Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
have you configured correctly the file /etc/ocfs2/cluster.conf ?
here is one example:
#######################################################################
cluster:
node_count = 2 # number of nodes in the cluster
name = clusterteste # name of the cluster
node:
ip_port = 7777 # Port number that will be used by ocfs2
ip_address = 192.168.30.1 # IP ADDR. of Node 0
number = 0 # Number that identify node 0 (must be
# a unique number for each node)
name = no1 # hostname of node zxero
cluster = clusterteste # name of the cluster that node is part
node:
ip_port = 7777
ip_address = 192.168.30.2
number = 1
name = no2
cluster = clusterteste
##############################################################
You must copy this file to all nodes that will be part of the ocfs2 cluster. in that case the two drbd 0.8 servers.
Now see the status of the cluster:
# /etc/init.d/o2cb status
the results will be like:
Module "configfs": Not loaded
Filesystem "configfs": Not mounted
Module "ocfs2_nodemanager": Not loaded
Module "ocfs2_dlm": Not loaded
Module "ocfs2_dlmfs": Not loaded
Filesystem "ocfs2_dlmfs": Not mounted
Load the modules:
# /etc/init.d/o2cb load
Loading module "configfs": OK
Creating directory '/config': OK
Mounting configfs filesystem at /config: OK
Loading module "ocfs2_nodemanager": OK
Loading module "ocfs2_dlm": OK
Loading module "ocfs2_dlmfs": OK
Mounting ocfs2_dlmfs filesystem at /dlm: OK
Turn the cluster online:
# /etc/init.d/o2cb online clustertest
Starting cluster clusterteste: OK
If you want to turn the cluster offline:
# /etc/init.d/o2cb offline clustertest
Cleaning heartbeat on clusterteste: OK
Stopping cluster clusterteste: OK
if you want to unload the modules:
# /etc/init.d/o2cb unload
Unmounting ocfs2_dlmfs filesystem: OK
Unloading module "ocfs2_dlmfs": OK
Unmounting configfs filesystem: OK
Unloading module "configfs": OK
Configuring OCFS2 cluster services to start in the boot process:
# /etc/init.d/o2cb configure
Configuring the O2CB driver.
This will configure the on-boot properties of the O2CB driver.
The following questions will determine whether the driver is loaded on
boot. The current values will be shown in brackets ('[]'). Hitting
<ENTER> without typing an answer will keep that current value. Ctrl-C
will abort.
Load O2CB driver on boot (y/n) [n]: y
Cluster to start on boot (Enter "none" to clear) []: clusterteste
Writing O2CB configuration: OK
Cluster clusterteste already online
IMPORTANT: TO MOUNT THE DEVICE THE OCFS2 CLUSTER IN THE TWO MACHINES MUST BE ONLINE!
Information translated from portuguese and extracted from:
http://guialivre.governoeletronico.gov.br/seminario/index.php/DocumentacaoTecnologiasDRBDOCFS2#OCFS2
Leonardo Rodrigues de Mello
-----Original Message-----
From: drbd-user-bounces at lists.linbit.com on behalf of Kilian CAVALOTTI
Sent: qui 17/8/2006 11:48
To: ocfs2-users at oss.oracle.com; drbd-user at linbit.com
Cc:
Subject: [DRBD-user] OCFS2 over DRBDv8
Hi all,
I'm new to OCFS2, but not so new to DRBD. I'd like to use the new
primary/primary feature of DRBDv8 to create a shared storage space and
concurrently access it from multiple clients, using OCFS2.
I configured two hosts with DRBD, allowed two primaries, and successfully
made each partition primary.
# cat /proc/drbd
version: 8.0pre4 (api:84/proto:82)
SVN Revision: 2375M build by root at moby, 2006-08-17 15:54:17
0: cs:Connected st:Primary/Primary ds:UpToDate/UpToDate r---
ns:0 nr:1398278 dw:1398278 dr:98 al:0 bm:1895 lo:0 pe:0 ua:0 ap:0
resync: used:0/7 hits:86007 misses:1381 starving:0 dirty:0
changed:1381
act_log: used:0/257 hits:0 misses:0 starving:0 dirty:0 changed:0
1: cs:Unconfigured
I tried to format the volume with a traditionnal filesystem, and
successfully mounted it on both nodes.
