Re: [Iscsitarget-devel] Is that possible to identify which files I am reading at iscsi commands?

[felipe g. <fe...@us...>]

ok, but just one more try.....
If when I copy 5 files to my iSCSI driver, could I identify which blocks
are for each one file, at the moment of the copy?
I am asking that because this paper
<http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=5380866&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D5380866>
says about metadata at iSCSI. Or maybe they are using other metadata....


On Mon, Aug 18, 2014 at 1:11 PM, Donald Williams <don...@gm...>
wrote:

> Chris is correct.  There's nothing in iSCSI or SCSI for that matter that
> would tell you what file is opened.  That is up to the OS that is handling
> that volume.  SCSI at its most basic is about requesting data or sending
> data between an initiator and target.   iSCSI is about doing that same
> thing over a network based connection.
>
> Don
>
>
>
> On Mon, Aug 18, 2014 at 11:39 AM, Chris Siebenmann <ck...@cs...>
> wrote:
>
>> > I am trying to identify whitch file I am openning at my iscsi driver
>> > through the iscsi commands. Is that possible?
>>
>>  If I understand your question correctly, the answer is effectively
>> no. iSCSI is a block-level protocol, just like local disk access at
>> the hardware level, and so the protocol carries no metadata about
>> what the blocks being read or written actually are or why the client
>> (initiator) is writing them.
>>
>>         - cks
>>
>>
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>