[dm-devel] query on device alias/black listing

[Christophe Varoqui]

On ven, 2005-10-28 at 14:35 +0530, Murthy, Narasimha Doraswamy (STSD)
wrote:
> Blacklisting of the device is possible using “wwid <wwn>” in blacklist
> block in /etc/multipath.conf. Is there any way to blacklist the device
> created with alias? Giving an alias name in devnode or wwid doesn’t
> seem to work.
> 
Yes, known limitation.

Do you request the feature ? I'm not fond of introducing this as we'll
have trouble keeping the blacklist in sync when aliases change ... are
you ?

> 
> 3. As it is not encouraged dmsetup utility to be used for multipathing
> devices, features like suspend and resume will be useful in bringing
> down the device for maintenance purposes. Any thoughts? 

Agreed.

The daemon, by design, is a good place to send "message-ioctls" like
these. Adding the daemon CLI command shouldn't be hard. I'll look into
it.

Regards,
cvaroqui