This message is from the T13 list server.
I would agree with Joseph (partially). Referring to ATA/ATAPI-7, rev 4b, volume 1, clause 4.7.4... If the drive is security disabled, not frozen, then all commands are executable. (If prefaced by SECURITY ERASE PREPARE) If the drive is security disabled, but frozen, then you cannot execute SECURITY ERASE UNIT. (Table 4, Frozen) If the drive is security enabled, not frozen, you can execute SECURITY ERASE UNIT. (If prefaced by SECURITY ERASE PREPARE) See transition SEC4:SEC1. If the drive is security enabled and frozen, you cannot execute SECURITY ERASE UNIT unless you do a Pin 1 / power on reset. ::>-----Original Message----- ::>From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On ::>Behalf Of Joseph Chen - SISA ::>Sent: Tuesday, May 17, 2005 11:27 AM ::>To: Thomas Jansen; [email protected] ::>Subject: RE: [t13] Back to the main problem. Please read ::> ::>This message is from the T13 list server. ::> ::> ::>My understanding on the spec is one can do Security Erase ::>without password. ::> ::>Regards, ::>Joseph ::> ::>-----Original Message----- ::>From: Thomas Jansen [mailto:[EMAIL PROTECTED] ::>Sent: Tuesday, May 17, 2005 9:50 AM ::>To: [email protected] ::>Subject: Re: [t13] Back to the main problem. Please read ::> ::>This message is from the T13 list server. ::> ::> ::>Curtis Stevens wrote: ::> ::>>This message is from the T13 list server. ::>> ::>> ::>>Pat ::>> ::>> Currently the ATA through SCSI community is not affected because ::>>there is no real translation from SCSI to ATA security. ::>This could be an ::>>issue in the future when ATA pass-though is implemented. ::>> ::>> I think that we should also note that the drive need not be ::>>returned. Security Erase is used to clear the password ::>along with the ::>data. ::>>This does give the user a way to retrieve the drive if it ::>gets passworded. ::>> ::>> ::>> ::>Not as far as I understand the standard. The drive will only ::>accept the ::>Security Erase command when either the master or user ::>password is supplied. ::>In case of a virus both passwords will be set to random. ::>This was the ::>original question I asked.... :-) ::> ::>Sincerely, ::>Thomas ::>
