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Curiosity question...&nbsp; Has anyone found why this practice is happening and/or being requested??</div>
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Just wondering if Windows or iOS provide a different experience when the bit is set?<br>
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<span style="color:#0B5394">&nbsp;</span><span style="color:#0B5394"></span>
<div><span style="color:#0B5394"><span>---------------------------------------------</span></span></div>
<div><span style="color:#0B5394"><span>Curtis E. Stevens</span></span></div>
<div><span style="color:#0B5394"><span>Technologist</span></span></div>
<div><span style="color:#0B5394"><span>Seagate Technology</span></span></div>
<div><span style="color:#0B5394"><span><br>
</span></span></div>
<div><span style="color:#0B5394"><span>E-Mail: Curtis.Stevens@Seagate.com</span><br>
</span></div>
<div><span style="color:#0B5394">Phone: 949-307-5050</span></div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> t10-bounces@t10.org &lt;t10-bounces@t10.org&gt; on behalf of Ralph Weber &lt;Ralph.Weber@wdc.com&gt;<br>
<b>Sent:</b> Thursday, July 30, 2020 4:34 AM<br>
<b>To:</b> t10@t10.org &lt;t10@t10.org&gt;<br>
<b>Subject:</b> Re: [T10] Revisiting the RMB (Removable Medium) bit definition</font>
<div>&nbsp;</div>
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<p class="x_MsoNormal">Kevin,</p>
<p class="x_MsoNormal">Having slept on the problem, it’s become apparent that symmetry requires the addition of “is not able to be” to the first sentence, a la…</p>
<p class="x_MsoNormal"><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif; color:black">A removable medium (<span style="font-variant:small-caps">rmb)
</span>bit set to zero indicates that the medium is </span><s><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif; color:red">not removable</span></s><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif; color:black">
</span><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif; color:blue">able to be removed only if that removal is accompanied by the breaking of the I_T nexus connection between the application client to the device server.&nbsp;
</span><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif; color:black">A
<span style="font-variant:small-caps">rmb </span>bit set to one indicates that the medium is
</span><s><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif; color:red">removable</span></s><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif; color:blue"> able to be removed without affecting the I_T nexus between the application client
 and the device server.</span></p>
<p class="x_MsoNormal">&nbsp;</p>
<p class="x_MsoNormal">All the best, .Ralph</p>
<p class="x_MsoNormal">&nbsp;</p>
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<p class="x_MsoNormal"><b>From:</b> John Geldman &lt;John.Geldman@kioxia.com&gt; <br>
<b>Sent:</b> Thursday, July 30, 2020 12:37 AM<br>
<b>To:</b> Ralph Weber &lt;Ralph.Weber@wdc.com&gt;; t10@t10.org<br>
<b>Subject:</b> RE: [T10] Revisiting the RMB (Removable Medium) bit definition</p>
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<p class="x_MsoNormal">&nbsp;</p>
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<p class="x_MsoNormal" style="line-height:12.0pt; background:#FFEB9C"><b><span style="font-size:10.0pt; color:red">CAUTION:</span></b><b><span style="font-size:10.0pt; color:black"> This email originated from outside of Western Digital. Do not click on links
 or open attachments unless you recognize the sender and know that the content is safe.</span></b></p>
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<p class="x_MsoNormal">&nbsp;</p>
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<p class="x_MsoNormal"><span style="color:#1F497D">Ralph, </span></p>
<p class="x_MsoNormal"><span style="color:#1F497D">&nbsp;</span></p>
<p class="x_MsoNormal"><span style="color:#1F497D">I seem to be missing something.
</span></p>
<p class="x_MsoNormal"><span style="color:#1F497D">&nbsp;</span></p>
<p class="x_MsoNormal"><span style="color:#1F497D">From my world view RMB was/is about removable media, not removable devices. We still want it to be. If we declare that rmb set to zero means not able to remove the media, then to remove the media, the device
 server has to be removed, i.e., disconnected. </span></p>
<p class="x_MsoNormal"><span style="color:#1F497D">&nbsp;</span></p>
<p class="x_MsoNormal"><span style="color:#1F497D">The statement that removal of a device breaks the connection to the host needs to be said?
</span></p>
<p class="x_MsoNormal"><span style="color:#1F497D">&nbsp;</span></p>
<p class="x_MsoNormal"><span style="color:#1F497D">Isn’t the problem folks thinking RMB was/is about removable devices?
</span></p>
<p class="x_MsoNormal"><span style="color:#1F497D">&nbsp;</span></p>
<p class="x_MsoNormal"><span style="color:#1F497D">John</span></p>
<p class="x_MsoNormal"><span style="color:#1F497D">&nbsp;</span></p>
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<p class="x_MsoNormal"><b>From:</b> <a href="mailto:t10-bounces@t10.org">t10-bounces@t10.org</a> &lt;<a href="mailto:t10-bounces@t10.org">t10-bounces@t10.org</a>&gt;
<b>On Behalf Of </b>Ralph Weber<br>
<b>Sent:</b> Wednesday, July 29, 2020 6:45 PM<br>
<b>To:</b> <a href="mailto:t10@t10.org">t10@t10.org</a><br>
<b>Subject:</b> Re: [T10] Revisiting the RMB (Removable Medium) bit definition</p>
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<p class="x_MsoNormal">&nbsp;</p>
<p class="x_MsoNormal">IMHO The absence of any statement about the I_T nexus in the RMB=0 case severely limits the value of the change.</p>
<p class="x_MsoNormal">&nbsp;</p>
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<p class="x_MsoNormal"><b>From:</b> John Geldman &lt;<a href="mailto:John.Geldman@kioxia.com">John.Geldman@kioxia.com</a>&gt;
<br>
<b>Sent:</b> Wednesday, July 29, 2020 8:27 PM<br>
<b>To:</b> Ralph Weber &lt;<a href="mailto:Ralph.Weber@wdc.com">Ralph.Weber@wdc.com</a>&gt;;
<a href="mailto:t10@t10.org">t10@t10.org</a><br>
<b>Subject:</b> RE: [T10] Revisiting the RMB (Removable Medium) bit definition</p>
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<p class="x_MsoNormal">&nbsp;</p>
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<p class="x_MsoNormal" style="line-height:12.0pt; background:#FFEB9C"><b><span style="font-size:10.0pt; color:red">CAUTION:</span></b><b><span style="font-size:10.0pt; color:black"> This email originated from outside of Western Digital. Do not click on links
 or open attachments unless you recognize the sender and know that the content is safe.</span></b></p>
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<p class="x_MsoNormal">&nbsp;</p>
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<p class="x_MsoNormal"><span style="color:#1F497D">The observations are all correct, but they do obfuscate. Does this work?</span></p>
<p class="x_MsoNormal"><span style="color:#1F497D">&nbsp;</span></p>
<p class="x_MsoNormal"><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif">A removable medium (rmb) bit set to zero indicates that the medium is not
<s><span style="color:red">removable </span></s><span style="color:blue">able to be removed from the device server.
</span>A rmb bit set to one indicates that the medium is <s><span style="color:red">removable</span></s><span style="color:blue">able to be removed from the device server. If the rmb bit is set to one and the medium is removed, then the I_T nexus between the
 application client and the device server, if any, is not affected.</span></span><span style="color:#1F497D"></span></p>
<p class="x_MsoNormal"><span style="color:#1F497D">&nbsp;</span></p>
<p class="x_MsoNormal"><span style="color:#1F497D">John</span></p>
<p class="x_MsoNormal"><span style="color:#1F497D">&nbsp;</span></p>
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<p class="x_MsoNormal"><b>From:</b> <a href="mailto:t10-bounces@t10.org">t10-bounces@t10.org</a> &lt;<a href="mailto:t10-bounces@t10.org">t10-bounces@t10.org</a>&gt;
<b>On Behalf Of </b>Ralph Weber<br>
<b>Sent:</b> Wednesday, July 29, 2020 5:52 PM<br>
<b>To:</b> <a href="mailto:t10@t10.org">t10@t10.org</a><br>
<b>Subject:</b> Re: [T10] Revisiting the RMB (Removable Medium) bit definition</p>
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<p class="x_MsoNormal">&nbsp;</p>
<p class="x_MsoNormal">I agree that the two sentence are not symmetrical, however… I cannot find a way to make them symmetrical that does not involve an excess of Rube Goldberg English that obfuscates more than it clarifies.</p>
<p class="x_MsoNormal">&nbsp;</p>
<p class="x_MsoNormal">Please feel free to augment the suggestion made below with detailed text changes.</p>
<p class="x_MsoNormal">&nbsp;</p>
<p class="x_MsoNormal">All the best, .Ralph</p>
<p class="x_MsoNormal">&nbsp;</p>
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<p class="x_MsoNormal"><b>From:</b> Kevin D Butt &lt;<a href="mailto:kdbutt@us.ibm.com">kdbutt@us.ibm.com</a>&gt;
<br>
<b>Sent:</b> Wednesday, July 29, 2020 3:42 PM<br>
<b>To:</b> Ralph Weber &lt;<a href="mailto:Ralph.Weber@wdc.com">Ralph.Weber@wdc.com</a>&gt;<br>
<b>Cc:</b> <a href="mailto:t10@t10.org">t10@t10.org</a><br>
<b>Subject:</b> RE: [T10] Revisiting the RMB (Removable Medium) bit definition</p>
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<p class="x_MsoNormal">&nbsp;</p>
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<p class="x_MsoNormal" style="line-height:12.0pt; background:#FFEB9C"><b><span style="font-size:10.0pt; color:red">CAUTION:</span></b><b><span style="font-size:10.0pt; color:black"> This email originated from outside of Western Digital. Do not click on links
 or open attachments unless you recognize the sender and know that the content is safe.</span></b></p>
</div>
<p class="x_MsoNormal">&nbsp;</p>
