/pub/archive moving to a new volume

[Kevin Fenzi]

Greetings. 

The current fedoraproject main mirror content is currently on a SSD
aggregate, but this aggregate is running low on space. So, we are going
to be moving the /pub/archive tree from the current aggregate to a SAS
backed one.

Short term this should have no effect other than /pub/archive
downloads/syncs being a bit slower, and possibly some space saved as I
am hardlinking it all before we switch to it. 

Longer term, the next time we archive a release, mirrors that do not
sync archive will just see the release be deleted. mirrors that do also
mirror archive will see the content disappear and re-appear on archive.
Unfortunately since the volumes will be seperate we can no longer hard
link them when migrating to archives. 

Thanks again for mirroring for Fedora!

kevin