ADC: MUP desired behavior

Kevin D Butt kdbutt at us.ibm.com
Wed Mar 2 07:37:26 PST 2005


* From the T10 Reflector (t10 at t10.org), posted by:
* Kevin D Butt <kdbutt at us.ibm.com>
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ADC guru's, 

The MUP bit is defined as: 
<< A microcode update protect (MUP) bit set to one shall prevent the DT
device from performing a microcode update process upon the loading of a
medium containing a microcode image. A MUP bit set to zero shall not
prevent the DT device from performing a microcode update process upon
the loading of a medium containing a microcode image. >> 

Is the intent of this bit only to protect against automated insertion or
is it also intended to protect against manual attempts such as through a
drive maintenance panel (i.e. A user manually sets the drive for a ucode
update through a drive panel and then a cartridge is inserted)? 

Thanks, 

Kevin D. Butt
Fibre Channel & SCSI Architect, IBM Tape Firmware, 
6TYA, 9000 S. Rita Rd., Tucson, AZ  85744
Tie-line 321; Office: 520-799-5280, Lab: 799-5751, Fax: 799-4138, Email:
kdbutt at us.ibm.com

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<br><font size=2 face="sans-serif">ADC guru's,</font>
<br>
<br><font size=2 face="sans-serif">The MUP bit is defined as:</font>
<br><font size=2 face="sans-serif"><< A microcode update protect
(MUP) bit set to one shall prevent the DT device from performing a microcode
update process upon the loading of a medium containing a microcode image.
A MUP bit set to zero shall not prevent the DT device from performing a
microcode update process upon the loading of a medium containing a microcode
image. >></font>
<br>
<br><font size=2 face="sans-serif">Is the intent of this bit only to protect
against automated insertion or is it also intended to protect against manual
attempts such as through a drive maintenance panel (i.e. A user manually
sets the drive for a ucode update through a drive panel and then a cartridge
is inserted)?</font>
<br>
<br><font size=2 face="sans-serif">Thanks,</font>
<br><font size=2 face="sans-serif"><br>
Kevin D. Butt<br>
Fibre Channel &amp; SCSI Architect, IBM Tape Firmware, <br>
6TYA, 9000 S. Rita Rd., Tucson, AZ &nbsp;85744<br>
Tie-line 321; Office: 520-799-5280, Lab: 799-5751, Fax: 799-4138, Email:
kdbutt at us.ibm.com</font>
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