Re: RFC: Don't label filesystems

[Patrick Devine <patrickd vmware com>]

On Sat, 15 Mar 2008, Jeremy Katz wrote:

> That's the crux -- the label being done automatically isn't necessarily
> really that much more helpful than the UUID.  And I don't think it's
> something we want to punt to asking the user.  So we either need to
>  a) Come up with some better heuristic for the labels within the
> constraints for label lengths, or
>  b) give up on them
>
> I'm leaning more towards b because a just feels like losing.  And yeah,
> there does seem to be a duplicate label bug right now and I haven't
> managed to get to the bottom of it yet either.

Having gone through the LABEL/UUID code a half dozen times I can only 
think how messy coming up with some crazy scheme to provide uniqueness in 
labels, particularly when you're dealing with systems which have upwards 
of over 200 LUNs attached to them (in the case of Enterprise machines 
attached to big SANs) and moving those between hosts.  Just go with the 
UUIDs.  They make everything a lot easier.

--Patrick.