On Thu, 2015-12-10 at 14:04 +0000, Buterbaugh, Kevin L wrote: > Hi All, > > We recently moved all of our metadata off of spinning hard drives to > SSD’s via restriping. You can restripe only a specific pool with the > “-P” option, so if you have only your metadata disks in the system pool > then you can definitely do this… >
You are right the restriping can be done by pool, so this is I guess another argument for having only metadata disks in the system pool, with an appropriate policy so that data hits other pools. Typically/often the system pool has both metadata and data disks in, and what Luke was referring to is the fact you can't restripe just the metadata disks in a pool, so what should have been a relatively quick restriping of a few hundred GB of metadata all of a sudden becomes depending on the size of the data disks in your system pool a much longer operation; potentially to the point where you don't bother. JAB. -- Jonathan A. Buzzard Email: jonathan (at) buzzard.me.uk Fife, United Kingdom. _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss
