vblade, vbladed - export data via ATA over Ethernet
vblade [ -m mac[,mac...] ] shelf slot netif filename
command starts a process that uses raw sockets to perform ATA
over Ethernet, acting like a virtual EtherDrive (R) blade.
script can be used to daemonize the vblade process, detaching
it from your terminal and sending its output to the system logs.
- This should be the shelf address (major AoE address) of the
AoE device to create.
- This should be the slot address (minor AoE address) of the
AoE device to create.
- The name of the ethernet network interface to use for AoE
- The name of the regular file or block device to
- The -b flag takes an argument, the advertised buffer count,
specifying the maximum number of outstanding messages the server can queue
- The -d flag selects O_DIRECT mode for accessing the
underlying block device.
- The -s flag selects O_SYNC mode for accessing the
underlying block device, so all writes are committed to disk before
returning to the client.
- The -r flag restricts the export of the device to be
- The -m flag takes an argument, a comma separated list of
MAC addresses permitted access to the vblade. A MAC address can be
specified in upper or lower case, with or without colons.
- The -o flag takes an argument, the number of sectors at the
beginning of the exported file that are excluded from AoE export (default
- The -l flag takes an argument, the number of sectors to
export. Defaults to the file size in sectors minus the offset.
In this example, the root user on a host named nai
exports a file named
"3TB" to the LAN on eth0 using AoE shelf address 11 and slot address
1. The process runs in the foreground. Using vbladed
resulted in the process running as a daemon in the background.
nai:~# vblade 11 1 eth0 /data/3TB
Users of Jumbo frames should read the README file distributed with vblade
to learn about a workaround for kernel buffering limitations.
At least one AoE initiator (WinAoE) has been found to enforce legacy CHS
geometry for drives by discarding sectors. You should ensure that the
underlaying regular file or block device size is a multiple of 8225280 bytes
(255 heads, 63 sectors/track, 512 bytes/sector) if you encounter filesystem
Please report bugs to the aoetools-discuss mailing list.
Brantley Coile (firstname.lastname@example.org)