On Wed, Oct 3, 2018 at 12:24 PM Nathanaël Blanchet <[email protected]> wrote:
>
> Hi all,
>
> I tried to install the Hosted-Engine on a FC lun, and  the first time, it 
> failed at the end because of a sanlock issue.
> So I fixed it and the re-deoployed from scratch until this new issue
> [ ERROR ] Error: Fault reason is "Operation Failed". Fault detail is 
> "[Physical device initialization failed. Please check that the device is 
> empty and accessible by the host.]". HTTP response code is 400.
>
> Before, I found that the lun [2] was used:
>
> [ INFO  ] ok: [localhost]
>           The following luns have been found on the requested target:
>               [1]    36006016039a142001792ac5b1b9e513a    1024GiB    DGC    
> VRAID
>                   status: free, paths: 8 active
>
>               [2]    36006016039a142006755b25b7505d26b    100GiB    DGC    
> VRAID
>                   status: used, paths: 8 active
>
> So it was the good explanation for the failure.
>
> Following the admin guide, I cleaned up the lun using
>
> # dd if=/dev/zero of=/dev/mapper/36006016039a142006755b25b7505d26b bs=1M 
> count=200 oflag=direct
>
> And re-deployed it until it complains the device was not empty despite of 
> before. The script still reported that the status of the lun was "used"
>
> Finally, I rebooted the host, and that time the script considered the lun 
> status as free.
>
> So there is somewhere a bit of code into the ansible script that keeps the 
> old status of the lun before dd, until rebooting.
>

Hello,

for removing a volume i usually disable the logical volume (vgremove)
and then the physical volume (pvremove). At this point i have the
device marked as clean.

Luca

-- 
"E' assurdo impiegare gli uomini di intelligenza eccellente per fare
calcoli che potrebbero essere affidati a chiunque se si usassero delle
macchine"
Gottfried Wilhelm von Leibnitz, Filosofo e Matematico (1646-1716)

"Internet è la più grande biblioteca del mondo.
Ma il problema è che i libri sono tutti sparsi sul pavimento"
John Allen Paulos, Matematico (1945-vivente)

Luca 'remix_tj' Lorenzetto, http://www.remixtj.net , <[email protected]>
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