Please see below:

On 07/09/2013 06:52 PM, Nico Kadel-Garcia wrote:
On Tue, Jul 9, 2013 at 10:36 AM, Pritam Khedekar
<[email protected] <mailto:[email protected]>> wrote:


    guys,

    i have 2 tb external drive which was working fine

It may be dead. External drives are often very cheap hardwaer, basically
designed as throwaway drives.

Consumer versions often are. We use external "non-consumer" drives either for semi-archival storage or for transfer of full directory structures -- more feasible with a USB 3 interface. We typically use portable enclosures for the same quality of SATA drive that we put into workstations, typically just below the "enterprise" quality that we use in servers. We do not use enclosures that obtain power from the USB port, but rather have an external power supply connected to the same mains circuit (and safety U-ground -- USA NEMA 5-15 mains) as the machine to which we connect to minimize earth potential differences. Thus far, we have good luck with such drives, having no less reliability than those in a regular computer, provided the external drive is not subjected to impact damage. Did the post include the model and specifications for the external drive?

Yasha Karant


    now suddenly it doesn't show in my computer

    it detect as usb drive but doesn't show in my computer or in disk
    managemnet


What do "fdisk" and "parted" say about it?  And "pvscan", "vgscan", and
"lvscan" if you were using LVM partitions on it?

    i have done follow troubleshoot

    1 cant run chkdsk says can not access for write or read
    2 connected in UBUNTU / CentOS  when mounint it give error

    like run chkdsk in windows

    please guide me how to detect this hardisk in mahcine


What does "lspci" say?







    please let me what do you mean by full info

    it shows in lsusb
    Bus 001 Device 002: ID 0bc2:3300 Seagate RSS LLC

    its ext3 filesystem
    /dev/sda8 ext3 /tmp
    /dev/sda5 ext2 /opt
    /dev/sda3 ext3 /usr
    /dev/sda2 ext3 /var
    /dev/sda1 ext3 /bootDisk /dev/sda: 42.9 GB, 42949672960 bytes
    255 heads, 63 sectors/track, 5221 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes

        Device Boot      Start         End      Blocks   Id  System
    /dev/sda1   *           1          13      104391   83  Linux
    /dev/sda2              14        1798    14338012+  83  Linux
    /dev/sda3            1799        3583    14338012+  83  Linux
    /dev/sda4            3584        5221    13157235    5  Extended
    /dev/sda5            3584        4603     8193118+  83  Linux
    /dev/sda6            4604        4864     2096451   82  Linux swap /
    Solaris
    /dev/sda7            4865        4991     1020096   83  Linux
    /dev/sda8            4992        5055      514048+  83  Linux
    /dev/sda9            5056        5119      514048+  83  Linux

    Disk /dev/sdb: 2000.3 GB, 2000398934016 bytes
    255 heads, 63 sectors/track, 243201 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes

        Device Boot      Start         End      Blocks   Id  System
    /dev/sdb1               1      243202  1953512448    7  HPFS/NTFS
    [root@vinux ~]#

    my drive is formatted with NTFS  & while mount follow error

      Device Boot      Start         End      Blocks   Id  System
    /dev/sdb1               1      243202  1953512448    7  HPFS/NTFS
    [root@vinux ~]# mount -t ntfs-3g /dev/sdb1 /media/
    The disk contains an unclean file system (0, 0).
    The file system wasn't safely closed on Windows. Fixing.
    ntfs_attr_pread_i: ntfs_pread failed: Input/output error
    Failed to read NTFS $Bitmap: Input/output error
    NTFS is either inconsistent, or there is a hardware fault, or it's a
    SoftRAID/FakeRAID hardware. In the first case run chkdsk /f on Windows
    then reboot into Windows twice. The usage of the /f parameter is very
    important! If the device is a SoftRAID/FakeRAID then first activate
    it and mount a different device under the /dev/mapper/ directory, (e.g.
    /dev/mapper/nvidia_eahaabcc1). Please see the 'dmraid' documentation
    for more details.



    if i connect in windows it ask to format disk



    this is my fdisk -l output


    pLEASE ADVISE GUIYS

    --







    Thanks & Regards,****
    Pritam Khedekar | Sr. Engineer - Technical,
    Vistaas Digital Media Pvt. Ltd. | Mumbai
    Tel: + 91 90 22 25 54 20 <tel:%2B%2091%2090%2022%2025%2054%2020>
    Web: www.vistaas.com <http://www.vistaas.com/> | www.divineindia.com
    <http://www.divineindia.com/>
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