[Novalug] benchmarking iSCSI

[kkauffman at headfog.com]

hdparm is primarily most effective with ide drives.  scsi drive interfaces
I thought were already mature and are not manipulated using hdparm.

Ken

> Hi,
>
>   I have setup an HP All-in-One Storage Server with an iSCSI device that
> I have mounted on a Debian machine.
>
>   Unfortunately I'm not very versed on the world of benchmarking, I have
> tried this:
>
>  svn:/etc# hdparm -tT /dev/sda1
>
> /dev/sda1:
>  Timing cached reads:   1486 MB in  1.99 seconds = 744.98 MB/sec
>  Timing buffered disk reads:   12 MB in  3.50 seconds =   3.43 MB/sec
> svn:/etc# hdparm -i /dev/sda1
>
> /dev/sda1:
>  HDIO_GET_IDENTITY failed: Invalid argument
>
>  But the -i error makes me wonder if the results are reliable
>
>  What kind of benchmarks can I get to see if it is worth to use iSCSI
> with this HP Storage server?
>
>  Thanks,
>
>  Miguel
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