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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
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