I have a 3TB drive attached via SATA, with independent PSU. Despite my best efforts I cannot get it to be recognized as anything more than 801GB/746GiB. This drive works in another machine fine. I tried a low-level wipe (dd if=/dev/zero of=/dev/sda bs=1M), as well as creating new GPT partition tables.

 

hdparm -I does correctly report info, but `cat /sys/class/block/sda/queue/physical_block_size` reports block size at 512. Any thoughts?

 

 

 

 

 

 

Device Details:

Orange Pi+ 2

Armbian Debian 3.4 image

Linux XX 3.4.113-sun8i #10 SMP PREEMPT armv7l GNU/Linux

WD 3TB Green (WD30EZRX)

OS installed on eMMC on system

 

 

 

 

 

Excerpt from kernel log when attaching drive:

[    4.534594] sd 0:0:0:0: [sda] 1565565868 512-byte logical blocks: (801 GB/746 GiB)
[    4.550334] sd 0:0:0:0: [sda] Write Protect is off
[    4.561887] sd 0:0:0:0: [sda] Mode Sense: 03 00 00 00
[    4.562827] sd 0:0:0:0: [sda] No Caching mode page found
[    4.574843] sd 0:0:0:0: [sda] Assuming drive cache: write through
[    4.590700] sd 0:0:0:0: [sda] No Caching mode page found
[    4.623980] sd 0:0:0:0: [sda] Assuming drive cache: write through
[    4.698642]  sda: sda1
[    4.702202] sd 0:0:0:0: [sda] No Caching mode page found
[    4.702214] sd 0:0:0:0: [sda] Assuming drive cache: write through
[    4.702226] sd 0:0:0:0: [sda] Attached SCSI disk
 

 

 

 

 

hdparm -I :

ATA device, with non-removable media
        Model Number:       WDC WD30EZRX-00MMMB0
        Serial Number:      WD-WCAWZ1242100
        Firmware Revision:  80.00A80
        Transport:          Serial, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6, SATA Rev 3.0
Standards:
        Supported: 8 7 6 5
        Likely used: 8
Configuration:
        Logical         max     current
        cylinders       16383   16383
        heads           16      16
        sectors/track   63      63
        --
        CHS current addressable sectors:   16514064
        LBA    user addressable sectors:  268435455
        LBA48  user addressable sectors: 5860533168
        Logical  Sector size:                   512 bytes
        Physical Sector size:                  4096 bytes
        Logical Sector-0 offset:                  0 bytes
        device size with M = 1024*1024:     2861588 MBytes
        device size with M = 1000*1000:     3000592 MBytes (3000 GB)
        cache/buffer size  = unknown
Capabilities:
        LBA, IORDY(can be disabled)
        Queue depth: 32
        Standby timer values: spec'd by Standard, with device specific minimum
        R/W multiple sector transfer: Max = 16  Current = 0
        DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 *udma4 udma5 udma6
             Cycle time: min=120ns recommended=120ns
        PIO: pio0 pio1 pio2 pio3 pio4
             Cycle time: no flow control=120ns  IORDY flow control=120ns
 

 

7 minutes ago, Peter_1 said:

I have a 3TB drive attached via SATA

 

Most probably not. Orange Pi Plus 2 has no SATA, just a crappy/broken/ultra-slow USB-to-SATA catastrophe called GL830: http://www.cnx-software.com/2017/03/16/suptronics-x800-2-5-sata-drive-expansion-board-and-cases-for-raspberry-pi-23-and-odroid-c2-boards/#comments

OK, well it should be slower than crap but should still recognize the drive correctly, right?

No idea, the same crappy IC is on a Banana Pi M3 and there a connected WD with 4TB and a 3TB Seagate were recognized. IMO you should forget about the 'SATA connector' and better choose an external enclosure with some of those chips here: http://linux-sunxi.org/USB/UAS