Red Hat GFS 6.0 -, Руководство администратора

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150 Appendix C. Basic GFS Examples
driver is loaded and that it loaded without errors.
The small partition (
/dev/sda1
) is used to store the cluster configuration information. The two re-
maining partitions (
/dev/sda2
,
sdb1
) are used for the GFS file systems.
You can display the storage device information at each node in your GFS cluster by running the follow-
ing command:
cat /proc/partitions
. Depending on the hardware configuration of the GFS nodes,
the names of the devices may be different on each node. If the output of the
cat /proc/partitions
command shows only entire disk devices (for example,
/dev/sda
instead of
/dev/sda1
), then the
storage devices have not been partitioned. To partition a device, use the
fdisk
command.
C.3.2. Kernel Modules Loaded
Each node must have the following kernel modules loaded:
•
gfs.o
• lock_harness.o
• lock_gulm.o
• pool.o
C.3.3. Setup Process
The setup process for this example consists of the following steps:
1. Create pool configurations for the two file systems.
Create pool configuration files for each file system’s pool:
pool_gfs01
for the first file system,
and
pool_gfs02
for the second file system. The two files should look like the following:
poolname pool_gfs01
subpools 1
subpool 0 0 1
pooldevice 0 0 /dev/sda2
poolname pool_gfs02
subpools 1
subpool 0 0 1
pooldevice 0 0 /dev/sdb1
2. Create a pool configuration for the CCS data.
Create a pool configuration file for the pool that will be used for CCS data. The pool does not
need to be very large. The name of the pool will be
alpha_cca
. (The name of the cluster,
alpha
, followed by
_cca
). The file should look like the following:
poolname alpha_cca
subpools 1
subpool 0 0 1
pooldevice 0 0 /dev/sda1
3. Use the
pool_tool
command to create all the pools as follows:
n01#
pool_tool -c pool_gfs01.cf pool_gfs02.cf alpha_cca.cf
Pool label written successfully from pool_gfs01.cf
Pool label written successfully from pool_gfs02.cf
Pool label written successfully from alpha_cca.cf
4. Activate the pools on all nodes.