aoe-stat - print aoe device status report

modprobe aoe
aoe-stat
env sysfs_dir=/sys aoe-stat

The aoe-stat script collects information on ATA over Ethernet devices from sysfs.

For each AoE device the kernel has discovered, there is one row in the script's output. Each row has the following columns.

devicename

The device name is of the form eX.Y, with X being the AoE device shelf address, and Y being the AoE slot address.

size

The size of the AoE device is in gigabytes (billions of bytes).

ifname

The network interface name is printed in the third column.

status

The device status is in the last column. Possible values are up, down, and down,closewait. The "up" status means the aoe driver considers this device ready for I/O. The "down" status means the opposite. The "down,closewait" status means that some software still has the device open, and when this straggler closes the device, it will enter the "down" state.

If the sysfs_dir variable is set in the environment, it will override the default location where aoe-stat will look for sysfs, namely /sys.

In this example, the root user on a host named nai loads the aoe driver module and then prints a list of all the available aoe devices. Then he remembers to bring up the storage network interfaces, does an AoE discovery, and prints the list again. This time the list shows all the devices in shelf seven.

nai:~# modprobe aoe nai:~# aoe-stat nai:~# ifconfig eth3 up nai:~# aoe-discover nai:~# aoe-stat e0.0 10995.116GB eth0 up e0.1 10995.116GB eth0 up e0.2 10995.116GB eth0 up e1.0 1152.874GB eth0 up e7.0 370.566GB eth0 up nai:~#

aoe-discover(8), aoe-interfaces(8), aoe-mkdevs(8), aoe-mkshelf(8).

Ed L. Cashin (ecashin@coraid.com)