[DRBD-user] Problem with upgrading drbd storage

[Stefan Priebe - allied internet ag]

Hi!

I thought the online resize only applies to resizing drbd block layer
and resizing the file system.

I thought resizing the partition is no problem. So when i set now the
old partition size it should work again :-)

Stefan

Stefan Seifert schrieb:
> On Monday 23 November 2009 16:30:23 Stefan Priebe - allied internet ag wrote:
> 
>> I've now done the following:
>> 1.) stopped the backup machine
>> 2.) upgraded the Raid 10 in that machine (without destroying any data)
>> 3.) deleted partition and created new bigger partition on that device
>> 4.) Data is still there when i mount the partition i see everything
>> 5.) but drbd does not start to sync after starting drbd.
>>
>> Where has the metadata gone? Shouldn't drbd able to sync now?
> 
> DRBD stores it's meta data at the end of the used device. So it cannot find it 
> anymore since you moved the end away from the meta data. That's the reason why 
> one should follow the DRBD user's guide which tells you to do the resize while 
> drbd is online, so drbd still knows where it's meta data is and can move it to 
> the new end of the device. Offline resize is much more difficult.
> 
> Regards,
> Stefan
> 
> 
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