Date: Thu, 12 Dec 2013 19:31:43 +0600 From: "Eugene M. Zheganin" <emz@norma.perm.ru> To: freebsd-stable@freebsd.org Subject: Re: zfs i/o error - all block copies unavailable Message-ID: <52A9BABF.6060403@norma.perm.ru> In-Reply-To: <52A99894.4080704@FreeBSD.org> References: <52A8C5AF.1000800@norma.perm.ru> <52A99894.4080704@FreeBSD.org>
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Hi.
On 12.12.2013 17:05, Andriy Gapon wrote:
>
> A few words about your pool configuration and the disks that it is comprised of...
>
It was created under 8.2-STABLE, still not upgraded.
Now it's running on one disk (I keep another as a cold backup, just in
case).
It has a separated log device (addition or removal doesn't affect the
error message - I tried that).
Disks:
diskid/DISK-MK0311YHG8W4EA is ada2, got this strange id while importing
pool on different machines and different FreeBSd versions.
ada1 is a blank disk, waiting to attach and resilver.
ada0 is a separate log device.
BIOS is set to boot from ada2 first.
Other data:
===Cut===
# zpool status
pool: zfsroot
state: DEGRADED
status: One or more devices could not be opened. Sufficient replicas
exist for
the pool to continue functioning in a degraded state.
action: Attach the missing device and online it using 'zpool online'.
see: http://illumos.org/msg/ZFS-8000-2Q
scan: resilvered 352G in 9h34m with 0 errors on Thu Dec 12 09:20:25 2013
config:
NAME STATE READ WRITE CKSUM
zfsroot DEGRADED 0 0 0
mirror-0 DEGRADED 0 0 0
17492019096575782489 UNAVAIL 0 0 0
was /dev/diskid/DISK-MK0311YHG0P7KAp2
diskid/DISK-MK0311YHG8W4EAp2 ONLINE 0 0 0
logs
ada0 ONLINE 0 0 0
errors: No known data errors
# gpart show
=> 34 7814037101 ada1 GPT (3.6T)
34 4062 - free - (2.0M)
4096 128 1 freebsd-boot (64K)
4224 3968 - free - (1.9M)
8192 16777216 2 freebsd-swap (8.0G)
16785408 7797248000 3 freebsd-zfs (3.6T)
7814033408 3727 - free - (1.8M)
=> 34 5860533101 diskid/DISK-MK0311YHG8W4EA GPT (2.7T)
34 128 1 freebsd-boot (64K)
162 5860532973 2 freebsd-zfs (2.7T)
# zpool get version zfsroot
NAME PROPERTY VALUE SOURCE
zfsroot version 28 local
# camcontrol devlist
<ST380215A 3.AAD> at scbus0 target 0 lun 0 (ada0,pass0)
<ST4000DM000-1F2168 CC52> at scbus4 target 0 lun 0 (ada1,pass1)
<Hitachi HDS723030ALA640 MKAOA580> at scbus5 target 0 lun 0 (ada2,pass2)
# uname -a
FreeBSD witchdoctor.hq.norma.perm.ru 10.0-BETA1 FreeBSD 10.0-BETA1 #0
r257042: Fri Oct 25 10:36:18 YEKT 2013
emz@ravenholm:/usr/obj/usr/src/sys/GENERIC amd64
# zdb -uuu zfsroot
Uberblock:
magic = 0000000000bab10c
version = 28
txg = 14319226
guid_sum = 834775614900075866
timestamp = 1386855032 UTC = Thu Dec 12 19:30:32 2013
rootbp = DVA[0]=<0:1cdb997dc00:800> DVA[1]=<0:1823b8000:800>
DVA[2]=<0:8903e6de00:800> [L0 DMU objset] fletcher4 uncompressed LE
contiguous unique triple size=800L/800P birth=14319226L/14319226P
fill=1536 cksum=9d27e4420:11a5620d1142:fe973030dd097:99a2a40f6f1dcdc
# zdb
zfsroot:
version: 28
name: 'zfsroot'
state: 0
txg: 14309424
pool_guid: 956623217810981947
hostid: 1697066120
hostname: 'witchdoctor.hq.norma.perm.ru'
vdev_children: 2
vdev_tree:
type: 'root'
id: 0
guid: 956623217810981947
children[0]:
type: 'mirror'
id: 0
guid: 13487386534404888877
whole_disk: 0
metaslab_array: 23
metaslab_shift: 31
ashift: 9
asize: 3000588042240
is_log: 0
children[0]:
type: 'disk'
id: 0
guid: 17492019096575782489
path: '/dev/diskid/DISK-MK0311YHG0P7KAp2'
phys_path: '/dev/diskid/DISK-MK0311YHG0P7KAp2'
whole_disk: 0
not_present: 1
DTL: 29
children[1]:
type: 'disk'
id: 1
guid: 14768018157997934015
path: '/dev/diskid/DISK-MK0311YHG8W4EAp2'
phys_path: '/dev/diskid/DISK-MK0311YHG8W4EAp2'
whole_disk: 0
DTL: 27
children[1]:
type: 'disk'
id: 1
guid: 9470960829239143386
path: '/dev/ada0'
phys_path: '/dev/ada0'
whole_disk: 1
metaslab_array: 4113
metaslab_shift: 29
ashift: 9
asize: 80021553152
is_log: 1
create_txg: 14308146
features_for_read:
===Cut===
Thanks.
Eugene.
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