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<p class="x_MsoNormal"><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif">That is starting to look good to me, but I would suggest making it symmetrical.</span></p>
<p style="margin:0in; margin-bottom:.0001pt"><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif">A removable medium (rmb) bit set to zero indicates that the medium is not
<s><span style="color:red">removable </span></s><span style="color:blue">able to be removed without removing the I_T nexus that connects the application client to the device server. &nbsp;</span>A rmb bit set to one indicates that the medium is
<s><span style="color:red">removable</span></s><span style="color:blue">able to be removed without affecting the I_T nexus between the application client and the device server.</span></span></p>
<p class="x_MsoNormal"><br>
<span style="font-size:10.0pt; font-family:&quot;Arial&quot;,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: </span><a href="mailto:kdbutt@us.ibm.com"><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif">kdbutt@us.ibm.com</span></a><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif"><br>
<br>
=========== Interesting Links ===========<br>
[ IBM Tape Storage ] &nbsp;</span><a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ibm.com_it-2Dinfrastructure_storage_tape&amp;d=DwMFAg&amp;c=IGDlg0lD0b-nebmJJ0Kp8A&amp;r=nwHemJnAMSpX8_5V-KnVO4RC6Gz7LepZjtJQCJYPS9M&amp;m=Sql9aAjZSPkTpoMWW8b5dSvkp5K71NZJGy638dn9BGY&amp;s=XDzUFj_mPxsdK4ySGtNLvEpdt-P-p9TlwCQy-jumBQw&amp;e="><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif">https://www.ibm.com/it-infrastructure/storage/tape</span></a><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif"><br>
[ SSIC - HBA/OS/Switch/Product interoperation ] </span><a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__www-2D304.ibm.com_systems_support_storage_ssic_interoperability.wss&amp;d=DwMFAg&amp;c=IGDlg0lD0b-nebmJJ0Kp8A&amp;r=nwHemJnAMSpX8_5V-KnVO4RC6Gz7LepZjtJQCJYPS9M&amp;m=Sql9aAjZSPkTpoMWW8b5dSvkp5K71NZJGy638dn9BGY&amp;s=kJlxCt0krgZA7CDP4mNMCcrIJoCQqfTYD60ZjsISFT4&amp;e="><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif">https://www-304.ibm.com/systems/support/storage/ssic/interoperability.wss</span></a><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif"><br>
[ LTO &amp; 3592 ISV Support Matrix ] </span><a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www.ibm.com_systems_resources_lto-5Fisv-5Fmatrix.pdf&amp;d=DwMFAg&amp;c=IGDlg0lD0b-nebmJJ0Kp8A&amp;r=nwHemJnAMSpX8_5V-KnVO4RC6Gz7LepZjtJQCJYPS9M&amp;m=Sql9aAjZSPkTpoMWW8b5dSvkp5K71NZJGy638dn9BGY&amp;s=jieYGmHJ5cthnJ-3CgdF4uzlDI4n13clu8mLEny8SHI&amp;e="><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif">www.ibm.com/systems/resources/lto_isv_matrix.pdf</span></a><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif"><br>
[ LTO SCSI Reference ] </span><a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www-2D01.ibm.com_support_docview.wss-3Fuid-3Dssg1S7003556&amp;d=DwMFAg&amp;c=IGDlg0lD0b-nebmJJ0Kp8A&amp;r=nwHemJnAMSpX8_5V-KnVO4RC6Gz7LepZjtJQCJYPS9M&amp;m=Sql9aAjZSPkTpoMWW8b5dSvkp5K71NZJGy638dn9BGY&amp;s=wWvAVhY48xet6A9LFFfDzWiY7OIWLyV7bVFvgN1pyC4&amp;e="><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif">http://www-01.ibm.com/support/docview.wss?uid=ssg1S7003556</span></a><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif"><br>
[ 3592 SCSI Reference ] </span><a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www-2D01.ibm.com_support_docview.wss-3Fuid-3Dssg1S7003248&amp;d=DwMFAg&amp;c=IGDlg0lD0b-nebmJJ0Kp8A&amp;r=nwHemJnAMSpX8_5V-KnVO4RC6Gz7LepZjtJQCJYPS9M&amp;m=Sql9aAjZSPkTpoMWW8b5dSvkp5K71NZJGy638dn9BGY&amp;s=N8gJbSMahJD3-i-9EmRj38pQfvldPmMOR_13kHGlA6U&amp;e="><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif">http://www-01.ibm.com/support/docview.wss?uid=ssg1S7003248</span></a><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif"><br>
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<span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif; color:#5F5F5F">From: &nbsp; &nbsp; &nbsp; &nbsp;</span><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">Ralph Weber &lt;</span><a href="mailto:Ralph.Weber@wdc.com"><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">Ralph.Weber@wdc.com</span></a><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">&gt;</span><br>
<span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif; color:#5F5F5F">To: &nbsp; &nbsp; &nbsp; &nbsp;</span><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">&quot;</span><a href="mailto:t10@t10.org"><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">t10@t10.org</span></a><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">&quot;
 &lt;</span><a href="mailto:t10@t10.org"><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">t10@t10.org</span></a><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">&gt;</span><br>
<span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif; color:#5F5F5F">Date: &nbsp; &nbsp; &nbsp; &nbsp;</span><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">07/29/2020 13:20</span><br>
<span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif; color:#5F5F5F">Subject: &nbsp; &nbsp; &nbsp; &nbsp;</span><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">[EXTERNAL] Re: [T10] Revisiting the RMB (Removable Medium) bit definition</span><br>
