I am not sure and its possible that I am thinking out of context, but anyway I just understood that you want to test some i/o on exported block devices, If its like that then please find my reply as follows. Maybe It can help you somewhwere.
On Fri, Mar 27, 2009 at 1:22 AM, Billy Crook <billycr...@gmail.com> wrote: > 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. >>>>> You are right. I have not used smartctl, so I can't comment on it. But I have used hdparam. Believe me to measure disk i/o performance, never trust on a single tool like hdparam or iostat. This will always give you varying results. All the things depend on kind of data read write & kind of devices you are using + what is the environment of your machine on which you are performing these i/o' s. > 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. >>>> Definitely , read opertaion can't give you the accurate results coz data can be read from buffer chache. So, prefer to test always the write operation via a tool like iozone, bonnie, iometer, fio. > Perhaps something is wrong. > Can anyone point me in the right direction to get hdparm and smartctl > to properly interact with AoE targets? >>>>> Try to achieve the similar results by some smart tools like iometer, bonnie, fio, bonnie++, iozone etc. > > > > ------------------------------------------------------------------------------ > _______________________________________________ > Aoetools-discuss mailing list > Aoetools-discuss@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/aoetools-discuss >
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