I read the man on pvmove and it looks very cool, especially the 
"auto-continue" if there is some sort of system interruption. I plan to 
try this on a new, non-production machine I am building out, but need to 
do something right now on the Windows LV.

BUT, according to 'man pvmove' it doesn't have a switch to leave a copy 
behind, or the old extents in place for a fallback. That makes me a 
little apprehensive about having something ready to roll back to in its 
most current "data" state.

I don't think I am in the mood for this to be my first test case. haha. 
Feel's like a Murphy's Law morning.


RedShift wrote:
> Ben M. wrote:
>> Using CentOS Xen current with the 5.4 update applied.
>>
>> I need to move a Windows 2008 installation in LVM2 from one pv/vg/lv to 
>> different disk pv/vg/lv.
>>
>> What are considered safe ways to move it on same machine and retain a
>> copy until sure it reboots?
>>
>> Turn off (shutdown) in Xen create identical extents in target pv/vg/lv 
>> and mount -t ntfs and cp? dd? rsync?
>>
>> Or pvmove (doesn't look like it retains a copy)?
>>
>> Is there an equivalent to AIX cplv?
>>
>>
> 
> 
> If you haven't created a volumegroup on the new target disks, add those disks 
> to the old volume group, execute pvmove on the old logical volume, when 
> that's complete, execute vgsplit to create the new volume group. Pvmove is 
> pretty robust, it can restart if it's been interrupted and can be aborted.
> 
> 
> Glenn
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> CentOS-virt mailing list
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> 

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