<span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif; color:#5F5F5F">Sent by: &nbsp; &nbsp; &nbsp; &nbsp;</span><a href="mailto:t10-bounces@t10.org"><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">t10-bounces@t10.org</span></a></p>
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<p style="margin:0in; margin-bottom:.0001pt">Or… <span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif">
how about something along the lines of:</span></p>
<p style="margin:0in; margin-bottom:.0001pt"><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif">A removable medium (rmb) bit set to zero indicates that the medium is not removable
<span style="color:blue">without removing the I_T nexus that connects the application client to the device server. &nbsp;</span>A rmb bit set to one indicates that the medium is
<s><span style="color:red">removable</span></s><span style="color:blue">able to be removed without affecting the I_T nexus between the application client and the device server.</span></span></p>
<p style="margin:0in; margin-bottom:.0001pt">&nbsp;</p>
<p style="margin:0in; margin-bottom:.0001pt">&nbsp;</p>
<p style="margin:0in; margin-bottom:.0001pt"><b>From:</b>Curtis Stevens &lt;<a href="mailto:curtis.stevens@seagate.com">curtis.stevens@seagate.com</a>&gt;
<b><br>
Sent:</b> Wednesday, July 29, 2020 3:12 PM<b><br>
To:</b> Ballard, Curtis C (HPE Storage) &lt;<a href="mailto:curtis.ballard@hpe.com">curtis.ballard@hpe.com</a>&gt;; Kevin D Butt &lt;<a href="mailto:kdbutt@us.ibm.com">kdbutt@us.ibm.com</a>&gt;; Ralph Weber &lt;<a href="mailto:Ralph.Weber@wdc.com">Ralph.Weber@wdc.com</a>&gt;<b><br>
Cc:</b> <a href="mailto:t10@t10.org">t10@t10.org</a><b><br>
Subject:</b> Re: [T10] Revisiting the RMB (Removable Medium) bit definition</p>
<p style="margin:0in; margin-bottom:.0001pt">&nbsp;</p>
<p style="margin:0in; margin-bottom:.0001pt"><b><span style="font-size:10.0pt; color:red">CAUTION:</span></b><b><span style="font-size:10.0pt">This email originated from outside of Western Digital. Do not click on links or open attachments unless you recognize
 the sender and know that the content is safe.</span></b></p>
<p style="margin:0in; margin-bottom:.0001pt">&nbsp;</p>
<p style="margin:0in; margin-bottom:.0001pt">I think part of the blatant wording that Ralph is proposing is that those making the requirements on the device side do not fully understand SCSI. &nbsp;This has been the case from day 1 and has not changed. &nbsp;It is fairly
 easy to understand commands and what they do. &nbsp;Understanding the architecture is a different story.</p>
<p style="margin:0in; margin-bottom:.0001pt">&nbsp;</p>
<p style="margin:0in; margin-bottom:.0001pt">I think your suggested change could be integrated with Ralphs change...</p>
<p style="margin:0in; margin-bottom:.0001pt">&nbsp;</p>
<p style="margin:0in; margin-bottom:.0001pt"><span style="color:#0060A0">&nbsp;</span></p>
<p style="margin:0in; margin-bottom:.0001pt"><span style="color:#0060A0">---------------------------------------------</span></p>
<p style="margin:0in; margin-bottom:.0001pt"><span style="color:#0060A0">Curtis E. Stevens</span></p>
<p style="margin:0in; margin-bottom:.0001pt"><span style="color:#0060A0">Technologist</span></p>
<p style="margin:0in; margin-bottom:.0001pt"><span style="color:#0060A0">Seagate Technology</span></p>
<p style="margin:0in; margin-bottom:.0001pt">&nbsp;</p>
<p style="margin:0in; margin-bottom:.0001pt"><span style="color:#0060A0">E-Mail: </span>
<a href="mailto:Curtis.Stevens@Seagate.com">Curtis.Stevens@Seagate.com</a></p>
<p style="margin:0in; margin-bottom:.0001pt"><span style="color:#0060A0">Phone: 949-307-5050</span></p>
<p style="margin:0in; margin-bottom:.0001pt">&nbsp;</p>
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<p style="margin:0in; margin-bottom:.0001pt"><b>From:</b>Ballard, Curtis C (HPE Storage) &lt;<a href="mailto:curtis.ballard@hpe.com">curtis.ballard@hpe.com</a>&gt;<b><br>
Sent:</b> Wednesday, July 29, 2020 12:49 PM<b><br>
To:</b> Curtis Stevens &lt;<a href="mailto:curtis.stevens@seagate.com">curtis.stevens@seagate.com</a>&gt;; Kevin D Butt &lt;<a href="mailto:kdbutt@us.ibm.com">kdbutt@us.ibm.com</a>&gt;; Ralph Weber &lt;<a href="mailto:Ralph.Weber@wdc.com">Ralph.Weber@wdc.com</a>&gt;<b><br>
Cc:</b> <a href="mailto:t10@t10.org">t10@t10.org</a>&lt;<a href="mailto:t10@t10.org">t10@t10.org</a>&gt;<b><br>
Subject:</b> RE: [T10] Revisiting the RMB (Removable Medium) bit definition </p>
<p style="margin:0in; margin-bottom:.0001pt">&nbsp;</p>
<p style="margin:0in; margin-bottom:.0001pt"><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif">Why don’t we specify it in architectural terms. &nbsp;Something along the lines of:</span></p>
<p style="margin:0in; margin-bottom:.0001pt"><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif">A removable medium (rmb) bit set to zero indicates that the medium is not removable
<span style="color:blue">from the device server. &nbsp;</span></span></p>
<p style="margin:0in; margin-bottom:.0001pt"><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif">A rmb bit set to one indicates that the medium is
