[DRBD-user] unable to mount DRBD device?

[David Huang]

I am able to mount the device if I mkfs /dev/drbdX, however it is not what i want.
I thought DRBD works on an existing filesystem??



-----Original Message-----
From: drbd-user-bounces at lists.linbit.com
[mailto:drbd-user-bounces at lists.linbit.com]On Behalf Of David Huang
Sent: Friday, April 15, 2005 9:54 AM
To: drbd-user at lists.linbit.com
Subject: RE: [DRBD-user] unable to mount DRBD device?


drbdadm state all shows Primary/Secondary
drbdadm cstate all shows Connected

I am running out of ideas, any help and suggestion is welcome


cheers

David Huang

-----Original Message-----
From: M-Ackermann [mailto:Manfred.Ackermann at t-systems.com]
Sent: Thursday, April 14, 2005 7:09 PM
To: david_huang at proware.com.tw
Subject: AW: [DRBD-user] unable to mount DRBD device?


One of my configs is:

  [acki at cm1 ~]$ cat /etc/redhat-release
  Red Hat Enterprise Linux AS release 4 (Nahant)
  [acki at cm1 ~]$ uname -r
  2.6.9-5.ELsmp
  [acki at cm1 ~]$ rpm -qa|grep -i lvm
  lvm2-2.00.31-1.0.RHEL4
  [acki at cm1 ~]$ cat /etc/drbd.conf
  {...snip...}
    on some.server.de {
      device     /dev/drbd0;
      disk       /dev/vg0/lv0;
      address    other.server.de:7788;
      meta-disk  internal;
    }
  {...snip...}

My kernel is a lower release ... For me all works fine. Just for info. What does

drbdadm state all; drbdadm cstate all

says?

Mit freundlichen Grusen
Manfred Ackermann

T-Systems 
Systems Integration
> Systemadministrator SSC NITS
Industry Business Unit Telco
T-Systems International GmbH
Utbremer Strase 90, D-28217 Bremen
Telefon: +49 421 3799-815
Telefax: +49 421 3799-169
E-Mail: prsm-eznord at t-systems.com
Internet: http://www.t-systems.com


-----Ursprungliche Nachricht-----
Von: drbd-user-bounces at lists.linbit.com [mailto:drbd-user-bounces at lists.linbit.com]Im Auftrag von David Huang
Gesendet: Donnerstag, 14. April 2005 13:00
An: drbd-user at lists.linbit.com
Betreff: RE: [DRBD-user] unable to mount DRBD device?


thanks for the quick reply! :)  Sorry I think I didn't explain the stituation clearly.

I was trying to mount the primary side's device.

I was wondering it happened becuase of LVM2, because  I am using DRBD on top of LVM2 with kernel 2.6.10


cheers

David Huang


-----Original Message-----
From: M-Ackermann [mailto:Manfred.Ackermann at t-systems.com]
Sent: Thursday, April 14, 2005 6:55 PM
To: david_huang at proware.com.tw
Subject: AW: [DRBD-user] unable to mount DRBD device?


> After syncing an existing filesystem to secondary, I try to mount the drbd device, 
> however it always shows "mount: /dev/drbd0: can't read superblock", is there 
> something wrong in my config file? the filesystem is using XFS and I am using
> DRBD 0.7.8

Remember: Only the primary side can be mounted! You're sure you've keept that in mind?

--- 
Manfred Ackermann

T-Systems 
Systems Integration
> Systemadministrator SSC NITS
Industry Business Unit Telco
T-Systems International GmbH
Utbremer Strase 90, D-28217 Bremen
Telefon: +49 421 3799-815
Telefax: +49 421 3799-169
E-Mail: prsm-eznord at t-systems.com
Internet: http://www.t-systems.com


-----Ursprungliche Nachricht-----
Von: drbd-user-bounces at lists.linbit.com [mailto:drbd-user-bounces at lists.linbit.com]Im Auftrag von David Huang
Gesendet: Donnerstag, 14. April 2005 12:51
An: drbd-user at lists.linbit.com
Betreff: [DRBD-user] unable to mount DRBD device?


hello everyone

I am experiencing some problem when I am using DRBD.
After syncing an existing filesystem to secondary, I try to mount the drbd device, however it always shows "mount: /dev/drbd0: can't read superblock", is there something wrong in my config file? the filesystem is using XFS and I am using DRBD 0.7.8

the attachment is my drbd.conf

cheers


David Huang