<span style=" font-size:10pt;font-family:sans-serif">I concur with Curtis
and Paul.</span><br><span style=" font-size:10pt;font-family:sans-serif"><br>Kevin D. Butt<br>SCSI Architect, Tape Firmware, Data Retention Infrastructure<br>T10 Standards<br>MS 6TYA, 9000 S. Rita Rd., Tucson, AZ 85744<br>Tel: 520-799-5280<br>Fax: 520-799-2723 (T/L:321)<br>Email address: kdbutt@us.ibm.com<br><br>=========== Interesting Links ===========<br>[ IBM Tape Storage ] &nbsp;</span><a href="https://www.ibm.com/it-infrastructure/storage/tape"><span style=" font-size:10pt;font-family:sans-serif">https://www.ibm.com/it-infrastructure/storage/tape</span></a><span style=" font-size:10pt;font-family:sans-serif"><br>[ SSIC - HBA/OS/Switch/Product interoperation ] </span><a href="https://www-304.ibm.com/systems/support/storage/ssic/interoperability.wss"><span style=" font-size:10pt;font-family:sans-serif">https://www-304.ibm.com/systems/support/storage/ssic/interoperability.wss</span></a><span style=" font-size:10pt;font-family:sans-serif"><br>[ LTO &amp; 3592 ISV Support Matrix ] </span><a href="www.ibm.com/systems/resources/lto_isv_matrix.pdf"><span style=" font-size:10pt;font-family:sans-serif">www.ibm.com/systems/resources/lto_isv_matrix.pdf</span></a><span style=" font-size:10pt;font-family:sans-serif"><br>[ LTO SCSI Reference ] </span><a href="http://www-01.ibm.com/support/docview.wss?uid=ssg1S7003556"><span style=" font-size:10pt;font-family:sans-serif">http://www-01.ibm.com/support/docview.wss?uid=ssg1S7003556</span></a><span style=" font-size:10pt;font-family:sans-serif"><br>[ 3592 SCSI Reference ] </span><a href="http://www-01.ibm.com/support/docview.wss?uid=ssg1S7003248"><span style=" font-size:10pt;font-family:sans-serif">http://www-01.ibm.com/support/docview.wss?uid=ssg1S7003248</span></a><span style=" font-size:10pt;font-family:sans-serif"><br>===================================</span><br><br><br><br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">From:
&nbsp; &nbsp; &nbsp; &nbsp;</span><span style=" font-size:9pt;font-family:sans-serif">Paul
Suhler &lt;Paul.Suhler@kioxia.com&gt;</span><br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">To:
&nbsp; &nbsp; &nbsp; &nbsp;</span><span style=" font-size:9pt;font-family:sans-serif">&quot;Ballard,
Curtis C (HPE Storage)&quot; &lt;curtis.ballard@hpe.com&gt;, Ralph Weber
&lt;Ralph.Weber@wdc.com&gt;, &quot;t10@t10.org&quot; &lt;t10@t10.org&gt;</span><br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">Date:
&nbsp; &nbsp; &nbsp; &nbsp;</span><span style=" font-size:9pt;font-family:sans-serif">07/17/2020
09:19</span><br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">Subject:
&nbsp; &nbsp; &nbsp; &nbsp;</span><span style=" font-size:9pt;font-family:sans-serif">[EXTERNAL]
Re: [T10] Revisiting the RMB (Removable Medium) bit definition</span><br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">Sent
by: &nbsp; &nbsp; &nbsp; &nbsp;</span><span style=" font-size:9pt;font-family:sans-serif">t10-bounces@t10.org</span><br><hr noshade><br><br><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;color:#004080;font-family:Calibri">I
agree with Curtis about the need to be able to report NOT READY, MEDIUM
NOT PRESENT. I&#8217;ve worked on both SSC and SBC devices like that.</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;color:#004080;font-family:Calibri">&nbsp;</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;color:#004080;font-family:Calibri">Paul</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;color:#004080;font-family:Calibri">Kioxia</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;color:#004080;font-family:Calibri">&nbsp;</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"><b>From:</b>t10-bounces@t10.org &lt;t10-bounces@t10.org&gt; <b>On Behalf Of </b>Ballard,
Curtis C (HPE Storage)<b><br>Sent:</b> Friday, July 17, 2020 9:54 AM<b><br>To:</b> Ralph Weber &lt;Ralph.Weber@wdc.com&gt;; t10@t10.org<b><br>Subject:</b> Re: [T10] Revisiting the RMB (Removable Medium) bit definition</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">&nbsp;</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">Ralph,</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">&nbsp;</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">That
bit is used with tape drives and was used with SCSI magneto optical drives,
DVD drives, etc. &nbsp;</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">&nbsp;</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">Even
system I&#8217;ve used with that bit set to one, and I&#8217;ve worked with several
devices from different manufacturers that set that bit to one, only use