<s><span style="color:red">removable</span></s><span style="color:blue">able to be removed without removing the device server.</span></span></p>
<p style="margin:0in; margin-bottom:.0001pt"><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif; color:#004080">&nbsp;</span></p>
<p style="margin:0in; margin-bottom:.0001pt">Curtis Ballard</p>
<p style="margin:0in; margin-bottom:.0001pt">Hewlett Packard Enterprise</p>
<p style="margin:0in; margin-bottom:.0001pt">HPE Storage R&amp;D</p>
<p style="margin:0in; margin-bottom:.0001pt">Fort Collins, CO</p>
<p style="margin:0in; margin-bottom:.0001pt">(970) 898-3013</p>
<p style="margin:0in; margin-bottom:.0001pt"><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif; color:#004080">&nbsp;</span></p>
<p style="margin:0in; margin-bottom:.0001pt"><b>From:</b><a href="mailto:t10-bounces@t10.org">t10-bounces@t10.org</a>[<a href="mailto:t10-bounces@t10.org">mailto:t10-bounces@t10.org</a>]
<b>On Behalf Of </b>Curtis Stevens<b><br>
Sent:</b> Wednesday, July 29, 2020 1:04 PM<b><br>
To:</b> Kevin D Butt &lt;<a href="mailto:kdbutt@us.ibm.com">kdbutt@us.ibm.com</a>&gt;; Ralph Weber &lt;<a href="mailto:Ralph.Weber@wdc.com">Ralph.Weber@wdc.com</a>&gt;<b><br>
Cc:</b> <a href="mailto:t10@t10.org">t10@t10.org</a><b><br>
Subject:</b> Re: [T10] Revisiting the RMB (Removable Medium) bit definition</p>
<p style="margin:0in; margin-bottom:.0001pt">&nbsp;</p>
<p style="margin:0in; margin-bottom:.0001pt">I would turn the proposal around and say the RMB bit shall only be set to one if the device is able to report ... after is media is ejected.</p>
<p style="margin:0in; margin-bottom:.0001pt">&nbsp;</p>
<p style="margin:0in; margin-bottom:.0001pt"><span style="color:#0060A0">&nbsp;</span></p>
<p style="margin:0in; margin-bottom:.0001pt"><span style="color:#0060A0">---------------------------------------------</span></p>
<p style="margin:0in; margin-bottom:.0001pt"><span style="color:#0060A0">Curtis E. Stevens</span></p>
<p style="margin:0in; margin-bottom:.0001pt"><span style="color:#0060A0">Technologist</span></p>
<p style="margin:0in; margin-bottom:.0001pt"><span style="color:#0060A0">Seagate Technology</span></p>
<p style="margin:0in; margin-bottom:.0001pt">&nbsp;</p>
<p style="margin:0in; margin-bottom:.0001pt"><span style="color:#0060A0">E-Mail: </span>
<a href="mailto:Curtis.Stevens@Seagate.com">Curtis.Stevens@Seagate.com</a></p>
<p style="margin:0in; margin-bottom:.0001pt"><span style="color:#0060A0">Phone: 949-307-5050</span></p>
<p style="margin:0in; margin-bottom:.0001pt">&nbsp;</p>
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<p style="margin:0in; margin-bottom:.0001pt"><b>From:</b><a href="mailto:t10-bounces@t10.org">t10-bounces@t10.org</a>&lt;<a href="mailto:t10-bounces@t10.org">t10-bounces@t10.org</a>&gt; on behalf of Kevin D Butt &lt;<a href="mailto:kdbutt@us.ibm.com">kdbutt@us.ibm.com</a>&gt;<b><br>
Sent:</b> Wednesday, July 29, 2020 8:48 AM<b><br>
To:</b> Ralph Weber &lt;<a href="mailto:Ralph.Weber@wdc.com">Ralph.Weber@wdc.com</a>&gt;<b><br>
Cc:</b> <a href="mailto:t10@t10.org">t10@t10.org</a>&lt;<a href="mailto:t10@t10.org">t10@t10.org</a>&gt;<b><br>
Subject:</b> Re: [T10] Revisiting the RMB (Removable Medium) bit definition</p>
<p style="margin:0in; margin-bottom:.0001pt">&nbsp;</p>
<p style="margin:0in; margin-bottom:.0001pt"><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif">Ralph,</span><br>
<span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif"><br>
I applaud your goal, however, I am concerned about this definition. Take, for example, a tape library. It has removable media, yet it would not report one of these two additional sense codes. Even if all user cartridges were removed, the library would still
 be ready. It could do management type things including using diagnostic cartridges (not seen as medium to the application client) to test drives.</span><br>
<span style="font-size:13.0pt; font-family:&quot;Arial&quot;,sans-serif"><br>
The </span><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif">RMB</span><span style="font-size:13.0pt; font-family:&quot;Arial&quot;,sans-serif">should be set to zero, if the device server is not able to terminate a TEST UNIT READY command (6.48) with CHECK
 CONDITION status, with the sense key set to NOT READY and the additional sense code:<br>
a)set to NOT READY, MEDIUM NOT PRESENT; or<br>
b)having the </span><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif">ADDITIONALSENSECODE</span><span style="font-size:13.0pt; font-family:&quot;Arial&quot;,sans-serif">field (see 4.4.2 and 4.4.3) set to 3Ah (e.g., MEDIUM NOT PRESENT - TRAY OPEN).</span><br>
<span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif"><br>
Thanks,<br>
<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: </span><a href="mailto:kdbutt@us.ibm.com"><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif">kdbutt@us.ibm.com</span></a><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif"><br>
<br>
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===================================</span><br>
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<br>
<span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif; color:#5F5F5F"><br>
