RAID 1 configuration failure(Provider Too Small)

[Sean Bruno]

Pawel Jakub Dawidek wrote:
> On Thu, Jul 05, 2007 at 11:44:27AM -0700, Sean Bruno wrote:
>   
>> I'm trying to setup a 2 disk RAID 1 on my Dell PE 1850 between two identical Seagate SCSI drives with the howto at: 
>> http://www.onlamp.com/pub/a/bsd/2005/11/10/FreeBSD_Basics.html
>>
>> I am able to convert my root drive(da0) to geom and reboot just fine.  I am failing when I run:
>>
>> |*gmirror insert gm0 /dev/da1*|
>>
>>
>> The second step of converting the mirror drive of my RAID1 (da1) fails with the same "Provider da1 too small" error no matter what I attempt to do.  The drives are 
>> reporting exactly the same size according to fdisk(see below).  Any ideas here?
>>     
>
> fdisk? You are operating on raw disks, so it doesn't matter what
> fdisk(8) reports. Compare disk sizes with diskinfo(8).
>
>   
Ah...thanks!  That makes more sense.  I guess I'll re-install on the 
smaller drive and then mirror to the larger one?  Does that sound 
reasonable?

desdemona# diskinfo da0 da1
da0     512     73407868928     143374744       8924    255     63
da1     512     73407820800     143374650       8924    255     63


Sean