data protection format types

[George Penokie]

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Gary,
As with all Inquiry bits and fields, those three bits define what the 
device is capable of doing. No amount of formatting can change what the 
devices reports in those bits.
Bye for now,
George Penokie
Dept 9A8 030-3 A410
E-Mail:    gop at us.ibm.com
Internal:  553-5208
External: 507-253-5208
Gary.Franco at Emulex.Com 
Sent by: owner-t10 at t10.org
08/10/2006 02:46 PM
To
<t10 at t10.org>
cc
<Bob.Nixon at Emulex.Com>
Subject
data protection format types
I have a question with regard to the discussion in SPC4r04 
In clause 7.6.4 Extended INQUIRY Data VPD page, there are 3 bits discussed 
GRD_CHK, 
APP_CHK and 
REF_CHK
They are defined as far as their meaning, but never discussed how they are 
set. 
Is this part of the format process, or simply the capability of the device 
firmware or design?
I got a response that said go look at any protected command (i.e. 
read/write, etc.), however that does not answer the question.
Are these 3 bits somehow tied to the format type (type 1, 2, or 3) 
__________________________________
Gary Franco Consultant Engineer 
Emulex Network Systems 
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