RE: [t13] Question on HPA

[Curtis Stevens]

I am a little confused about the intention of 28-bit/48-bit HPA interaction and would like to add this as a discussion item for the meeting next week.  It looks to me like if you issue a 28 bit NV SETMAX on a drive with more than 137GB that there is no way to size the drive back up.     ------------------------------------------------- Curtis E. Stevens 20511 Lake Forest Drive #C-214D Lake Forest, California 92630 Phone: 949-672-7933 Cell: 949-307-5050 E-Mail: [EMAIL PROTECTED] Ambition is a poor excuse for not having enough sense to be lazy. From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Curtis Stevens Sent: Friday, August 12, 2005 5:07 PM To: Forum@t13.org Subject: [t13] Question on HPA   I am looking at eo3124r5, HPA state transition diagrams.   In HS2: no password, non-volatile 1, there is a SETMAX to READ NATIVE MAX transition that is labeled no HPA SET.  According to ATA/ATAPI-7, on a 48-bit drives with a capacity larger than 28 bits, this would not clear the HPA.  This would simply set the HPA to the READ NATIVE MAX value.  If I am reading this right, a SETMAX EXT to READ NATIVE MAX EXT would be required to clear the HPA.  Is this true, or have I got it wrong?     ------------------------------------------------- Curtis E. Stevens 20511 Lake Forest Drive #C-214D Lake Forest, California 92630 Phone: 949-672-7933 Cell: 949-307-5050 E-Mail: [EMAIL PROTECTED] Ambition is a poor excuse for not having enough sense to be lazy.