[DRBD-user] DRBD metadata issue + replacing a disk

Ammar Sheikh Saleh aalishe at gmail.com
Thu Oct 15 11:32:11 CEST 2015

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


Hi all,

I have one cluster with 2 nodes in active-active - master/slave setup

I see the following error messages in the system logs:

Jan  5 11:07:23 lws1h1 kernel: EXT4-fs error (device drbd1):
ext4_mb_generate_buddy: EXT4-fs: group 3785: 27507 blocks in bitmap, 27576
in gd
Jan  5 11:07:53 lws1h1 kernel: EXT4-fs error (device drbd1):
ext4_mb_generate_buddy: EXT4-fs: group 2437: 9219 blocks in bitmap, 32546
in gd
Jan  5 11:07:53 lws1h1 kernel: EXT4-fs error (device drbd1):
ext4_mb_generate_buddy: EXT4-fs: group 2438: 9075 blocks in bitmap, 32760
in gd
Jan  5 11:07:53 lws1h1 kernel: EXT4-fs error (device drbd1):
ext4_mb_generate_buddy: EXT4-fs: group 2442: 9078 blocks in bitmap, 32768
in gd
Jan  5 20:18:27 lws1h1 kernel: JBD: Spotted dirty metadata buffer (dev =
drbd1, blocknr = 0). There's a risk of filesystem corruption in case of
system crash.
Jan  5 22:02:18 lws1h1 kernel: EXT4-fs error (device drbd1):
ext4_mb_generate_buddy: EXT4-fs: group 3795: 32532 blocks in bitmap, 29780
in gd
Jan  5 22:02:19 lws1h1 kernel: JBD: Spotted dirty metadata buffer (dev =
drbd1, blocknr = 0). There's a risk of filesystem corruption in case of
system crash.


What is the appropriate action to fix this issue


Best Regards,
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