From: &nbsp; &nbsp; &nbsp; &nbsp;</span><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">Ralph Weber &lt;</span><a href="mailto:Ralph.Weber@wdc.com"><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">Ralph.Weber@wdc.com</span></a><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">&gt;<span style="color:#5F5F5F"><br>
To: &nbsp; &nbsp; &nbsp; &nbsp;</span>&quot;</span><a href="mailto:t10@t10.org"><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">t10@t10.org</span></a><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">&quot; &lt;</span><a href="mailto:t10@t10.org"><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">t10@t10.org</span></a><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">&gt;<span style="color:#5F5F5F"><br>
Date: &nbsp; &nbsp; &nbsp; &nbsp;</span>07/29/2020 06:49<span style="color:#5F5F5F"><br>
Subject: &nbsp; &nbsp; &nbsp; &nbsp;</span>[EXTERNAL] Re: [T10] Revisiting the RMB (Removable Medium) bit definition<span style="color:#5F5F5F"><br>
Sent by: &nbsp; &nbsp; &nbsp; &nbsp;</span></span><a href="mailto:t10-bounces@t10.org"><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">t10-bounces@t10.org</span></a></p>
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Proposal <a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www.t10.org_cgi-2Dbin_ac.pl-3Ft-3Dd-26f-3D20-2D082r0.pdf&amp;d=DwMFAg&amp;c=IGDlg0lD0b-nebmJJ0Kp8A&amp;r=nwHemJnAMSpX8_5V-KnVO4RC6Gz7LepZjtJQCJYPS9M&amp;m=Sql9aAjZSPkTpoMWW8b5dSvkp5K71NZJGy638dn9BGY&amp;s=8S4Oa0Od4P2cdkwjCZAoSJu_w4TdaRkdLp8QHfNkBFQ&amp;e=">
20-082r0</a><i>SPC-6: Removable Medium Bit Expectations</i> has been posted to bring this discussion thread to the attention of CAP.<br>
&nbsp;<br>
Resisting the ongoing calls to put as many words as possible into every standard, the proposal includes only one of the methods for defining a “real” removable medium device discussed in this thread. For the purposes discussed here, only one method is necessary
 to sufficiently define the standard.<br>
&nbsp;<br>
All the best, .Ralph<br>
&nbsp;<br>
<b>From:</b>t10-bounces@t10.org &lt;<a href="mailto:t10-bounces@t10.org">t10-bounces@t10.org</a>&gt;
<b>On Behalf Of </b>Michael Webster<b><br>
Sent:</b> Tuesday, July 21, 2020 7:57 PM<b><br>
To:</b> <a href="mailto:t10@t10.org">t10@t10.org</a><b><br>
Subject:</b> Re: [T10] Revisiting the RMB (Removable Medium) bit definition<br>
&nbsp;<br>
I would like to add one other tidbit: &nbsp;A device reporting RMB=1 in addition to being capable of a state that reports MEDIUM NOT PRESENT, such a device should also properly support and execute an ejection operation of that media when sent a START/STOP UNIT command
 with Power_Condition=0, LoEj=1, &amp; Start=0.<br>
&nbsp;<br>
Mike Webster<br>
Western Digital<br>
&nbsp;<br>
<b><span style="font-size:12.0pt">From: </span></b><span style="font-size:12.0pt">&lt;</span><a href="mailto:t10-bounces@t10.org"><span style="font-size:12.0pt">t10-bounces@t10.org</span></a><span style="font-size:12.0pt">&gt; on behalf of Mike Webster &lt;</span><a href="mailto:Mike.Webster@wdc.com"><span style="font-size:12.0pt">Mike.Webster@wdc.com</span></a><span style="font-size:12.0pt">&gt;<b><br>
Date: </b>Friday, July 17, 2020 at 10:30 AM<b><br>
To: </b>&quot;</span><a href="mailto:t10@t10.org"><span style="font-size:12.0pt">t10@t10.org</span></a><span style="font-size:12.0pt">&quot; &lt;</span><a href="mailto:t10@t10.org"><span style="font-size:12.0pt">t10@t10.org</span></a><span style="font-size:12.0pt">&gt;<b><br>
Subject: </b>Re: [T10] Revisiting the RMB (Removable Medium) bit definition</span><br>
&nbsp;<br>
I would expect a USB memory stick to report RMB=0 and ejection causes the whole device to be removed from the operating system’s driver stack. &nbsp;Afterward, such an ejected device would require an unplug/re-plug for the device to respond to anything on USB.<br>
&nbsp;<br>
Unless that USB memory stick included a slot for media (e.g. an SD slot) then I would expect the USB memory stick to report RMB=1 and ejection would only cause the device to remove the media, the device would remain in the operating system’s driver stack, and
 the device would begin reporting CHECK CONDITION, NOT READY, MEDIUM NOT PRESENT for TEST UNIT READY.<br>
&nbsp;<br>
Mike Webster<br>
Western Digital <br>
&nbsp;<br>
<b><span style="font-size:12.0pt">From: </span></b><span style="font-size:12.0pt">&lt;</span><a href="mailto:t10-bounces@t10.org"><span style="font-size:12.0pt">t10-bounces@t10.org</span></a><span style="font-size:12.0pt">&gt; on behalf of Curtis Stevens &lt;</span><a href="mailto:curtis.stevens@seagate.com"><span style="font-size:12.0pt">curtis.stevens@seagate.com</span></a><span style="font-size:12.0pt">&gt;<b><br>
Date: </b>Friday, July 17, 2020 at 10:05 AM<b><br>
To: </b>Kevin D Butt &lt;</span><a href="mailto:kdbutt@us.ibm.com"><span style="font-size:12.0pt">kdbutt@us.ibm.com</span></a><span style="font-size:12.0pt">&gt;, Paul Suhler &lt;</span><a href="mailto:Paul.Suhler@kioxia.com"><span style="font-size:12.0pt">Paul.Suhler@kioxia.com</span></a><span style="font-size:12.0pt">&gt;<b><br>
