Re: discuss about commit 3b0f9ce: filter-mpath: get wwids from sysfs vpd_pg83

On 11/15/23 16:51, Peter Rajnoha wrote:
> On 11/14/23 17:30, David Teigland wrote:
>> On Tue, Nov 14, 2023 at 08:55:39AM +0100, Peter Rajnoha wrote:
>>> On 11/13/23 19:38, David Teigland wrote:
>>>> - In general, it's old versions of lvm that we're discussing here.
>>>> Current lvm uses system.devices by default, where none of this is
>>>> relevant.  We can just turn off a number of filters when system.devices is
>>>> in use, including filter-mpath and filter-md.  It may still be interesting
>>>> to look at improvements, but the context for that is older stable,
>>>> released versions.

 From the lvm2 code, above description is wrong. By default, system/devices is
disabled status. Because lvm.conf option "use_devicesfile = 0" by default.
under "use_devicesfile = 0", any pvcreate/vgcreate/lvmdevices/vgimportdevices
won't generate/create system/devices file.
If my watching is correct, part discussion of this thread may invalid.

@David could you confirm my writing?

Thanks,
Heming