** This is the quasi-official and semi-temporary T13 email list server. **
More generically, the basic 48-bit LBA feature description still has this
0FFFFFFFh required value called out and needs to relect what you have said
below, which is related to more than just Read Native Max. MKE.
-----Original Message-----
From: Daniel J Colegrove [mailto:[EMAIL PROTECTED]]
Sent: Monday, August 13, 2001 8:56 AM
To: [EMAIL PROTECTED]
Subject: [temp t13] Read Native Max in ATA/ATAPI-6
** This is the quasi-official and semi-temporary T13 email list server. **
In ATA/ATAPI-6 we put in a statement that for drives larger than
0FFFFFFFh logical blocks Read Native Max shall return 0FFFFFFFh
blocks. This conflicts with the compatibility issue we noted earlier
that some BIOS may add 1 to the number returned to get the maximum
number of sectors, roll over, and have an error. Read Native Max
should be changed to a maximum value of 0FFFFFFFh so devices
can return 0FFFFFFEh, avoiding the problem.
Best Regards,
DC
Dan Colegrove
Senior Technical Staff Member
Storage Technology Division
IBM Corporation
702-614-6119
702-614-7955 fax
Tie Line 280-9959 (IBM internal)
[EMAIL PROTECTED]
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