[dm-devel] Re : help: device mapper table syntax for mirror option

[Alasdair G Kergon]

On Thu, Jul 24, 2003 at 08:03:08PM +0530, kiran dalvi wrote:
>   I am trying to mirror two hard disk partitions of 200MB each with 
> following devicemapper table settings

Device offsets/sizes should be specified in units of sectors (512 bytes)
so second param (device size) should be 200781*2 ? [=number of sectors
on /dev/hda7 = num sects on /dev/hda8]

And if you specify device /dev/hda7 you probably then want offset to be 0 
within that device?  [and same for hda8]

Alasdair
-- 
agk at uk.sistina.com