+Introduction
+============
+
ATA over Ethernet is a network protocol that provides simple access to
block storage on the LAN.
the aoetools.
-CREATING DEVICE NODES
+Creating Device Nodes
+=====================
Users of udev should find the block device nodes created
automatically, but to create all the necessary device nodes, use the
confusing when an AoE device is not present the first time the a
command is run but appears a second later.
-USING DEVICE NODES
+Using Device Nodes
+==================
"cat /dev/etherd/err" blocks, waiting for error diagnostic output,
like any retransmitted packets.
by sysfs counterparts. Using the commands in aoetools insulates
users from these implementation details.
- The block devices are named like this:
+ The block devices are named like this::
e{shelf}.{slot}
e{shelf}.{slot}p{part}
first shelf (shelf address zero). That's the whole disk. The first
partition on that disk would be "e0.2p1".
-USING SYSFS
+Using sysfs
+===========
Each aoe block device in /sys/block has the extra attributes of
state, mac, and netif. The state attribute is "up" when the device
There is a script in this directory that formats this information in
a convenient way. Users with aoetools should use the aoe-stat
- command.
-
- root@makki root# sh Documentation/aoe/status.sh
- e10.0 eth3 up
- e10.1 eth3 up
- e10.2 eth3 up
- e10.3 eth3 up
- e10.4 eth3 up
- e10.5 eth3 up
- e10.6 eth3 up
- e10.7 eth3 up
- e10.8 eth3 up
- e10.9 eth3 up
- e4.0 eth1 up
- e4.1 eth1 up
- e4.2 eth1 up
- e4.3 eth1 up
- e4.4 eth1 up
- e4.5 eth1 up
- e4.6 eth1 up
- e4.7 eth1 up
- e4.8 eth1 up
- e4.9 eth1 up
+ command::
+
+ root@makki root# sh Documentation/aoe/status.sh
+ e10.0 eth3 up
+ e10.1 eth3 up
+ e10.2 eth3 up
+ e10.3 eth3 up
+ e10.4 eth3 up
+ e10.5 eth3 up
+ e10.6 eth3 up
+ e10.7 eth3 up
+ e10.8 eth3 up
+ e10.9 eth3 up
+ e4.0 eth1 up
+ e4.1 eth1 up
+ e4.2 eth1 up
+ e4.3 eth1 up
+ e4.4 eth1 up
+ e4.5 eth1 up
+ e4.6 eth1 up
+ e4.7 eth1 up
+ e4.8 eth1 up
+ e4.9 eth1 up
Use /sys/module/aoe/parameters/aoe_iflist (or better, the driver
option discussed below) instead of /dev/etherd/interfaces to limit
for this purpose. You can also directly use the
/dev/etherd/discover special file described above.
-DRIVER OPTIONS
+Driver Options
+==============
There is a boot option for the built-in aoe driver and a
corresponding module parameter, aoe_iflist. Without this option,
all network interfaces may be used for ATA over Ethernet. Here is a
- usage example for the module parameter.
+ usage example for the module parameter::
modprobe aoe_iflist="eth1 eth3"
--- /dev/null
+Example of udev rules
+---------------------
+
+ .. include:: udev.txt
+ :literal:
+
+Example of udev install rules script
+------------------------------------
+
+ .. literalinclude:: udev-install.sh
+ :language: shell
+
+Example script to get status
+----------------------------
+
+ .. literalinclude:: status.sh
+ :language: shell
+
+Example of AoE autoload script
+------------------------------
+
+ .. literalinclude:: autoload.sh
+ :language: shell