[ovirt-users] lvm_dev_whitelist vdsm.conf option

[Johannes Tiefenbacher]

On 2016-02-15 17:05, jojo wrote:
> On 2016-02-15 16:09, Adam Litke wrote:
>> On 11/02/16 17:22 +0100, Johannes Tiefenbacher wrote:
>>> Hi,
>>> I am wondering what the lvm_dev_whitelist vdsm.conf option is for?
>>>
>>> I had some issues whith vdsm switching off logical volumes that it 
>>> better should keep it's hands off.
>>>
>>> Could this option help to handle this?
>>
>> Yes this option should be exactly what you are looking for.  You
>> specify a comma separated list of glob expressions and vdsm will
>> instruct lvm to ignore all devices which are not matched by your list.
>>
>> See:
>> https://www.centos.org/docs/5/html/Cluster_Logical_Volume_Manager/lvm_filters.html 
>>
>> for more background information on the LVM filters.
>>
>
> perfect, I will try this out.
> thanks a lot for your answer.
> all the best
> Jojo

Hi Adam,

I configured this now but I am not sure how I could confirm if I have 
the syntax correct.
I want vdsm to leave alone the VGs called ovirt and kvmvg.


lvm_dev_whitelist = [ "r|^/dev/kvmvg|", "r|^/dev/ovirt|" ]

I restarted vdsmd and did not get any error.

I also tried to write some bollocks to vdsm.conf, restarted and searched 
for an error in vdsm.log. surprisingly that also seems to work !?!

so the general question actually is: how can i make sure that vdsm.conf 
options are read correctly. where and when is this checked? what to look 
for in vdsm.log (or even other log files?)

thanks
Jojo
LINBIT VIE