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To all who answered my question, thanks. I have posted my question to some people since I think the subject of my previuous e-mail is not interesting to T13 group. Anyway, thanks again. The reason of asking that is because a 48-bit LBA address will not fit in the two partition table fields that deal with: partition first sector field and partition length field. Both are 32-bit long, so... It's true, there's not a HDD with a 33-bit quantity of LBA sector or more yet, but it is just a matter of time. Even the 32-bits LBA address being enough for some time, I guess that someone could already be studying a new partition table format. A lot of bits is being wasted on CHS related fields. There's a moment when a backward compatibility is harmful to the evolution. Best regards. ........................................................................ Perito S�rgio Raposo - Niter�i - RJ (Brazil) ........................................................................ (see english version of this signature below) Resgate cient�fico de arquivos, per�cia investigativa de dados, quebra �tica de prote��o e desenvolvimento de software b�sico. http://www.recuperacaodedados.com.br http://www.periciadigital.com.br telefone:_______0**21 2611-4209, 2610-5070 celular:________0**21 9136-4003 fax:____________0**21 2611-4209, 2610-5070 e-mail:[EMAIL PROTECTED] Aviso: o conte�do deste e-mail � exclusivamente direcionado ao(s) destinat�rio(s) explicitamente arrolado(s) e unicamente para seu conhecimento. Exceto sob permiss�o expressa, � desautorizada sua divulga��o e/ou c�pia, parcial ou integralmente, em qualquer m�dia que franquie o acesso a terceiros, intencional ou acidentalmente. Se esta mensagem foi erroneamente recebida, por gentileza, apague-a. ........................................................................ Scientific data rescue, forensic disk analisys/computer evidence, password/protection ethical cracking and low-level/system programming. http://www.recuperacaodedados.com.br http://www.periciadigital.com.br phone:__________+55 21 611-4209, 610-5070 cellular phone:_+55 21 9136-4003 fax:____________+55 21 611-420, 610-5070 e-mail:[EMAIL PROTECTED] Notice: this e-mail content is exclusively addressed to the one(s) explicitly listed and uniquely for awareness purpose. A partial or integral reprodution of this content is not authorized if the copy will be accessable for anyone else, either intentionally or accidentally. If this message was improperly received, please, delete it. ........................................................................ -----Mensagem original----- De: [EMAIL PROTECTED] <[EMAIL PROTECTED]> Para: [EMAIL PROTECTED] <[EMAIL PROTECTED]>; [EMAIL PROTECTED] <[EMAIL PROTECTED]> Cc: [EMAIL PROTECTED] <[EMAIL PROTECTED]> Data: Ter�a-feira, 12 de Fevereiro de 2002 13:22 Assunto: Re: [t13] FW: 48-bit address implications on partition table > From: sraposo [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, February 12, 2002 9:11 AM > To: [EMAIL PROTECTED] > Subject: 48-bit address implications on partition table > > Dear Mr. Mclean, > > I have a forensics-related business and I would like to know if there > already is some defined standard about a partition table that handles > partition initial LBA address on 48-bit format, since the tradition > partition table handles only 32-bit adresses. ATA-6 is already available > and I guess that there must be some HDD manufacturer about to lauch some > model over 137GB. So, it is a kind of urgent matter. > >Not really. The CHS part of a partition table entry used >24 bits and was good only up to 8 GB. >The LBA part uses 32 bits and is good up to 2 TB. > >So, no, nothing changed now that we have 160 GB disk drives. > >On the other hand, yes, there are new standards. >In my opinion that is not a topic for t13. >Disk labels and the like are a pure software matter. >It is bad enough that many BIOSes look at the MBR and expect >a partition table there. > >Andries Subscribe/Unsubscribe instructions can be found at www.t13.org.
