On 19.08.2012 23:16, Smithies, Russell wrote: > For a high-performance system (64-cores, 512GB RAM, 5TB local disk, > 110TB NFS-mounted storage) is there any advantage of dropping lvm and > mounting partitions directly? > We're not planning on changing partition sizes, but if we did we'd > probably do a full rebuild. > Has anyone done performance testing to show that lvm isn't crippling > I/O? > > Thanx, > > Russell I'm a long time user of LVM and I never noticed any problems with it, let alone "crippling IO". In some benchmarks[1] it even speeds up things and I believe the Anaconda automatic partitioning defaults to LVM, too. [1] - http://www.phoronix.com/scan.php?page=article&item=fedora_15_lvm&num=3 -- Sent from the Delta quadrant using Borg technology! Nux! www.nux.ro