ATAOverEthernet
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With the 'universe' repository enabled.. |
ContentsBRTableOfContents |
Introduction
There is now a kernel module (aoe), tools (aoetools) and server software (vblade) whoch allows anyone to set up an ATA over Ethernet storage network... and it is very easy to do in Ubuntu (currently Dapper 6.06 LTS).
WARNING: These commands need to be run with root privilages (sudo su). Do this at your own risk.
Required Packages
With the 'universe' repository enabled..
On the Ubuntu host that you wish to be the disk server:
(server)# apt-get install vblade
On the Ubuntu host that you wish to mount the disk on:
(client)# apt-get install aoe-tools
To Configure
To test that everything is working correctly, we created and used a 1 Mbyte file (vblade0). Any other block device could be used instead.
On the server
(server)# dd if=/dev/zero of=vblade0 count=1 bs=1M (server)# vblade 1 1 eth0 vblade0 ioctl returned 0 1048576 bytes pid 25000: e1.1, 2048 sectors
The deamon ('vbladed') could be used instead of 'vblade', which detaches the process from the console and send log messages to the system logs.
On the client:
(client)# sys_dir=/sys aoe-stat e1.1 0.001GB eth0 up
Using AoE
Insert the module into the linux kernel.
(client)# modprobe aoe
This can automatically be performed at startup, by entering a line into the /etc/modules file.
The device and directory automatially get created when the aoe module is inserted into the kernel.
(client)# aoe-interfaces eth0 (client)# aoe-discover
The block device is then located in /dev/etherd/e1.1 and can be treated like any other block device.
Create a filesystem:
(client)# mke2fs /dev/etherd/e1.1
Create a mount point and mount the file system:
(client)# mkdir /var/tmp/mnt (client)# mount /dev/etherd/e1.1 /var/tmp/mnt
This can be made to automatically mount on reboot, by entering a configuration line in /etc/fstab (untested).
References
http://www.coraid.com/support/linux/EtherDrive-2.6-HOWTO.html
ATAOverEthernet (last edited 2008-08-06 16:59:42 by localhost)