5446c5a2.78f17764.2615@frenziedmon.vks01.verknowsys.com>
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Hi! I saw posts from 2009 on this mailing list, about a boot issue with ZFS. I have IBM server with HW RAID10 made from 36 disks. I'm using FreeBSD 9.2-RELEASE. From system point of view my raid is seen as 65TiB drive at /dev/mfid0 From ZFS point of view it's plain stripe as one zvol (on mfid0p2). My partition layout is GPT: root@backup7:~ # gpart show => 34 140624990141 mfid0 GPT (65T) 34 128 1 freebsd-boot (64k) 162 140624990013 2 freebsd-zfs (65T) It was installed using mfsbsd installer based on FreeBSD 9.2. This machine has been working happily, until today when I did "reboot". After that system is unbootable, and throws on boot: ZFS: i/o error - all block copies unavailable ZFS: can't find root dsl_dir My pool is ok, I can boot to it through external ISO (f.e. mfsbsd). Also "status" 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/?l=freebsd-fs&m=125807564213035&w=2), that there's a patch for raidz that somewhat fixes that issue in FreeBSD 8.x with raidz. So far I did try many "solutions" but none helped in that matter. I did try: update bootcode, move /boot from one place to other, update kernel, switch between kernel / kernel.old, and several more or less stupid attempts to fix it Any ideas? -- Daniel (dmilith) Dettlaff
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