[DRBD-user] Buffer I/O error on device drbd0

LLLActive@GMail.com lllactive at gmail.com
Fri Dec 16 14:41:37 CET 2005

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


Hi,

sometimes (usually overnight) when I do a 
'dmesg | tail cat /proc/drbd'

I get the following report: 

Buffer I/O error on device drbd0, logical block 2
drbd0: Not in Primary state, no IO requests allowed
Buffer I/O error on device drbd0, logical block 3
drbd0: Not in Primary state, no IO requests allowed
Buffer I/O error on device drbd0, logical block 4
Buffer I/O error on device drbd0, logical block 5
Buffer I/O error on device drbd0, logical block 6
Buffer I/O error on device drbd0, logical block 7
Buffer I/O error on device drbd0, logical block 0
Buffer I/O error on device drbd0, logical block 0

If I switch primary and secondary and then back again, the problem is gone. Where should I look to find the cause?

Output:

****************
right - 10.9.8.4
****************

ReiserFS: drbd0: Using r5 hash to sort names
drbd0: Primary/Secondary --> Secondary/Secondary
drbd0: Secondary/Secondary --> Secondary/Primary
drbd0: Secondary/Primary --> Secondary/Secondary
drbd0: Secondary/Secondary --> Primary/Secondary
ReiserFS: drbd0: found reiserfs format "3.6" with standard journal
ReiserFS: drbd0: using ordered data mode
ReiserFS: drbd0: journal params: device drbd0, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
ReiserFS: drbd0: checking transaction log (drbd0)
ReiserFS: drbd0: Using r5 hash to sort names
version: 0.7.14 (api:77/proto:74)
SVN Revision: 1989 build by root at L10, 2005-11-23 18:39:16
 0: cs:Connected st:Primary/Secondary ld:Consistent
    ns:27419888 nr:692 dw:27420524 dr:246356 al:7332 bm:1288 lo:0 pe:0 ua:0 ap:0
 1: cs:Unconfigured

****************
left - 10.9.8.3
****************

Buffer I/O error on device drbd0, logical block 2
drbd0: Not in Primary state, no IO requests allowed
Buffer I/O error on device drbd0, logical block 3
drbd0: Not in Primary state, no IO requests allowed
Buffer I/O error on device drbd0, logical block 4
Buffer I/O error on device drbd0, logical block 5
Buffer I/O error on device drbd0, logical block 6
Buffer I/O error on device drbd0, logical block 7
Buffer I/O error on device drbd0, logical block 0
Buffer I/O error on device drbd0, logical block 0
version: 0.7.14 (api:77/proto:74)
SVN Revision: 1989 build by root at L10, 2005-11-25 12:55:58
 0: cs:Connected st:Secondary/Primary ld:Consistent
    ns:692 nr:27419888 dw:27420580 dr:172040 al:5 bm:1545 lo:0 pe:0 ua:0 ap:0
 1: cs:Unconfigured

:-)
Al




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