Page 1 of 2 12 LastLast
Results 1 to 10 of 12

Thread: Seagate NAS 4TB disk detected as 2.7TB

  1. #1

    Default Seagate NAS 4TB disk detected as 2.7TB

    One friend gave me a Seagate NAS HDD 4000GB hard disk.
    I have plug it in my PC and is recognized as 2.7TB instead of 4TB.


    Code:
    #fdisk -l
    
    .......
    
    Disk /dev/sdc: 2.7 TiB, 3000615492608 bytes, 5860577134 sectors
    Disk model: ST4000VN000-1H41 
    Units: sectors of 1 * 512 = 512 bytes 
    Sector size (logical/physical): 512 bytes / 4096 bytes 
    I/O size (minimum/optimal): 4096 bytes / 4096 bytes 
    Disklabel type: dos 
    Disk identifier: 0x00000000 
    
    DeviceBootStart       End   SectorsSizeIdType
    /dev/sdc1           1 4294967295 4294967295   2T ee GPT
    
    
    

    In this thread the disk appears as 3.7TB


    According seagate the disk is supposed to be 7,814,037,168 sectors but my system is detecting it as smaller.

    Maybe the hardware is not capable of managing it or may be other issue?

    Code:
    andromeda:~ # hwinfo --short 
    cpu:                                                             
                           AMD Athlon(tm) II X3 450 Processor, 3200 MHz 
                           AMD Athlon(tm) II X3 450 Processor, 3200 MHz 
                           AMD Athlon(tm) II X3 450 Processor, 3200 MHz 
    keyboard: 
      /dev/input/event2    MosArt Wireless Keyboard/Mouse 
      /dev/input/event7    Holtek Keyboard 
    mouse: 
      /dev/input/mice      MosArt Wireless Keyboard/Mouse 
    monitor: 
                           LG ELECTRONICS LG FULL HD 
                           BENQ G2320HDB 
    graphics card: 
                           ASUSTeK EN210 SILENT 
    sound: 
                           nVidia High Definition Audio Controller 
                           ATI SBx00 Azalia (Intel HDA) 
    storage: 
                           ATI SB7x0/SB8x0/SB9x0 IDE Controller 
                           ATI SB7x0/SB8x0/SB9x0 SATA Controller [IDE mode] 
    network: 
      eth0                 Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller 
    network interface: 
      vmnet8               Ethernet network interface 
      eth0                 Ethernet network interface 
      lo                   Loopback network interface 
      vmnet1               Ethernet network interface 
    disk: 
      /dev/sdb             WDC WD10EZEX-08W 
      /dev/sdc             ST4000VN000-1H41 
      /dev/sda             WDC WD5000AADS-0 
    partition: 
      /dev/sdb1            Partition 
      /dev/sdb2            Partition 
      /dev/sdb3            Partition 
      /dev/sda1            Partition 
      /dev/sda2            Partition 
      /dev/sda3            Partition 
      /dev/sda4            Partition 
      /dev/sda5            Partition 
      /dev/sda6            Partition 
    cdrom: 
      /dev/sr0             ASUS DRW-24B3ST 
    usb controller: 
                           ATI SB7x0/SB8x0/SB9x0 USB EHCI Controller 
                           Renesas uPD720202 USB 3.0 Host Controller 
                           ATI SB7x0/SB8x0/SB9x0 USB OHCI2 Controller 
                           ATI SB7x0/SB8x0/SB9x0 USB OHCI0 Controller 
                           ATI SB7x0/SB8x0/SB9x0 USB EHCI Controller 
                           ATI SB7x0/SB8x0/SB9x0 USB OHCI0 Controller 
                           ATI SB7x0 USB OHCI1 Controller 
                           ATI SB7x0 USB OHCI1 Controller 
    bios: 
                           BIOS 
    bridge: 
                           AMD Family 10h Processor Miscellaneous Control 
                           AMD Family 10h Processor Address Map 
                           ATI SB7x0/SB8x0/SB9x0 LPC host controller 
                           ATI RX780/RD790 PCI to PCI bridge (PCI express gpp port D) 
                           ATI RX780/RX790 Host Bridge 
                           AMD Family 10h Processor Link Control 
                           AMD Family 10h Processor DRAM Controller 
                           AMD Family 10h Processor HyperTransport Configuration 
                           ATI SBx00 PCI to PCI Bridge 
                           ATI RX780/RD790 PCI to PCI bridge (external gfx0 port A) 
                           ATI RD790 PCI to PCI bridge (PCI express gpp port F) 
    hub: 
                           Genesys Logic 4-port hub 
                           Genesys Logic Hub 
                           Linux Foundation 1.1 root hub 
                           Genesys Logic Hub 
                           Linux Foundation 1.1 root hub 
                           Genesys Logic Hub 
                           Linux Foundation 1.1 root hub 
                           Genesys Logic Hub 
                           Linux Foundation 2.0 root hub 
                           Linux Foundation 1.1 root hub 
                           Linux Foundation 2.0 root hub 
                           Genesys Logic 4-port hub 
                           Linux Foundation 3.0 root hub 
                           Linux Foundation 1.1 root hub 
                           Linux Foundation 2.0 root hub 
    memory: 
                           Main Memory 
    unknown: 
                           FPU 
                           DMA controller 
                           PIC 
                           Keyboard controller 
      /dev/lp0             Parallel controller 
                           PS/2 Controller 
                           ATI SBx00 SMBus Controller 
      /dev/ttyS0           16550A 
      /dev/input/event9    Holtek Keyboard 
    andromeda:~ #
    

