Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Einen wunderschönen guten Tag!
I've set up DRBD on Etch (Version: 0.7.21-4+028stab053.5) and it works
fine. However, when i want to add a resource i need to restart DRBD.
Trying to add a resource while DRBD is running makes it complain about a
missing "/dev/drbd3".
> server07:~# drbdadm adjust web05
> can not open /dev/drbd3: No such device or address
> can not open /dev/drbd3: No such device or address
> Command 'drbdsetup /dev/drbd3 disk /dev/vg1/web05 internal -1 --on-io-error=detach' terminated with exit code 20
The module is loaded:
> server07:~# lsmod | grep drbd
> drbd 147968 6
> server08:~# lsmod | grep drbd
> drbd 147968 3
I created the missing device manually:
> server07:~# ls -laht /dev/drbd*
> brw-rw---- 1 root disk 147, 3 2008-08-13 11:01 /dev/drbd3
> brw-rw---- 1 root disk 147, 2 2008-08-12 22:38 /dev/drbd2
> brw-rw---- 1 root disk 147, 1 2008-08-12 21:46 /dev/drbd1
> brw-rw---- 1 root disk 147, 0 2008-08-12 21:46 /dev/drbd0
> server08:~# ls -laht /dev/drbd*
> brw-rw---- 1 root disk 147, 3 2008-08-13 11:03 /dev/drbd3
> brw-rw---- 1 root disk 147, 0 2008-08-12 21:48 /dev/drbd0
> brw-rw---- 1 root disk 147, 1 2008-08-12 21:48 /dev/drbd1
> brw-rw---- 1 root disk 147, 2 2008-08-12 21:48 /dev/drbd2
...and the other resources seem to work fine:
> server07:~# cat /proc/drbd
> version: 0.7.21 (api:79/proto:74)
> SVN Revision: 2326 build by root at server07, 2008-03-13 01:29:12
> 0: cs:Connected st:Primary/Secondary ld:Consistent
> ns:4764016 nr:0 dw:4764016 dr:654613 al:3364 bm:0 lo:0 pe:0 ua:0 ap:0
> 1: cs:Connected st:Primary/Secondary ld:Consistent
> ns:6103952 nr:0 dw:6103952 dr:1055209 al:9111 bm:0 lo:0 pe:0 ua:0 ap:0
> 2: cs:Connected st:Primary/Secondary ld:Consistent
> ns:31651520 nr:0 dw:1108616 dr:30598890 al:479 bm:5736 lo:0 pe:0 ua:0 ap:0
> server08:~# cat /proc/drbd
> version: 0.7.21 (api:79/proto:74)
> SVN Revision: 2326 build by root at server08, 2008-03-13 01:20:54
> 0: cs:Connected st:Secondary/Primary ld:Consistent
> ns:0 nr:4765476 dw:4765476 dr:0 al:0 bm:0 lo:0 pe:0 ua:0 ap:0
> 1: cs:Connected st:Secondary/Primary ld:Consistent
> ns:0 nr:6107608 dw:6107608 dr:0 al:0 bm:0 lo:0 pe:0 ua:0 ap:0
> 2: cs:Connected st:Secondary/Primary ld:Consistent
> ns:0 nr:31651536 dw:31651536 dr:0 al:0 bm:5736 lo:0 pe:0 ua:0 ap:0
In the configugration file the sections differ in the (in my opinion)
right) lines:
> 1,2c1
> <
> < resource "web05" {
> ---
> > resource "web04" {
> 25,27c24,26
> < device /dev/drbd3;
> < disk /dev/vg1/web05;
> < address 10.10.208.7:27893;
> ---
> > device /dev/drbd2;
> > disk /dev/vg1/web04;
> > address 10.10.208.7:27892;
> 32,34c31,33
> < device /dev/drbd3;
> < disk /dev/vg1/web05;
> < address 10.10.208.8:27893;
> ---
> > device /dev/drbd2;
> > disk /dev/vg1/web04;
> > address 10.10.208.8:27892;
...and i set "minor-count" from 2 to 9 during the last restart of DRBD
to make my /dev/drbd2 work.
Why does DRBD complain about "/dev/drbd3" missing?
Grüße, Matthias