[DRBD-user] Unable to re-use device in stand-alone mode

Helmut Wollmersdorfer helmut.wollmersdorfer at fixpunkt.de
Fri Apr 1 09:54:02 CEST 2011

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.

Am 31.03.2011 um 18:02 schrieb Brian R. Hellman:

> If you're really sure you want to be primary and blow away the data on
> the other node you can do:

> drbdadm -- --overwrite-data-of-peer primary drbd1_2

> Where drbd1_2 is the device you want to promote to become your new  
> primary.

root at xen09:/# cat /proc/drbd
version: 8.3.7 (api:88/proto:86-91)
srcversion: EE47D8BF18AC166BE219757

  1: cs:WFConnection ro:Primary/Unknown ds:UpToDate/Outdated C r----
     ns:0 nr:0 dw:0 dr:200 al:0 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 wo:b oos: 
  2: cs:WFConnection ro:Secondary/Unknown ds:Consistent/DUnknown C r----
     ns:0 nr:0 dw:0 dr:0 al:0 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 wo:b oos:0

root at xen09:/# drbdadm -- --overwrite-data-of-peer primary drbd1_2
2: State change failed: (-2) Refusing to be Primary without at least  
one UpToDate disk
Command 'drbdsetup 2 primary --overwrite-data-of-peer' terminated with  
exit code 17

If there is no way to reuse the device then it's a grave bug or  
misconception of DRBD.
Isn't it the main reason to use DRBD to have a usable device in the  
case of a damaged hardware-node?

Helmut Wollmersdorfer

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