    best regards


  2. #2
    Join Date
    Aug 2010
    Location
    Chicago suburbs
    Posts
    14,543
    Blog Entries
    3

    Default Re: Seagate NAS 4TB disk detected as 2.7TB

    What output do you get from:
    Code:
    gdisk -l /dev/sdc
    parted /dev/sdc print
    4T is greater than can be used with traditional DOS/MBR partitioning. To use all of that disk, you would need a GPT partition table.

    However, I'm not sure if what you are seeing is a physical problem with the disk, or is due to the way it is partitioned. That's why I would like to see output from "gdisk" and/or "parted".

    Yes, this could be a hardware problem.
    openSUSE Leap 15.2; KDE Plasma 5.18.5;

  3. #3
    Join Date
    May 2012
    Location
    Finland
    Posts
    2,089

    Default Re: Seagate NAS 4TB disk detected as 2.7TB

    Is this by any chance a Gigabyte motherboard?

    If so; http://www.hddoracle.com/viewtopic.php?f=59&t=150&p=275
    .: miuku #suse @ irc.freenode.net

  4. #4

    Default Re: Seagate NAS 4TB disk detected as 2.7TB

    Quote Originally Posted by nrickert View Post
    What output do you get from:
    Code:
    gdisk -l /dev/sdc
    parted /dev/sdc print
    4T is greater than can be used with traditional DOS/MBR partitioning. To use all of that disk, you would need a GPT partition table.

    However, I'm not sure if what you are seeing is a physical problem with the disk, or is due to the way it is partitioned. That's why I would like to see output from "gdisk" and/or "parted".

    Yes, this could be a hardware problem.

    Code:
    andromeda:~ # gdisk -l /dev/sdc 
    GPT fdisk (gdisk) version 1.0.1 
    
    Warning! Disk size is smaller than the main header indicates! Loading 
    secondary header from the last sector of the disk! You should use 'v' to 
    verify disk integrity, and perhaps options on the experts' menu to repair 
    the disk. 
    Caution: invalid backup GPT header, but valid main header; regenerating 
    backup header from main header. 
    
    Warning! One or more CRCs don't match. You should repair the disk! 
    
    Partition table scan: 
      MBR: protective 
      BSD: not present 
      APM: not present 
      GPT: damaged 
    
    **************************************************************************** 
    Caution: Found protective or hybrid MBR and corrupt GPT. Using GPT, but disk 
    verification and recovery are STRONGLY recommended. 
    **************************************************************************** 
    Disk /dev/sdc: 5860577134 sectors, 2.7 TiB 
    Logical sector size: 512 bytes 
    Disk identifier (GUID): 9F707A96-FCEF-479C-B3EF-F11FB11AFF18 
    Partition table holds up to 128 entries 
    First usable sector is 34, last usable sector is 7814037134 
    Partitions will be aligned on 32-sector boundaries 
    Total free space is 292589 sectors (142.9 MiB) 
    
    Number  Start (sector)    End (sector)  Size       Code  Name 
       1             256         4980735   2.4 GiB     FD00   
       2         4980736         9175039   2.0 GiB     FD00   
       5         9453280      7814023007   3.6 TiB     FD00   
    andromeda:~ #
    
    
    


    Code:
    andromeda:~ # parted /dev/sdc print 
    Error: Invalid argument during seek for read on /dev/sdc 
    Retry/Ignore/Cancel? c                                                     
    Model: ATA ST4000VN000-1H41 (scsi) 
    Disk /dev/sdc: 3001GB 
    Sector size (logical/physical): 512B/4096B 
    Partition Table: unknown 
    Disk Flags:  
    andromeda:~ #
    
    
    

  5. #5

    Default Re: Seagate NAS 4TB disk detected as 2.7TB

    Quote Originally Posted by Miuku View Post
    Is this by any chance a Gigabyte motherboard?

