Re: [Ips] iSCSI WRITE (10)

"Sanjay Goyal" <Sanjay_Goyal@pmc-sierra.com> Mon, 14 February 2011 04:21 UTC

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Date: Sun, 13 Feb 2011 19:50:27 -0800
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Thread-Topic: [Ips] iSCSI WRITE (10)
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From: "Sanjay Goyal" <Sanjay_Goyal@pmc-sierra.com>
To: "folkert" <folkert@vanheusden.com>, <ips@ietf.org>
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Subject: Re: [Ips] iSCSI WRITE (10)
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Response should be sent once, after all the write data ( I assume it is
unsolicited data) is received.

I -> T PDU 0x01 (scsi request), opcode 0x2a (WRITE 10)
I -> T PDU 0x05 (data out)
I -> T PDU 0x05 (data out)
...
T -> I PDU 0x21 (scsi response, for each data out)


-----Original Message-----
From: ips-bounces@ietf.org [mailto:ips-bounces@ietf.org] On Behalf Of
folkert
Sent: Wednesday, February 09, 2011 11:08 PM
To: ips@ietf.org
Subject: Re: [Ips] iSCSI WRITE (10)

> Ok I'm a lot further: the whole discovery handshake (including mode
> sense, inquiries and what not) works find. Small reads/writes work too
> (the ones with data in the pdu message).
> 
> Something which is not entirely clear from the RFC is the following:
> - an initiator sends a 0x05 PDU (data-out) with data to be stored on
>   disk.
>   after processing, the target should send back a 0x21 PDU (scsi
>   response). is that correct?

Let me elaborate:

I -> T PDU 0x01 (scsi request), opcode 0x2a (WRITE 10)
T -> I PDU 0x21 (scsi response)
more data follows, so
I -> T PDU 0x05 (data out)
T -> I PDU 0x21 (scsi response, for each data out)


Folkert van Heusden

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