Cc: </b>&quot;</span><a href="mailto:t10@t10.org"><span style="font-size:12.0pt">t10@t10.org</span></a><span style="font-size:12.0pt">&quot; &lt;</span><a href="mailto:t10@t10.org"><span style="font-size:12.0pt">t10@t10.org</span></a><span style="font-size:12.0pt">&gt;, &quot;</span><a href="mailto:t10-bounces@t10.org"><span style="font-size:12.0pt">t10-bounces@t10.org</span></a><span style="font-size:12.0pt">&quot;
 &lt;</span><a href="mailto:t10-bounces@t10.org"><span style="font-size:12.0pt">t10-bounces@t10.org</span></a><span style="font-size:12.0pt">&gt;<b><br>
Subject: </b>Re: [T10] Revisiting the RMB (Removable Medium) bit definition</span><br>
&nbsp;<br>
<span style="font-size:12.0pt">We had this descussion during the original specification development. &nbsp;For USB, the device controller is removed along with the media. &nbsp;There is nothing present to respond with an RMB bit. &nbsp;If however, you plug in a USB floppy,
 you can have an RMB bit that enables eject function reporting.</span><br>
<span style="font-size:12.0pt">&nbsp;</span><br>
<span style="font-size:12.0pt; color:#0060A0">&nbsp;</span><br>
<span style="font-size:12.0pt; color:#0060A0">---------------------------------------------</span><br>
<span style="font-size:12.0pt; color:#0060A0">Curtis E. Stevens</span><br>
<span style="font-size:12.0pt; color:#0060A0">Technologist</span><br>
<span style="font-size:12.0pt; color:#0060A0">Seagate Technology</span><br>
<span style="font-size:12.0pt">&nbsp;</span><br>
<span style="font-size:12.0pt; color:#0060A0">E-Mail: </span><a href="mailto:Curtis.Stevens@Seagate.com"><span style="font-size:12.0pt">Curtis.Stevens@Seagate.com</span></a><br>
<span style="font-size:12.0pt; color:#0060A0">Phone: 949-307-5050</span><br>
<span style="font-size:12.0pt">&nbsp;</span> </p>
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<b>From:</b><a href="mailto:t10-bounces@t10.org">t10-bounces@t10.org</a>&lt;<a href="mailto:t10-bounces@t10.org">t10-bounces@t10.org</a>&gt; on behalf of Kevin D Butt &lt;<a href="mailto:kdbutt@us.ibm.com">kdbutt@us.ibm.com</a>&gt;<b><br>
Sent:</b> Friday, July 17, 2020 9:40 AM<b><br>
To:</b> Paul Suhler &lt;<a href="mailto:Paul.Suhler@kioxia.com">Paul.Suhler@kioxia.com</a>&gt;<b><br>
Cc:</b> <a href="mailto:t10@t10.org">t10@t10.org</a>&lt;<a href="mailto:t10@t10.org">t10@t10.org</a>&gt;;
<a href="mailto:t10-bounces@t10.org">t10-bounces@t10.org</a>&lt;<a href="mailto:t10-bounces@t10.org">t10-bounces@t10.org</a>&gt;<b><br>
Subject:</b> Re: [T10] Revisiting the RMB (Removable Medium) bit definition <br>
&nbsp;<br>
<span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif">I concur with Curtis and Paul.<br>
<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: </span><a href="mailto:kdbutt@us.ibm.com"><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif">kdbutt@us.ibm.com</span></a><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif"><br>
<br>
=========== Interesting Links ===========<br>
[ IBM Tape Storage ] &nbsp;</span><a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ibm.com_it-2Dinfrastructure_storage_tape&amp;d=DwMFAg&amp;c=IGDlg0lD0b-nebmJJ0Kp8A&amp;r=nwHemJnAMSpX8_5V-KnVO4RC6Gz7LepZjtJQCJYPS9M&amp;m=Sql9aAjZSPkTpoMWW8b5dSvkp5K71NZJGy638dn9BGY&amp;s=XDzUFj_mPxsdK4ySGtNLvEpdt-P-p9TlwCQy-jumBQw&amp;e="><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif">https://www.ibm.com/it-infrastructure/storage/tape</span></a><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif"><br>
[ SSIC - HBA/OS/Switch/Product interoperation ] </span><a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__www-2D304.ibm.com_systems_support_storage_ssic_interoperability.wss&amp;d=DwMFAg&amp;c=IGDlg0lD0b-nebmJJ0Kp8A&amp;r=nwHemJnAMSpX8_5V-KnVO4RC6Gz7LepZjtJQCJYPS9M&amp;m=Sql9aAjZSPkTpoMWW8b5dSvkp5K71NZJGy638dn9BGY&amp;s=kJlxCt0krgZA7CDP4mNMCcrIJoCQqfTYD60ZjsISFT4&amp;e="><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif">https://www-304.ibm.com/systems/support/storage/ssic/interoperability.wss</span></a><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif"><br>
[ LTO &amp; 3592 ISV Support Matrix ] </span><a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www.ibm.com_systems_resources_lto-5Fisv-5Fmatrix.pdf&amp;d=DwMFAg&amp;c=IGDlg0lD0b-nebmJJ0Kp8A&amp;r=nwHemJnAMSpX8_5V-KnVO4RC6Gz7LepZjtJQCJYPS9M&amp;m=Sql9aAjZSPkTpoMWW8b5dSvkp5K71NZJGy638dn9BGY&amp;s=jieYGmHJ5cthnJ-3CgdF4uzlDI4n13clu8mLEny8SHI&amp;e="><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif">www.ibm.com/systems/resources/lto_isv_matrix.pdf</span></a><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif"><br>
[ LTO SCSI Reference ] </span><a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www-2D01.ibm.com_support_docview.wss-3Fuid-3Dssg1S7003556&amp;d=DwMFAg&amp;c=IGDlg0lD0b-nebmJJ0Kp8A&amp;r=nwHemJnAMSpX8_5V-KnVO4RC6Gz7LepZjtJQCJYPS9M&amp;m=Sql9aAjZSPkTpoMWW8b5dSvkp5K71NZJGy638dn9BGY&amp;s=wWvAVhY48xet6A9LFFfDzWiY7OIWLyV7bVFvgN1pyC4&amp;e="><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif">http://www-01.ibm.com/support/docview.wss?uid=ssg1S7003556</span></a><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif"><br>
