On Thu, 11 Mar 2010 12:01:27 -0600 Eric Evans <eev...@rackspace.com> wrote:
EE> On Wed, 2010-03-10 at 23:20 -0600, Jonathan Ellis wrote: >> On Wed, Mar 10, 2010 at 9:31 PM, Anthony Molinaro >> <antho...@alumni.caltech.edu> wrote: >> > I would almost recommend just keeping things simple and removing >> > multiple data directories from the config altogether and just >> > documenting that you should plan on using OS level mechanisms for >> > growing diskspace and io. >> >> I think that is a pretty sane suggestion actually. EE> Or maybe leave the code as is and just document the situation more EE> clearly? If you're adding more disks to increase storage capacity EE> and you don't strictly need the extra IO, then multiple data EE> directories might be preferable to other forms of aggregation (it's EE> certainly simpler than say a volume manager). Could Cassandra use a block device as raw storage? You avoid the filesystem overhead and it lets the sysadmin determine the best kind of device (RAID or not underneath) to allocate. Ted
