Clarify between decimal bytes and binary bytes

Vit Novak vit.novak at oracle.com
Wed Jul 7 11:53:48 PDT 2010


* From the T10 Reflector (t10 at t10.org), posted by:
* Vit Novak <vit.novak at oracle.com>
*
  This has been clarified in some of the basic T10 standards in the 
past. I agree that every T10 standard should have this clause.
vit-
On 07/07/10 10:17, Matthew Jacob wrote:
> This is long overdue. I applaud you bringing this up.
>>
>> I believe that the time has come to clear up confusion in the 
>> industry about the units used in T10 standards.  There should be a 
>> clause added in each of the standards describing the difference 
>> between decimal bytes (e.g., MB = 10^6) and binary bytes (e.g., MiB = 
>> 2^20).  There has been this definition in IEC for since Dec 1998.
>>
>> References:
>> http://physics.nist.gov/cuu/Units/binary.html
>> http://en.wikipedia.org/wiki/Binary_prefix
>>
>> I hesitate to bring in a solo proposal to modify SSC-4 or even SPC-4 
>> when this issue should apply to all standards.
>> Does anybody disagree that T10 should clarify the units being used in 
>> our standards?
>> What is the preferred manner in which we should proceed to make sure 
>> this clarification is added to each standard?
>>
>> Thanks,
>>
>> Kevin D. Butt
>> SCSI & Fibre Channel Architect, Tape Firmware
>> MS 6TYA, 9000 S. Rita Rd., Tucson, AZ 85744
>> Tel: 520-799-5280
>> Fax: 520-799-2723 (T/L:321)
>> Email address: kdbutt at us.ibm.com
>> http://www-03.ibm.com/servers/storage/ 
>
--------------060406030803060207070400
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
This has been clarified in some of the basic T10 standards in the past. I
agree that every T10 standard should have this clause. 
vit-
On 07/07/10 10:17, Matthew Jacob wrote: 
>This is long overdue. I applaud you bringing this up.
>>
>>I believe that the time has come to clear up confusion in the industry
about the units used in T10 standards.	There should be a clause added in
each of the standards describing the difference between decimal bytes (e.g.,
MB = 10^6) and binary bytes (e.g., MiB = 2^20).  There has been this
definition in IEC for since Dec 1998. 
>>
>>References: 
>><http://physics.nist.gov/cuu">http://physics.nist.gov/cuu/Units/binary.html>http://physics.nist.gov/cuu/
Units/binary.html 
>>http://en.wikipedia.org/wiki/Binary_prefix 
>>
>>I hesitate to bring in a solo proposal to modify SSC-4 or even SPC-4 when
this issue should apply to all standards. 
>>Does anybody disagree that T10 should clarify the units being used in our
standards? 
>>What is the preferred manner in which we should proceed to make sure this
clarification is added to each standard? 
>>
>>Thanks, 
>>
>>Kevin D. Butt
>>SCSI & Fibre Channel Architect, Tape Firmware
>>MS 6TYA, 9000 S. Rita Rd., Tucson, AZ 85744
>>Tel: 520-799-5280
>>Fax: 520-799-2723 (T/L:321)
>>Email address: kdbutt at us.ibm.com
>>http://www-03.ibm.com/servers/storage/ 
--------------060406030803060207070400--
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