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SATA HDD capacity limitation is??

Max Chou64985
Prodigy 30 points

Hi All

 

Does anyone test the 2TB HDD in EVM?

Current driver could support 2TB ?

 

Best regards

Max

 

 

  • 0
    TI__Mastermind 43875 points

    Yes, it is about the type of addressing and associated command used (28-bit addressing & Commands Vs 48-bits addressing & Commands) used by the driver. Since the unit is in sector (which is 512 bytes), this result with 137.4GB of data for 28bit addressing and 144,000,000 GB of data for 48bit addressing. So 2 TB is a drop in a bucket. (Thanks Zegeye)

    I believe the Linux PSP and other kernels support 48 bit addressing, but you should check with your OS support for confirmation.

    What is your OS and where are you obtaining it?

    BR,

    Steve

  • 0 in reply to Steve Clynes
    Prodigy 10 points

    Hi Steve,

    I got a same question about totally HDDs capacity limitation in the DM8168 solution.    

    Thank you for your explaining that DM8168 SOC can be used 48 bits addressing for the HDD capacity.

    As I know, We used that TI Linux PSP version is 04.00.00.10 and TI Linux SDK version is 5.00.00.11 both.

    (1) Have any problem when a big RAID (totally HDD space is 32TB) is connected by the eSATA of DM8168 ? 

    (2) Is it can supporting the 48 bits LBA addressing ? 

    (3) Where can find the 48 bit addressing description in the Linux kernel source code?

    Best regards,

    Robert