[DRBD-user] ds:Inconsistent/Diskless

Felix Frank ff at mpexnet.de
Thu Apr 28 17:16:23 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.


(taking this back on-list)

On 04/28/2011 05:11 PM, Edwige Odedele wrote:
> Thank for response,
> 
>  Do you speak French?' if yes it will be easy for me)

Barely - what I know wouldn't make things easy for anyone ;-)

> 
> I didn't understand your sentence: " No good: Your DRBD is secondary.
> You cannot mount that."
> 
>  
> 
> I use cfdisk /dev/sda to create my /dev/sda4
> 
>  
> 
> Root1:~# fdisk -l
> 
>  
> 
> Disque /dev/sda: 1887.4 Go, 1887436800000 octets
> 
> 255 têtes, 63 secteurs/piste, 229467 cylindres Unités = cylindres de
> 16065 * 512 = 8225280 octets Sector size (logical/physical): 512 bytes /
> 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Identifiant
> de disque : 0x00000080
> 
>  
> 
> Périphérique Amorce  Début        Fin      Blocs     Id  Système
> 
> /dev/sda1               1          25      200781   83  Linux
> 
> /dev/sda2              26        3288    26210047+  83  Linux
> 
> /dev/sda3            3289        3418     1044225   82  Linux swap / Solaris
> 
> /dev/sda4            3419      229467  1815738592+  83  Linux

This is OK.

>  
> 
> Then I can't create my PV /dev/drbd0

No, you're not nearly finished!

>  
> 
> root1:~# pvcreate /dev/drbd0
> 
>   Device /dev/drbd0 not found (or ignored by filtering).
> 
>  
> 
>  
> 
> So my device is : device /dev/drbd0; and my disk is : disk /dev/sda4;
> according to my drbd config files
> 
>  
> 
> " data " is my drbd ressource name
> 
>  
> 
> Has metadata been created on your backing device, by the way?  HOW TO KNOW ?

If you had, you'd know ;-)

"drbdadm attach" should generate an error, as should "drbdadm dump-md",
if you haven't, but don't quote me on that.

>  
> 
>  
> 
> You may want to erase sda4 and start your DRBD setup from scratch, using
> 
> the existing config.  DO YOU MEAN TO REMOVE DRBD AND INSTALL?

No. Follow these steps carefully after your partition is freshly created:
http://www.drbd.org/users-guide/s-first-time-up.html

You may want to read that whole section, though:
http://www.drbd.org/users-guide/ch-configure.html

HTH,
Felix



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