it in reference to the media with no device server disruption other than
the expected Unit Attention condition transitions as the media is removed
and re-loaded.</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">&nbsp;</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">SCSI
devices should only set that bit to one if they are able to report an 02h/3Ah/00h
&#8211; NOT READY, MEDIUM NOT PRESENT</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">&nbsp;</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">Curtis
Ballard</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">Hewlett
Packard Enterprise</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">&nbsp;</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"><b>From:</b></span><a href="mailto:t10-bounces@t10.org"><span style=" font-size:11pt;color:#0082bf;font-family:Calibri"><u>t10-bounces@t10.org</u></span></a><span style=" font-size:11pt;font-family:Calibri">&lt;</span><a href="mailto:t10-bounces@t10.org"><span style=" font-size:11pt;color:#0082bf;font-family:Calibri"><u>t10-bounces@t10.org</u></span></a><span style=" font-size:11pt;font-family:Calibri">&gt;
<b>On Behalf Of </b>Ralph Weber<b><br>Sent:</b> Thursday, July 16, 2020 5:27 PM<b><br>To:</b> </span><a href="mailto:t10@t10.org"><span style=" font-size:11pt;color:#0082bf;font-family:Calibri"><u>t10@t10.org</u></span></a><span style=" font-size:11pt;font-family:Calibri"><b><br>Subject:</b> [T10] Revisiting the RMB (Removable Medium) bit definition</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">&nbsp;</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">Regarding
the Standard INQUIRY data RMB bit, SPC-6 r02 says&#8230;</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">&#8220;A
removable medium (</span><span style=" font-size:9pt;font-family:Calibri">RMB</span><span style=" font-size:11pt;font-family:Calibri">)
bit set to zero indicates that the medium is not removable. A </span><span style=" font-size:9pt;font-family:Calibri">RMB
</span><span style=" font-size:11pt;font-family:Calibri">bit set to one
indicates that the medium is removable.&#8221;</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">&nbsp;</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">An
interesting debate has developed regarding whether a USB &#8220;memory stick&#8221;
is an </span><span style=" font-size:9pt;font-family:Calibri">RMB</span><span style=" font-size:11pt;font-family:Calibri">=0
or an </span><span style=" font-size:9pt;font-family:Calibri">RMB</span><span style=" font-size:11pt;font-family:Calibri">=1
device.</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">&nbsp;</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">One
wag has suggested that the RMB bit definition be conditionalized on the
presence/absence of a coincident Logical Unit Reset condition or I_T Nexus
Loss condition, something along the lines of&#8230;</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">&#8220;A
removable medium (</span><span style=" font-size:9pt;font-family:Calibri">RMB</span><span style=" font-size:11pt;font-family:Calibri">)
bit set to zero indicates that the medium is not removable </span><span style=" font-size:11pt;color:#0082bf;font-family:Calibri"><u>without
resulting in a Logical Unit Reset condition (see SAM-6) or an I_T Nexus
Loss condition (see SAM-6)</u></span><span style=" font-size:11pt;font-family:Calibri">.
A </span><span style=" font-size:9pt;font-family:Calibri">RMB </span><span style=" font-size:11pt;font-family:Calibri">bit
set to one indicates that the medium is removable </span><span style=" font-size:11pt;color:#0082bf;font-family:Calibri"><u>with
no concurrent Logical Unit Reset condition or I_T Nexus Loss condition</u></span><span style=" font-size:11pt;font-family:Calibri">.&#8221;</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">&nbsp;</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">How
says the T10 body politic?</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">&nbsp;</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">Thanks,</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">&nbsp;</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">.Ralph</span><tt><span style=" font-size:10pt">_______________________________________________<br>T10 mailing list<br>T10@t10.org<br></span></tt><a href="https://www.t10.org/mailman/listinfo/t10"><tt><span style=" font-size:10pt">https://www.t10.org/mailman/listinfo/t10</span></tt></a><tt><span style=" font-size:10pt"><br></span></tt></p><p style="margin-top:0px;margin-Bottom:0px"></p><p style="margin-top:0px;margin-Bottom:0px"></p><BR>