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Chapter 6. Using GNBD with Red Hat GFS
Note
If you have been using GFS 5.2 or earlier and do not want to change your GNBD
setup you should specify the
was enabled by default for
runs with a noticeable performance decrease. Also, if the
the exported GNBD runs in timeout mode, using the default timeout value (the
option). For more information about the
to the
gnbd_export
6.1.1.2. Examples
This example exports device
gnbd_export -d /dev/sdb2 -e delta -c
6.1.2. Importing a GNBD on a Client
The
kernel module must be loaded on a node before it can import GNBDs. When
gnbd.ko
GNBDs are imported, device nodes are created for them in
assigned when they were exported.
6.1.2.1. Usage
Server
gnbd_import
-i
Server
Specifies a GNBD server by hostname or IP address from which to import GNBDs.
All GNBDs exported from the server are imported on the client running this com-
mand.
6.1.2.2. Example
This example imports all GNBDs from the server named
gnbd_import -i nodeA
option. Before GFS Release 5.2.1, Linux caching
-c
gnbd_export
gnbd_export
man page.
as GNBD
/dev/sdb2
. If the
option is not specified, GNBD
-c
option is not specified,
-c
command and its options, refer
with cache enabled.
delta
/dev/gnbd/
.
nodeA
61
-t
with the name
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