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Date:      Fri, 15 Apr 2011 06:30:16 +0200
From:      Pawel Tyll <ptyll@nitronet.pl>
To:        freebsd-fs@freebsd.org
Subject:   Consistent ZFS freeze while replacing.
Message-ID:  <1555997556.20110415063016@nitronet.pl>

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Hi list,

I'm running FreeBSD 8.2-STABLE #0: Wed Apr 13 03:03:08 CEST 2011
(amd64) along with
http://people.freebsd.org/~mm/patches/zfs/v28/stable-8-zfsv28-20110317.patch.xz

I replaced one device with another, and when replace was finishing,
pool froze. After two reboots (first one resulted in freeze while
importing the pool), system came up with pool in following state:

  pool: storage
 state: ONLINE
 scan: resilvered 689G in 19h35m with 0 errors on Thu Apr 14 23:37:10 2011
config:

        NAME                   STATE     READ WRITE CKSUM
        storage                ONLINE       0     0     0
          raidz1-0             ONLINE       0     0     0
            da16               ONLINE       0     0     0
            da17               ONLINE       0     0     0
            da18               ONLINE       0     0     0
            da19               ONLINE       0     0     0
            da20               ONLINE       0     0     0
            da21               ONLINE       0     0     0
            da22               ONLINE       0     0     0
            da23               ONLINE       0     0     0
          raidz1-1             ONLINE       0     0     0
            gpt/ST-5XW25KAR    ONLINE       0     0     0
            da6                ONLINE       0     0     0
            replacing-2        ONLINE       0     0     0
              da1              ONLINE       0     0     0
              gpt/ST-5XW24JDN  ONLINE       0     0     0
            gpt/ST-5XW0PKCM    ONLINE       0     0     0
            da5                ONLINE       0     0     0
            da3                ONLINE       0     0     0
            da7                ONLINE       0     0     0
            da4                ONLINE       0     0     0
          raidz1-3             ONLINE       0     0     0
            gpt/ST-5XW10ZKX    ONLINE       0     0     0
            gpt/ST-5XW1A9L6    ONLINE       0     0     0
            gpt/ST-5XW1BNGJ    ONLINE       0     0     0
            gpt/ST-5XW1ALPW    ONLINE       0     0     0
            gpt/ST-5XW11AQ5    ONLINE       0     0     0
            gpt/ST-5XW1330J    ONLINE       0     0     0
            gpt/ST-5XW18MD4    ONLINE       0     0     0
            gpt/ST-5XW10VB0    ONLINE       0     0     0
        logs
          mirror-2             ONLINE       0     0     0
            gpt/ssd1-log       ONLINE       0     0     0
            gpt/ssd2-log       ONLINE       0     0     0
        cache
          gpt/ssd1-cache       ONLINE       0     0     0
          gpt/ssd2-cache       ONLINE       0     0     0

This happened to me twice already and I have five more drives to
replace. Any ideas?





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