taskThe GNU Hurd - Tasks: task #7489, Support LBA48

 
 

task #7489: Support LBA48

Submitted by:  Samuel Thibault <sthibaul>
Submitted on:  Fri 23 Nov 2007 12:01:27 AM UTC  
 
Category: GNU MachShould Start On: Thu 22 Nov 2007 11:00:00 PM UTC
Should be Finished on: Thu 22 Nov 2007 11:00:00 PM UTCPriority: 5 - Normal
Status: NonePrivacy: Public
Percent Complete: 0%Assigned to: None
Open/Closed: OpenPlanned Release: None
Effort: 0.00
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Sat 29 Jun 2013 08:22:47 PM UTC, comment #1:

Note: the ahci driver has lba48 support. The Mach interface is still
limited to 32bit sector count, however.

Samuel Thibault <sthibaul>
Project Member
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Anonymous
Fri 23 Nov 2007 12:01:27 AM UTC, original submission:

The current Linux ide driver only handles LBA28, i.e. 2^28 sectors = 128GB. Sectors above can't be reached by GNU Mach, LBA48 is needed for this. That means checking that the drive supports it (should anyway), and just use the LBA48 versions of read/write. That should push the limit to 2TB, since sector numbers are stored as unsigned ints

Samuel Thibault <sthibaul>
Project Member

 

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