I then tried with ocfs2. On the first node, mkfs and mount went without a
hitch, but on the second one, I systematically get an error when I try to
do anything on the volume (fsck'ing, starting ocfs2-heartbeat, mounting,
etc.). dmesg shows the following,
drbd0: role( Secondary -> Primary )
drbd0: Writing meta data super block now.
(6672,0):o2hb_setup_one_bio:290 ERROR: Error adding page to bio i = 1,
vec_len = 4096, len = 0
, start = 0
(6672,0):o2hb_read_slots:385 ERROR: status = -5
(6672,0):o2hb_populate_slot_data:1279 ERROR: status = -5
(6672,0):o2hb_region_dev_write:1379 ERROR: status = -5
It seems that the heartbeat process can't write to the device, for an
unknown reason:
open("/sys/kernel/config/cluster", O_RDONLY|O_NONBLOCK|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0
fcntl(4, F_SETFD, FD_CLOEXEC) = 0
getdents64(4, /* 3 entries */, 4096) = 88
getdents64(4, /* 0 entries */, 4096) = 0
close(4) = 0
mkdir("/sys/kernel/config/cluster/ocfs2_cluster/heartbeat/D6F76726AFE4472CBF0650A1FEF09135",
0755) = 0
open("/sys/kernel/config/cluster/ocfs2_cluster/heartbeat/D6F76726AFE4472CBF0650A1FEF09135/block_bytes",
O_WRONLY) = 4
write(4, "512", 3) = 3
close(4) = 0
open("/sys/kernel/config/cluster/ocfs2_cluster/heartbeat/D6F76726AFE4472CBF0650A1FEF09135/start_block",
O_WRONLY) = 4
write(4, "2176", 4) = 4
close(4) = 0
open("/sys/kernel/config/cluster/ocfs2_cluster/heartbeat/D6F76726AFE4472CBF0650A1FEF09135/blocks",
O_WRONLY) = 4
write(4, "255", 3) = 3
close(4) = 0
open("/dev/drbd0", O_RDWR) = 4
open("/sys/kernel/config/cluster/ocfs2_cluster/heartbeat/D6F76726AFE4472CBF0650A1FEF09135/dev",
O_WRONLY) = 5
write(5, "4", 1) = -1 EIO (Input/output error)
close(5) = 0
close(4) = 0
rmdir("/sys/kernel/config/cluster/ocfs2_cluster/heartbeat/D6F76726AFE4472CBF0650A1FEF09135")
= 0
semop(0, 0x7fff930bfe30, 1) = 0
close(3) = 0
write(2, "mkfs.ocfs2", 10mkfs.ocfs2) = 10
write(2, ": ", 2: ) = 2
write(2, "I/O error on channel", 20I/O error on channel) = 20
write(2, " ", 1 ) = 1
write(2, "while initializing the dlm", 26while initializing the dlm) = 26
write(2, "\r\n", 2
I can't figure if it's a DRBD- or a OCFS2-related issue, and I'd take any
enlightenment with gratitude.
BTW, I use amd64, debian-provided 2.6.17 kernel, drbd8-module-source
8.0pre4-1 (I tried SVN trunk too), and ocfs2-tools 1.2.1-1.
Thanks in advance,
--
Kilian CAVALOTTI Administrateur réseaux et systèmes
UPMC / CNRS - LIP6 (C870)
8, rue du Capitaine Scott Tel. : 01 44 27 88 54
75015 Paris - France Fax. : 01 44 27 70 00
_______________________________________________
drbd-user mailing list
drbd-user at lists.linbit.com
http://lists.linbit.com/mailman/listinfo/drbd-user
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20060817/c039779b/attachment.htm>