[ 3592 SCSI Reference ] </span><a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www-2D01.ibm.com_support_docview.wss-3Fuid-3Dssg1S7003248&amp;d=DwMFAg&amp;c=IGDlg0lD0b-nebmJJ0Kp8A&amp;r=nwHemJnAMSpX8_5V-KnVO4RC6Gz7LepZjtJQCJYPS9M&amp;m=Sql9aAjZSPkTpoMWW8b5dSvkp5K71NZJGy638dn9BGY&amp;s=N8gJbSMahJD3-i-9EmRj38pQfvldPmMOR_13kHGlA6U&amp;e="><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif">http://www-01.ibm.com/support/docview.wss?uid=ssg1S7003248</span></a><span style="font-size:10.0pt; font-family:&quot;Arial&quot;,sans-serif"><br>
===================================</span><br>
<br>
<span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif; color:#5F5F5F"><br>
<br>
From: &nbsp; &nbsp; &nbsp; &nbsp;</span><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">Paul Suhler &lt;</span><a href="mailto:Paul.Suhler@kioxia.com"><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">Paul.Suhler@kioxia.com</span></a><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">&gt;<span style="color:#5F5F5F"><br>
To: &nbsp; &nbsp; &nbsp; &nbsp;</span>&quot;Ballard, Curtis C (HPE Storage)&quot; &lt;</span><a href="mailto:curtis.ballard@hpe.com"><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">curtis.ballard@hpe.com</span></a><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">&gt;,
 Ralph Weber &lt;</span><a href="mailto:Ralph.Weber@wdc.com"><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">Ralph.Weber@wdc.com</span></a><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">&gt;, &quot;</span><a href="mailto:t10@t10.org"><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">t10@t10.org</span></a><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">&quot;
 &lt;</span><a href="mailto:t10@t10.org"><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">t10@t10.org</span></a><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">&gt;<span style="color:#5F5F5F"><br>
Date: &nbsp; &nbsp; &nbsp; &nbsp;</span>07/17/2020 09:19<span style="color:#5F5F5F"><br>
Subject: &nbsp; &nbsp; &nbsp; &nbsp;</span>[EXTERNAL] Re: [T10] Revisiting the RMB (Removable Medium) bit definition<span style="color:#5F5F5F"><br>
Sent by: &nbsp; &nbsp; &nbsp; &nbsp;</span></span><a href="mailto:t10-bounces@t10.org"><span style="font-size:9.0pt; font-family:&quot;Arial&quot;,sans-serif">t10-bounces@t10.org</span></a>
</p>
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<p style="">&nbsp;</p>
<p style="margin:0in; margin-bottom:.0001pt"><span style="color:#004080"><br>
I agree with Curtis about the need to be able to report NOT READY, MEDIUM NOT PRESENT. I’ve worked on both SSC and SBC devices like that.<br>
<br>
Paul<br>
Kioxia<br>
</span><b><br>
From:</b>t10-bounces@t10.org &lt;<a href="mailto:t10-bounces@t10.org">t10-bounces@t10.org</a>&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;<a href="mailto:Ralph.Weber@wdc.com">Ralph.Weber@wdc.com</a>&gt;;
<a href="mailto:t10@t10.org">t10@t10.org</a><b><br>
Subject:</b> Re: [T10] Revisiting the RMB (Removable Medium) bit definition<br>
<br>
Ralph,<br>
<br>
That bit is used with tape drives and was used with SCSI magneto optical drives, DVD drives, etc. &nbsp;<br>
<br>
Even system I’ve used with that bit set to one, and I’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.<br>
<br>
SCSI devices should only set that bit to one if they are able to report an 02h/3Ah/00h – NOT READY, MEDIUM NOT PRESENT<br>
<br>
Curtis Ballard<br>
Hewlett Packard Enterprise<br>
<b><br>
From:</b><a href="mailto:t10-bounces@t10.org"><span style="color:#0082BF">t10-bounces@t10.org</span></a>&lt;<a href="mailto:t10-bounces@t10.org"><span style="color:#0082BF">t10-bounces@t10.org</span></a>&gt;
<b>On Behalf Of </b>Ralph Weber<b><br>
Sent:</b> Thursday, July 16, 2020 5:27 PM<b><br>
To:</b> <a href="mailto:t10@t10.org"><span style="color:#0082BF">t10@t10.org</span></a><b><br>
Subject:</b> [T10] Revisiting the RMB (Removable Medium) bit definition<br>
<br>
Regarding the Standard INQUIRY data RMB bit, SPC-6 r02 says…<br>
“A removable medium (<span style="font-size:9.0pt">RMB</span>) bit set to zero indicates that the medium is not removable. A
<span style="font-size:9.0pt">RMB </span>bit set to one indicates that the medium is removable.”<br>
<br>
An interesting debate has developed regarding whether a USB “memory stick” is an <span style="font-size:9.0pt">
RMB</span>=0 or an <span style="font-size:9.0pt">RMB</span>=1 device.<br>
<br>
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…<br>
“A removable medium (<span style="font-size:9.0pt">RMB</span>) bit set to zero indicates that the medium is not removable
<u><span style="color:#0082BF">without resulting in a Logical Unit Reset condition (see SAM-6) or an I_T Nexus Loss condition (see SAM-6)</span></u>. A
<span style="font-size:9.0pt">RMB </span>bit set to one indicates that the medium is removable
<u><span style="color:#0082BF">with no concurrent Logical Unit Reset condition or I_T Nexus Loss condition</span></u>.”<br>
<br>
How says the T10 body politic?<br>
<br>
Thanks,<br>
<br>
.Ralph<span style="font-size:10.0pt; font-family:&quot;Courier New&quot;">_______________________________________________<br>
T10 mailing list</span><u><span style="color:blue"><br>
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&nbsp;<span style="font-size:10.0pt; font-family:&quot;Courier New&quot;">_______________________________________________<br>
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