Not a problem at all.
Perhaps if you manage to mount your new OST for the first time just when your MGS/MDT and your network are completely overloaded and almost
unreactive, then, perhaps, there might be issues ;-)
Afterwards the new OST, being empty, will attract most of the files that are ne
I'm looking at the manual, 14.8, Adding a New OST to a Lustre File
System, and it looks straightforward. It isn;'t clear to me, however,
whether it is OK to do this while the rest of the lustre system is
live. Is it OK to add a new OST while the system is in use? Or do I
need to arrange downtime
