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 newly created. That could result in an imbalance - old, cold data vs.
new, hot data. In our case, we migrate some of the old data around, such that the fill level of the OSTs becomes ~equal.
Regards,
Thomas
On 12/1/23 19:18, Lana Deere via lustre-discuss wrote:
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 for the system to do this?
Thanks.
.. Lana (lana.de...@gmail.com)
___
lustre-discuss mailing list
lustre-discuss@lists.lustre.org
http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org
___
lustre-discuss mailing list
lustre-discuss@lists.lustre.org
http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org
