[ovirt-users] Re: Self Hosted Engine and iSCSI doubt

2018-05-09 Thread Veiko Kukk
2018-05-09 11:37 GMT+03:00 Gianluca Cecchi :
>
> I have the hierarchy
> ../target/tpg/luns/[lun0,lun1,lun2]
>
> so it seems I have to create two different targets and put the hosted
> engine lun under target1/tpg1 and then the data domain luns under
> target2/tpg2
>
>
No. You are missing the logic here. Path /target meants that following is a
iSCSI target. Each LUN is different target.
You can see more here
https://www.thomas-krenn.com/en/wiki/ISCSI_Basics#iSCSI_Target

Veiko
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[ovirt-users] Re: Self Hosted Engine and iSCSI doubt

2018-05-09 Thread Veiko Kukk
2018-05-09 11:07 GMT+03:00 Gianluca Cecchi :
>
> "
> IMPORTANT
> If you are using iSCSI storage, do not use the same iSCSI target for the
> shared
> storage domain and data storage domain.
> "
>
> Does it simply remark that the LUN for the hosted engine storage (shared
> storage domain) should be different from the LUN(s) used then for normal
> VMs (data storage domain), or what?
>
> I think it doesn't refer to the portal that for some reason needs to be
> different, correct?
>
> Any clarification about this restrictions?
>
>
>
I do not know. But I would guess it might be to avoid errors during
mounting/unmounting those two logically separate storage domains if they
are on the same physical resource.

Veiko
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