I saw this post by Sam Hopkins indicating that there would eventually
be support for aoe in smartctl.  That was in 2004.
http://osdir.com/ml/linux.utilities.smartmontools/2004-12/msg00003.html

I'm running smartmontools release 5.38 dated 2008/03/10 at 10:44:07
GMT, but the only options listed for -d are ata, scsi, marvell, sat,
3ware,N, hpt,L/M/N cciss,N.  Am I missing something or did aoe never
make it in to my smartmontools?

I also found 
http://sourceforge.net/mailarchive/forum.php?thread_name=1293803789%40web.de&forum_name=aoetools-discuss
but other than these, the internet has been somewhat quiet.

[r...@zero ~]# hdparm -V
hdparm v8.6
[r...@zero ~]# hdparm -Tt  /dev/etherd/e9.0
/dev/etherd/e9.0:
 Timing cached reads:   808 MB in  2.00 seconds = 404.02 MB/sec
 Timing buffered disk reads:   34 MB in  3.12 seconds =  10.91 MB/sec
[r...@zero ~]# hdparm -i /dev/etherd/e9.0
/dev/etherd/e9.0:
 HDIO_GET_IDENTITY failed: Inappropriate ioctl for device
[r...@zero ~]#

I wouldn't expect smartctl or hdparm to work right if I were exporting
lvm or raid or anything other than an actual disk.  But I am,
exporting an actual disk.  I didn't expect the cached reads to exceed
the link speed of the Ethernet I'm using.  Perhaps something is wrong.
 Can anyone point me in the right direction to get hdparm and smartctl
to properly interact with AoE targets?

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