[CentOS] RHEL/Centos6 handling disks w/4k sectors?
Ray Van Dolson
rayvd at bludgeon.orgMon Feb 7 03:51:26 UTC 2011
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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
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