Target Reset and Logical Unit Reset

Nutter, John jnutter at cereva.com
Mon Sep 17 08:16:50 PDT 2001


* From the T10 Reflector (t10 at t10.org), posted by:
* "Nutter, John" <jnutter at cereva.com>
*
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I am trying to figure out what the expected behavior should be under the
following circumstances:
1.	Two different hosts send a Target Reset back to back.  Should
the target return a function complete to the first, last, or both Target
Resets?
2.	The same host sends a Target Reset back to back.  Should the
target return a function complete to the first, last, or both Target
Resets?
3.	A target receives a Logical Unit Reset and while processing it
the target receives a Target Reset from a different host.  Should the
target return a function complete to the Logical Unit Reset, the Target
Reset, or both?
4.	A target receives a Logical Unit Reset and while processing it
the target receives a Target Reset from the same host.  Should the
target return a function complete to the Logical Unit Reset, the Target
Reset, or both?
5.	Two different hosts send a Logical Unit Reset back to back to
the same LUN.  Should the target return a function complete to the
first, last, or both Logical Unit Resets?
6.	Two different hosts send a Logical Unit Reset back to back to
the same LUN.  Should the target return a function complete to the
first, last, or both Logical Unit Resets?
 
I would appreciate any responses.
 
Thanks
 
John J. Nutter              Phone:  (508) 787-5367
Cereva Networks Inc.        Fax:    (508) 787-5002
3 Network Drive             e-mail: jnutter at cereva.com
Marlborough, MA 01752-3083  web:    www.cereva.com
 

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<p class=MsoNormal><span class=EmailStyle15><font size=2 color=black
face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:
Arial'>I am trying to figure out what the expected behavior should be under the
following circumstances:<o:p></o:p></span></font></span></p>

<ol style='mso-margin-top-alt:0in' start=1 type=1>
 <li class=MsoNormal style='color:black;mso-margin-top-alt:12.0pt;mso-list:
     l0 level1 lfo1;tab-stops:list .5in'><span class=EmailStyle15><font size=2
     color=black face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:
     12.0pt;font-family:Arial'>Two different hosts send a Target Reset back to
     back.<span style="mso-spacerun: yes">&nbsp; </span>Should the target
     return a function complete to the first, last, or both Target Resets?<o:p></o:p></span></font></span></li>
 <li class=MsoNormal style='color:black;mso-margin-top-alt:12.0pt;mso-list:
     l0 level1 lfo1;tab-stops:list .5in'><span class=EmailStyle15><font size=2
     color=black face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:
     12.0pt;font-family:Arial'>The same host sends a Target Reset back to
     back.<span style="mso-spacerun: yes">&nbsp; </span>Should the target
     return a function complete to the first, last, or both Target Resets?<o:p></o:p></span></font></span></li>
 <li class=MsoNormal style='color:black;mso-margin-top-alt:12.0pt;mso-list:
     l0 level1 lfo1;tab-stops:list .5in'><span class=EmailStyle15><font size=2
     color=black face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:
     12.0pt;font-family:Arial'>A target receives a Logical Unit Reset and while
     processing it the target receives a Target Reset from a different host.<span
     style="mso-spacerun: yes">&nbsp; </span>Should the target return a function
     complete to the Logical Unit Reset, the Target Reset, or both?<o:p></o:p></span></font></span></li>
 <li class=MsoNormal style='color:black;mso-margin-top-alt:12.0pt;mso-list:
     l0 level1 lfo1;tab-stops:list .5in'><span class=EmailStyle15><font size=2
     color=black face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:
     12.0pt;font-family:Arial'>A target receives a Logical Unit Reset and while
     processing it the target receives a Target Reset from the same host.<span
     style="mso-spacerun: yes">&nbsp; </span>Should the target return a function
     complete to the Logical Unit Reset, the Target Reset, or both?<o:p></o:p></span></font></span></li>
 <li class=MsoNormal style='color:black;mso-margin-top-alt:12.0pt;mso-list:
     l0 level1 lfo1;tab-stops:list .5in'><span class=EmailStyle15><font size=2
     color=black face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:
     12.0pt;font-family:Arial'>Two different hosts send a Logical Unit Reset
     back to back to the same LUN.<span style="mso-spacerun: yes">&nbsp;
     </span>Should the target return a function complete to the first, last, or
     both Logical Unit Resets?<o:p></o:p></span></font></span></li>
 <li class=MsoNormal style='color:black;mso-margin-top-alt:12.0pt;mso-list:
     l0 level1 lfo1;tab-stops:list .5in'><span class=EmailStyle15><font size=2
     color=black face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:
     12.0pt;font-family:Arial'>Two different hosts send a Logical Unit Reset
     back to back to the same LUN.<span style="mso-spacerun: yes">&nbsp;
     </span>Should the target return a function complete to the first, last, or
     both Logical Unit Resets?<o:p></o:p></span></font></span></li>
</ol>

<p class=MsoNormal><span class=EmailStyle15><font size=2 color=black
face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:
Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></font></span></p>

<p class=MsoNormal><span class=EmailStyle15><font size=2 color=black
face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:
Arial'>I would appreciate any responses.<o:p></o:p></span></font></span></p>

<p class=MsoNormal><span class=EmailStyle15><font size=2 color=black
face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:
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face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:
Arial'>Thanks<o:p></o:p></span></font></span></p>

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Signature" <span style='mso-element:field-separator'></span></span></font><![endif]--><font
size=2 color=black face=Courier><span style='font-size:10.0pt;mso-bidi-font-size:
12.0pt;font-family:Courier;mso-bidi-font-family:Arial;color:black'>John J.
Nutter<span style="mso-spacerun:
yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>Phone: <span style="mso-spacerun: yes">&nbsp;</span>(508) 787-5367</span></font><font
size=2 color=black face=Courier><span style='font-size:10.0pt;mso-bidi-font-size:
12.0pt;font-family:Courier;mso-bidi-font-family:Arial;color:black;mso-color-alt:
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<p class=MsoAutoSig style='border:none;mso-border-top-alt:solid windowtext .5pt;
padding:0in;mso-padding-alt:1.0pt 0in 0in 0in'><font size=2 color=black
face=Courier><span style='font-size:10.0pt;mso-bidi-font-size:12.0pt;
font-family:Courier;mso-bidi-font-family:Arial;color:black'>Cereva Networks
Inc. <span style="mso-spacerun: yes">&nbsp;</span><span style="mso-spacerun:
yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>Fax:<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span><span style="mso-spacerun: yes">&nbsp;</span>(508)
787-5002</span></font><font size=2 color=black face=Courier><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Courier;
mso-bidi-font-family:Arial;color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoAutoSig style='border:none;mso-border-top-alt:solid windowtext .5pt;
padding:0in;mso-padding-alt:1.0pt 0in 0in 0in'><font size=2 color=black
face=Courier><span style='font-size:10.0pt;mso-bidi-font-size:12.0pt;
font-family:Courier;mso-bidi-font-family:Arial;color:black'>3 Network
Drive<span style="mso-spacerun:
yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>e-mail: jnutter at cereva.com</span></font><font size=2 color=black
face=Courier><span style='font-size:10.0pt;mso-bidi-font-size:12.0pt;
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face=Courier><span style='font-size:10.0pt;mso-bidi-font-size:12.0pt;
font-family:Courier;mso-bidi-font-family:Arial;color:black'>Marlborough, MA
01752-3083<span style="mso-spacerun: yes">&nbsp; </span>web:<span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span>www.cereva.com</span></font><font
size=2 color=black face=Courier><span style='font-size:10.0pt;mso-bidi-font-size:
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