On Sun, Feb 06, 2011 at 02:50:34PM -0700, compdoc wrote:
the best write speed I can get is about 8MB/sec
A while back I researched 4k sector drives since most new drives have them now. There is a problem with speed if you get the partition wrong.
The answer seems to be to creating a partition with 1 meg of unpartitioned space preceding the first partition. This causes sector 2048 to be the first sector of the partition, and avoids the problem.
Newer versions of gparted do this for you automatically when you use it to create a partition.
Just did a SL 6.0 install on a machine with two Hitachi 2TB drives with 4K sectors. parted warned me that the default values I'd chosen weren't optimal for the sector size and I adjusted manually.
Note that I set these drives up post-install -- no idea if Anaconda would have done the "right thing" or not.
Ray