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External hard drive not detected or recognised

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Re: External hard drive not detected or recognised
« Reply #5 on: August 02, 2016, 07:47:09 AM »
 

Jocklad

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On this video the drive had disconnected from the sata port in the enclosure.

Was just a matter of clicking it back in.

Might help.

Jocklad
 

Re: External hard drive not detected or recognised
« Reply #4 on: August 02, 2016, 07:34:19 AM »
 

richtea

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Unfortunate as it may be, it looks like a dud. Some statistics re: reliability are quite appalling; viz. latest data on HD failure rates:

https://www.backblaze.com/blog/hard-drive-reliability-stats-q1-2016/

Moreover, Seagate:

http://www.extremetech.com/extreme/222267-seagate-faces-lawsuit-over-3tb-hard-drive-failure-rates

Commodity products do suffer from these issues - if that is a consolation.
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Re: External hard drive not detected or recognised
« Reply #3 on: August 02, 2016, 06:30:42 AM »
 

br1anstorm

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Thanks, Torreydale.  Have tried both routes. 
In Disks, the external drive simply does not appear at all.  And when GParted scans the drives, it finds only the internal hard drive /dev/sda1.  Under "Devices" in GParted, there are no 'other' devices shown:  the only options listed are "Create Partition Table" and "Attempt Data Rescue".  In GParted under View>Device Information, again only details of the internal drive are shown.  The external drive is totally invisible.....
 

Re: External hard drive not detected or recognised
« Reply #2 on: August 01, 2016, 08:01:30 PM »
 

torreydale

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After connecting your external hard drive, perhaps:
(1) In Linux Lite (2.6 and above) use the Disks program.  Menu > Settings > Disks.
(2) Within GParted, from its menu, go to GParted > Devices to see if another device is available.
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External hard drive not detected or recognised
« Reply #1 on: August 01, 2016, 07:13:47 PM »
 

br1anstorm

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I have a 'new' Iomega 320GB USB2 portable hard drive, bought some time ago and not used - I kept it as a spare.  Recently I thought to try it out - initially on an old Windows laptop.  The power light illuminated and the drive seemed to hum and vibrate (ie it seemed to be spinning).

Windows said it had 'found new hardware' and after a moment said it was 'ready to use'.  But it did not appear on the 'My Computer' screen - nor in the Windows 'disk management' screen, although it was listed under 'device manager' alongside the laptop's internal drive.

To cut a long story short, I tried connecting this external drive to other USB ports, and using another known-good USB cable.  No joy.  I then removed the actual drive (made by Seagate) and put it into a spare caddy which has a known-good USB PCB interface.  Still no joy.  I then reassembled it in its original Iomega enclosure.

Not wanting to risk a dodgy drive on my normal Linux laptop (I use Lite and Mint...)  I thought I would explore it using GParted in a Live CD session of Linux Lite on my older spare computer. I happened to have an .iso of Lite 1.08, so I ran that.

Under Linux Lite, in "System Info", the external drive does not appear as a USB device.  Under the Storage heading, the external drive does show up - listed as ST932032 SAS, vendor Seagate, SCSi Controller scsi2, Channel 0, ID 0, LUN 0 (I don't know what these details signify....).

But in GParted, the external drive does not appear at all:  only the internal laptop ("C") drive is shown, as dev/sda.

I'm not familiar with command-line working so have not ventured down that route.  But if GParted cannot see it , what does that indicate?  Is this portable hard drive just dead or faulty despite the various clues that it is running?  Is it a driver problem?  Or something else?

As I have no data on it, the fact that it doesn't work is not a disaster.  I don't want to spend ages investigating it - I am no IT expert.  But it is frustrating that I cannot seem to see, far less cure, the problem.  Before throwing this HDD away as a useless paperweight, is there anything further (and not too complicated!) I can do to diagnose or resurrect this new, unused portable drive?
 

 

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