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 Mach Should Start On:  Thu 22 Nov 2007 11:00:00 PM UTC
Should be Finished on:  Thu 22 Nov 2007 11:00:00 PM UTC Priority:  5 - Normal
Status:  None Privacy:  Public
Percent Complete:  0% Assigned to:  None
Open/Closed:  Open Planned 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 Administrator
  Spam posted by 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 Administrator


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