Hi Dale,

this is exactly, what I am currently trying and the iostat errors are from that 
import run.

Stephan

Von meinem iPhone gesendet

> Am 25.01.2017 um 18:38 schrieb Dale Ghent <[email protected]>:
> 
> 
> Oh, ok, I misunderstood you as trying to import illumos vdevs directly onto a 
> Oracle Solaris server.
> 
> This line:
> 
>>>> status: The pool was last accessed by another system.
> 
> indicates that the zpool was uncleanly exported (or not exported at all) on 
> the previous system it was imported on and the hostid of that system is still 
> imprinted in the vdev labels for the zpool (not the hostid of the system you 
> are trying to import on)
> 
> Have you tried 'zpool import -f vsmPool10' ?
> 
> /dale
> 
>> On Jan 25, 2017, at 12:14 PM, Stephan Budach <[email protected]> wrote:
>> 
>> Hi Dale,
>> 
>> I know that and it's not that I am trying to import a S11.1 zpool on omniOS 
>> or vice versa. It's that the targets are omniOS and the initiator is S11.1. 
>> I am still trying to import the zpool on S11.1. My question was more 
>> directed at COMSTAR, which both still should have some fair overlapping, no?
>> 
>> I am in contact with Oracle and he mentioned some issues with zvols over 
>> iSCSI targets, which may be present for both systems, so I thought, that I'd 
>> give it a shot, that's all.
>> 
>> Cheers
>> Stephan
>> 
>>> Am 25.01.17 um 18:07 schrieb Dale Ghent:
>>> ZFS as implemented in Oracle Solaris is *not* OpenZFS, which is what 
>>> illumos (and all illumos distros), FreeBSD, and the ZFS on Linux/macOS 
>>> projects use. Up to a level of features, the two are compatible - but then 
>>> they diverge in features. If one pool has features the zfs driver does not 
>>> understand, you could run the risk of refusal to import as indicated here.
>>> 
>>> Seeing as how Oracle itself does not include OpenZFS features in its ZFS 
>>> implementation, and Oracle does not provide any information to OpenZFS 
>>> regarding features it invents, this will unfortunately be the state of 
>>> things unless Oracle changes its open source or information sharing 
>>> policies. Unfortunate but that's just the way things are.
>>> 
>>> /dale
>>> 
>>> 
>>>> On Jan 25, 2017, at 8:54 AM, Stephan Budach <[email protected]>
>>>> wrote:
>>>> 
>>>> Hi guys,
>>>> 
>>>> I have been trying to import a zpool, based on a 3way-mirror provided by 
>>>> three omniOS boxes via iSCSI. This zpool had been working flawlessly until 
>>>> some random reboot of the S11.1 host. Since then, S11.1 has been importing 
>>>> this zpool without success.
>>>> 
>>>> This zpool consists of three 108TB LUNs, based on a raidz-2 zvols… yeah I 
>>>> know, we shouldn't have done that in the first place, but performance was 
>>>> not the primary goal for that, as this one is a backup/archive pool.
>>>> 
>>>> When issueing a zpool import, it says this:
>>>> 
>>>> root@solaris11atest2:~# zpool import
>>>>  pool: vsmPool10
>>>>    id: 12653649504720395171
>>>> state: DEGRADED
>>>> status: The pool was last accessed by another system.
>>>> action: The pool can be imported despite missing or damaged devices.  The
>>>>        fault tolerance of the pool may be compromised if imported.
>>>>   see:
>>>> http://support.oracle.com/msg/ZFS-8000-EY
>>>> 
>>>> config:
>>>> 
>>>>        vsmPool10                                  DEGRADED
>>>>          mirror-0                                 DEGRADED
>>>>            c0t600144F07A3506580000569398F60001d0  DEGRADED  corrupted data
>>>>            c0t600144F07A35066C00005693A0D90001d0  DEGRADED  corrupted data
>>>>            c0t600144F07A35001A00005693A2810001d0  DEGRADED  corrupted data
>>>> 
>>>> device details:
>>>> 
>>>>        c0t600144F07A3506580000569398F60001d0    DEGRADED         
>>>> scrub/resilver needed
>>>>        status: ZFS detected errors on this device.
>>>>                The device is missing some data that is recoverable.
>>>> 
>>>>        c0t600144F07A35066C00005693A0D90001d0    DEGRADED         
>>>> scrub/resilver needed
>>>>        status: ZFS detected errors on this device.
>>>>                The device is missing some data that is recoverable.
>>>> 
>>>>        c0t600144F07A35001A00005693A2810001d0    DEGRADED         
>>>> scrub/resilver needed
>>>>        status: ZFS detected errors on this device.
