Saw this article posted:
MacOSG: MacOS X is having trouble handling SSD hard drive speeds
http://www.macsimumnews.com/index.p...aving_trouble_handling_ssd_hard_drive_speeds/
Wonder if this is the real reason the new MacBook Pros are running the SATA bus at 1.5Gb/s?
-Kevin
MacOSG: MacOS X is having trouble handling SSD hard drive speeds
http://www.macsimumnews.com/index.p...aving_trouble_handling_ssd_hard_drive_speeds/
Mac OS X has an issue with couple of things, and this was bound to happenthe Apple-written SATA controller driver can get saturated by a single SSD drive on ocassion, but two will definitely saturate the bus. The underlying issue is the fact that Mac OS X comes with journaling filesystem, a feature not present on Windows-based file systems.
The only way to avoid this is by buying an external RAID controller that comes with its own drivers, independent of the built-in SATA drivers. Now, brace for impact upcoming Mac OSX Snow Leopard WILL NOT fix this one in its initial release, we will have to wait for an Apple Update, if it ever comes out. The issue is present in all Mac OS X releases with SATA drive support, so you lose 10MB/s if you use a very fast SSD drive.
Wonder if this is the real reason the new MacBook Pros are running the SATA bus at 1.5Gb/s?
-Kevin