On 8 Aug 2011, at 04:57, Rafa Griman wrote: > I know we could "just add" and restripe the existing files. But the > customer wants to physically move 100 drives from the existing S2A9900 > to the new one in order to have 400 drives on one S2A9900 and 400 > drives on the other one.
It would be more balanced if they do that. > So my questions are: > 1.- Can this be done (move drives between OSTs) without losing data? Moving drives between OSTs does not make sense - the OST is the data stored on the drives. It is possible to move drives between controllers, you should contact DDN support for advice on this. > 2.- Can an OST be moved from one OSS to another without losing data? Yes, you need to use tunefs.lustre for this. > 3.- Has anyone done this? How? We've done this, not frequently or as part of standard maintenance but it's not unusual when expanding filesystems in the way you are. Ashley. _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
