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.
--
Les Mikesell
lesmikesell at gmail.com