[CentOS] raid resync speed? - laptop drive-

Sat May 22 16:29:57 UTC 2010
Les Mikesell <lesmikesell at gmail.com>

Robert Nichols wrote:
> On 05/21/2010 07:39 PM, Robert Nichols wrote:
>> You have another way out.  By my calculation, that drive is partitioned
>> in DOS compatibility mode, which leaves the remainder of the MBR track
>> unused.  Running fdisk in expert mode ("x" command), you can move the
>> partition's beginning of data ("b" command) from sector 63 back to
>> sector 56.  That will give you the needed 4K alignment and a partition
>> that is no smaller than what it was before.
> 
> Right idea, not the right procedure.  You'll need to turn off DOS
> compatibility mode, then create the partition, and then go into
> expert mode and move the beginning of data from sector 1 to sector
> 56.
> 

It ended up like this, but still sync'ing at about 4M/sec instead of 40.


Expert command (m for help): p

Disk /dev/sdh: 255 heads, 63 sectors, 91201 cylinders

Nr AF  Hd Sec  Cyl  Hd Sec  Cyl     Start      Size ID
  1 00   0   2    0 254  63   64         56 1465144009 fd


-- 
   Les Mikesell
    lesmikesell at gmail.com