On 5/21/2010 12:13 PM, John R Pierce wrote:
Les Mikesell wrote:
OK, I can get a full-size Seagate 750G to resync at about 40M/s which easily completes in a workday. But now what I really want to do is use a laptop size 'WD Scorpio blue' drive which claims to have the same sector count but will only sync at about a tenth of the speed. It does say it uses 'advanced format', which I think means 4k sectors. Should that make a difference? Read speed tests show about the same as the desktop drives but writes are much slower.
From what I've read, you have to 'trim' those drives much like SSD so the partition starts on a 4K boundary. I understand you can do this with parted.
But it is just a match for the Seagate drives with the default layout using one partition that fills the disk. If I have to skip some amount at the start of the partition I think that will make the partition size not match, making it impossible to add as a raid member.