On Sat, 2009-08-08 at 09:17, Bob Friesenhahn wrote: > Enterprise storage should work fine without needing to run a tool to > optimize data layout or repair the filesystem. Well designed software > uses an approach which does not unravel through use.
Hmmmm, this is counter to my understanding. I always thought that to optimize sequential read performance you must store the data according to how the device will read the data. Spinning rust reads data in a sequential fashion. In order to optimize read performance it has to be laid down that way. When reading files in a directory, the files need to be laid out on the physical device sequentially for optimal read performance. I probably not he person to argue this point though....Is there a DBA around? Maybe my problems will go away once we move into the next generation of storage devices, SSD's! I'm starting to think that ZFS will really shine on SSD's. -- Ed _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
