[OpenIndiana-discuss] zpool on the second partition of an external disk

[Udo Grabowski (IMK)]

On 08/09/2017 23:41, PÁSZTOR György wrote:
> Hi,
>
> "Udo Grabowski (IMK)" <udo.grabowski at kit.edu> írta 2017-09-08 17:39-kor:
>> On 08/09/2017 17:33, Apostolos Syropoulos via openindiana-discuss wrote:
>>>> I should mind my p's and s's.  Thanks, Andrew; you're right.  I was
>>>> thinking of s2, not p2.
>>>
>>> So what I did what correct, right? I have mounted both partitions and the
>>> dataare there and I can read and write.
>>
>> No. Your boot slice #8 is overlapped by s2. It is not
>> recommended to use s2 for anything.
>>
>> Configure s0 instead with tag root, and use only the region
>> above the boot slice (that is, from cylinder 1 upwards).
>
> I don't think he configured any slice by hand. It was zpool what prepared
> the whole stuff.
> And there is NO overlap here. As it was already told: s2 (NOT p2) means the
> whole "drive"/ "partition". Depends on the case.
>
> Everything is right. No need to scare him away.
>

No, s2 has been actively configured to be used as a zpool slice,
zfs tools don't do that. Therefore, the next one that will touch
slice s8 will destroy the data on "slice" s2 (the problem is just
the other way round than you think). Therefore, by convention don't
use s2 actively, any other activity on s<n> (<n>/=2) will destroy
data.
-- 
Dr.Udo Grabowski    Inst.f.Meteorology a.Climate Research IMK-ASF-SAT
http://www.imk-asf.kit.edu/english/sat.php
KIT - Karlsruhe Institute of Technology            http://www.kit.edu
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