>>>>                The device is missing some data that is recoverable.
>>>> 
>>>> However, when  actually running zpool import -f vsmPool10, the system 
>>>> starts to perform a lot of writes on the LUNs and iostat report an 
>>>> alarming increase in h/w errors:
>>>> 
>>>> root@solaris11atest2:~# iostat -xeM 5
>>>>                         extended device statistics         ---- errors ---
>>>> device    r/s    w/s   Mr/s   Mw/s wait actv  svc_t  %w  %b s/w h/w trn tot
>>>> sd0       0.0    0.0    0.0    0.0  0.0  0.0    0.0   0   0   0   0   0   0
>>>> sd1       0.0    0.0    0.0    0.0  0.0  0.0    0.0   0   0   0   0   0   0
>>>> sd2       0.0    0.0    0.0    0.0  0.0  0.0    0.0   0   0   0  71   0  71
>>>> sd3       0.0    0.0    0.0    0.0  0.0  0.0    0.0   0   0   0   0   0   0
>>>> sd4       0.0    0.0    0.0    0.0  0.0  0.0    0.0   0   0   0   0   0   0
>>>> sd5       0.0    0.0    0.0    0.0  0.0  0.0    0.0   0   0   0   0   0   0
>>>>                         extended device statistics         ---- errors ---
>>>> device    r/s    w/s   Mr/s   Mw/s wait actv  svc_t  %w  %b s/w h/w trn tot
>>>> sd0      14.2  147.3    0.7    0.4  0.2  0.1    2.0   6   9   0   0   0   0
>>>> sd1      14.2    8.4    0.4    0.0  0.0  0.0    0.3   0   0   0   0   0   0
>>>> sd2       0.0    4.2    0.0    0.0  0.0  0.0    0.0   0   0   0  92   0  92
>>>> sd3     157.3   46.2    2.1    0.2  0.0  0.7    3.7   0  14   0  30   0  30
>>>> sd4     123.9   29.4    1.6    0.1  0.0  1.7   10.9   0  36   0  40   0  40
>>>> sd5     142.5   43.0    2.0    0.1  0.0  1.9   10.2   0  45   0  88   0  88
>>>>                         extended device statistics         ---- errors ---
>>>> device    r/s    w/s   Mr/s   Mw/s wait actv  svc_t  %w  %b s/w h/w trn tot
>>>> sd0       0.0  234.5    0.0    0.6  0.2  0.1    1.4   6  10   0   0   0   0
>>>> sd1       0.0    0.0    0.0    0.0  0.0  0.0    0.0   0   0   0   0   0   0
>>>> sd2       0.0    0.0    0.0    0.0  0.0  0.0    0.0   0   0   0  92   0  92
>>>> sd3       3.6   64.0    0.0    0.5  0.0  4.3   63.2   0  63   0 235   0 235
>>>> sd4       3.0   67.0    0.0    0.6  0.0  4.2   60.5   0  68   0 298   0 298
>>>> sd5       4.2   59.6    0.0    0.4  0.0  5.2   81.0   0  72   0 406   0 406
>>>>                         extended device statistics         ---- errors ---
>>>> device    r/s    w/s   Mr/s   Mw/s wait actv  svc_t  %w  %b s/w h/w trn tot
>>>> sd0       0.0  234.8    0.0    0.7  0.4  0.1    2.2  11  10   0   0   0   0
>>>> sd1       0.0    0.0    0.0    0.0  0.0  0.0    0.0   0   0   0   0   0   0
>>>> sd2       0.0    0.0    0.0    0.0  0.0  0.0    0.0   0   0   0  92   0  92
>>>> sd3       5.4   54.4    0.0    0.3  0.0  2.9   48.5   0  67   0 384   0 384
>>>> sd4       6.0   53.4    0.0    0.3  0.0  4.6   77.7   0  87   0 519   0 519
>>>> sd5       6.0   60.8    0.0    0.3  0.0  4.8   72.5   0  87   0 727   0 727
>>>> 
>>>> 
>>>> I have tried pulling data from the LUNs using dd to /dev/null and I didn't 
>>>> get any h/w error, this just started, when trying to actually import the 
>>>> zpool. As the h/w errors are constantly rising, I am wondering what could 
>>>> cause this and if there can something be done about this?
>>>> 
>>>> Cheers,
>>>> Stephan
>>>> _______________________________________________
>>>> OmniOS-discuss mailing list
>>>> 
>>>> [email protected]
>>>> http://lists.omniti.com/mailman/listinfo/omnios-discuss
>> 
>> 
>> --
>> Krebs's 3 Basic Rules for Online Safety
>> 1st - "If you didn't go looking for it, don't install it!"
>> 2nd - "If you installed it, update it."
>> 3rd - "If you no longer need it, remove it."
>> 
>> http://krebsonsecurity.com/2011/05/krebss-3-basic-rules-for-online-safety
>> 
>> 
>> 
>> Stephan Budach
>> Head of IT
>> Jung von Matt AG
>> Glashüttenstraße 79
>> 20357 Hamburg
>> 
>> 
>> Tel: +49 40-4321-1353
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>> E-Mail:
>> [email protected]
>> 
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>> 
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>> 
>> 
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>> Strerath, Götz Ulmer
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>> AG HH HRB 72893
>> 
>> 
> 

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