    If so; http://www.hddoracle.com/viewtopic.php?f=59&t=150&p=275
    no, it is asus. M4A77TD

  6. #6
    Join Date
    Aug 2010
    Location
    Chicago suburbs
    Posts
    14,543
    Blog Entries
    3

    Default Re: Seagate NAS 4TB disk detected as 2.7TB

    Yes, it looks like a hardware issue.

    If you have a different computer available, you could try it on that computer. If it is bad on one computer but not another, that might be a BIOS limitation. Or maybe it is a defective disk.
    openSUSE Leap 15.2; KDE Plasma 5.18.5;

  7. #7

    Default Re: Seagate NAS 4TB disk detected as 2.7TB

    Quote Originally Posted by nrickert View Post
    Yes, it looks like a hardware issue.

    If you have a different computer available, you could try it on that computer. If it is bad on one computer but not another, that might be a BIOS limitation. Or maybe it is a defective disk.

    I tried it on another computer and the same, but it was an older one (core2 duo)

  8. #8
    Join Date
    Jun 2008
    Location
    Podunk
    Posts
    29,861
    Blog Entries
    15

    Default Re: Seagate NAS 4TB disk detected as 2.7TB

    Quote Originally Posted by fperal View Post
    I tried it on another computer and the same, but it was an older one (core2 duo)
    Hi
    Part of a RAID device (FD00), if no important data to recover, I would use wipefs on each partition and the disk, then gdisk to to clear the gpt partition and re-create...

    Code:
    wipefs -a /dev/sdc5
    wipefs -a /dev/sdc2
    wipefs -a /dev/sdc1
    wipefs -a /dev/sdc
    partprobe
    gdisk /dev/sdc
    x
    z
    y
    y
    gdisk /dev/sdc
    w
    gdisk -l /dev/sdc
    Cheers Malcolm °¿° SUSE Knowledge Partner (Linux Counter #276890)
    SUSE SLE, openSUSE Leap/Tumbleweed (x86_64) | GNOME DE
    If you find this post helpful and are logged into the web interface,
    please show your appreciation and click on the star below... Thanks!

  9. #9

    Default Re: Seagate NAS 4TB disk detected as 2.7TB

    Quote Originally Posted by malcolmlewis View Post
    Hi
    Part of a RAID device (FD00), if no important data to recover, I would use wipefs on each partition and the disk, then gdisk to to clear the gpt partition and re-create...
    Why not simply create new GPT partition?

    To OP:
    Maybe disk was formatted with "GIGABYTE 3TB+ Unlock Utility" or "ASUS Disk Unlocker".
    IMHO simple recreation of GPT tables will solve this problem.

    Maybe useful: https://www.rodsbooks.com/gb-hybrid-efi/

  10. #10

    Default Re: Seagate NAS 4TB disk detected as 2.7TB

    I had connected the disk in two computers, one running OpenSuse Leap 15.2 and the other running lubuntu 18.04 in both of them
    the disk was reported as 2.7TB by fdisk. Today I was going to do something following your advices, I conected the disk in the same computer with the lubuntu but I booted it woth system rescue 4.8.0 and.....

    Code:
    root@sysresccd /root % fdisk -l
    Disk /dev/loop0: 342.9 MiB, 359522304 bytes, 702192 sectors
    Units: sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    
    
    Disk /dev/sda: 3.7 TiB, 4000785948160 bytes, 7814035055 sectors
    Units: sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 4096 bytes
    I/O size (minimum/optimal): 4096 bytes / 4096 bytes
    Disklabel type: dos
    Disk identifier: 0x00000000
    
    Device     Boot Start        End    Sectors Size Id Type
    /dev/sda1           1 4294967295 4294967295   2T ee GPT
    
    Partition 1 does not start on physical sector boundary.



    Maybe because of the fdisk version ???



    best regards

Page 1 of 2 12 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •