Kernel Modules Loaded; Setup Process - Red Hat GFS 6.0 Administrator's Manual

Appendix C. Basic GFS Examples
Major
8
8
8
8
8
Table C-19. Storage Device Information
Notes
The storage must only be visible on the GNBD server node. The GNBD server node will ensure that
the storage is visible to the GFS cluster nodes via the GNBD protocol.
For shared storage devices to be visible to the nodes, it may be necessary to load an appropriate
device driver. If the shared storage devices are not visible on each node, confirm that the device
driver is loaded and that it loaded without errors.
The small partition (
maining partitions (/
You can display the storage device information at each node in your GFS cluster by running the follow-
ing command:
cat /proc/partitions
the names of the devices may be different on each node. If the output of the
command shows only entire disk devices (for example,
storage devices have not been partitioned. To partition a device, use the
C.5.2. Kernel Modules Loaded
Each node must have the following kernel modules loaded:
• gfs.o
• gnbd.o
•
lock_harness.o
•
lock_gulm.o
• pool.o
C.5.3. Setup Process
The setup process for this example consists of the following steps:
1. Create and export GNBD devices.
Create and export a GNBD device for the storage on the GNBD server (
for the GFS file systems and CCA device. In the following example,
used for the pool of the first GFS file system,
GFS file system, and
Minor
16
17
18
32
33
) is used to store the cluster configuration information. The two re-
/dev/sda1
, ) are used for the GFS file systems.
dev/sda2 sdb1
. Depending on the hardware configuration of the GFS nodes,
is the device used for the CCA device.
cca
#Blocks
8388608
8001
8377897
8388608
8388608
instead of
/dev/sda
is the device used for the pool of the second
gfs02
Name
sda
sda1
sda2
sdb
sdb1
cat /proc/partitions
), then the
/dev/sda1
command.
fdisk
) to be used
gnbdsrv
is the GNBD device
gfs01
161