Two servers, one shared virtual storage over IP (aka 1/1)
1
app100:/tmp/lala# /etc/init.d/o2cb status
Module “configfs”: Loaded
Filesystem “configfs”: Mounted
Module “ocfs2_nodemanager”: Loaded
Module “ocfs2_dlm”: Loaded
Module “ocfs2_dlmfs”: Loaded
Filesystem “ocfs2_dlmfs”: Mounted
Checking cluster ocfs2: Online
Checking heartbeat: Active
app100:/tmp/lala# echo “razzia!” > autobahn
2
app200:/tmp/lala# /etc/init.d/o2cb status
Module “configfs”: Loaded
Filesystem “configfs”: Mounted
Module “ocfs2_nodemanager”: Loaded
Module “ocfs2_dlm”: Loaded
Module “ocfs2_dlmfs”: Loaded
Filesystem “ocfs2_dlmfs”: Mounted
Checking cluster ocfs2: Online
Checking heartbeat: Active
app200:/tmp/lala# cat autobahn
Razzia!
app200:/tmp/lala# echo ‘10 lahme heitzner server entdeckt und vor ort zerstört!’ » autobahn
3
app100:/tmp/lala# cat autobahn
Razzia!
10 lahme heitzner server entdeckt und vor ort zerstört!
app200:/tmp# mounted.ocfs2 /dev/drbd2
Device FS Nodes
/dev/drbd2 ocfs2 app200, app100
Info
ocfs2 patch for 2.6.18 and below: http://lists.linbit.com/pipermail/drbd-dev/attachments/20070105/3ebcad56/ocfs2-fix-bio_add_page.bin
