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Appendix C. Basic GFS Examples
Major
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8
8
8
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Table C-14. Storage Device Information
Notes
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.4.2. Kernel Modules Loaded
Each node must have the following kernel modules loaded:
•
gfs.o
•
lock_harness.o
•
lock_gulm.o
•
pool.o
C.4.3. 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:
and
pool_gfs02
poolname pool_gfs01
subpools 1
subpool 0 0 1
pooldevice 0 0 /dev/sda2
poolname pool_gfs02
subpools 1
Minor
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17
18
32
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) 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,
for the second file system. The two files should look like the following:
#Blocks
8388608
8001
8377897
8388608
8388608
instead of
/dev/sda
pool_gfs01
Name
sda
sda1
sda2
sdb
sdb1
cat /proc/partitions
), then the
/dev/sda1
command.
fdisk
for the first file system,
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