I see that the configuration tested in this X4500 writeup only uses the four built-in gigabit ethernet interfaces. This places a natural limit on the amount of data which can stream from the system. For local host access, I am achieving this level of read performance using one StorageTek 2540 (6 mirror pairs) and a single reading process. The X4500 with 48 drives should be capable of far more.
The X4500 has two expansion bus slows but they are only 64-bit 133MHz PCI-X so it seems that the ability to add bandwidth via more interfaces is limited. A logical improvement to the design is to offer PCI-E slots which can support 10Gbit ethernet, Infiniband, or Fiber Channel cards so that more of the internal disk bandwidth is available to "power user" type clients. Bob ====================================== Bob Friesenhahn [EMAIL PROTECTED], http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/ _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
