[DRBD-user] Commands freeze when accessing drbd device.

Francis SOUYRI francis.souyri at apec.fr
Wed Jan 11 08:49:34 CET 2006

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

Hello Corey,

The mke2fs command use a size of 128Mo (131072 blocks of 1024).

root at noeud1 ~]# mke2fs -j /dev/drbd2
mke2fs 1.38 (30-Jun-2005)
Filesystem label=
OS type: Linux
Block size=1024 (log=0)
Fragment size=1024 (log=0)
32768 inodes, 131072 blocks
6553 blocks (5.00%) reserved for the super user
First data block=1
Maximum filesystem blocks=67371008
16 block groups
8192 blocks per group, 8192 fragments per group
2048 inodes per group
Superblock backups stored on blocks:
        8193, 24577, 40961, 57345, 73729

Writing inode tables: done
Creating journal (4096 blocks): done
Writing superblocks and filesystem accounting information:        
**** No return ****

Best regards.


Corey Edwards wrote:

>On Tue, 2006-01-10 at 10:17 +0100, Francis SOUYRI wrote:
>>When I try to access a drbd device, the command used freeze like that:
>>[root at noeud1 ~]# drbdsetup /dev/drbd0 primary --do-what-I-say
>>[root at noeud1 ~]# dd if=/dev/zero of=/dev/drbd0
>>dd: writing to `/dev/drbd0': No space left on device
>>262145+0 records in
>>262144+0 records out
>>**** no return ****
>>    on noeud1 {
>>        device           /dev/drbd0;
>>        disk             /dev/vgroot/lvnamed;
>>        address;
>>        meta-disk        internal;
>>    }
>Remember that with internal metadata the last 128MB of the disk are
>reserved. I've never used internal much so I can't say for sure, but
>this sounds like it could easily be caused by trying to write to that
>reserved section of the disk.
>Try mke2fs again and explicitly specify the size of the disk as 128MB
>smaller than the real size.
>drbd-user mailing list
>drbd-user at lists.linbit.com

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