Hi Luca, great idea!
But a dd is more than a lvremove...
But as well it could mean that the deploy script may look for a
particular vg which stays present after the dd. Rebooting forces the
vgscan not to find this particular vg...
So vgremove is really the good way to clean up a lun, and it should be
the official way into the admin guide
Le 03/10/2018 à 13:23, Luca 'remix_tj' Lorenzetto a écrit :
On Wed, Oct 3, 2018 at 12:24 PM Nathanaël Blanchet <blanc...@abes.fr> 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
--
Nathanaël Blanchet
Supervision réseau
Pôle Infrastrutures Informatiques
227 avenue Professeur-Jean-Louis-Viala
34193 MONTPELLIER CEDEX 5
Tél. 33 (0)4 67 54 84 55
Fax 33 (0)4 67 54 84 14
blanc...@abes.fr
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