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RESEARCH 》 Detect and Monitor Failing Harddrive in Linux - My Seagate 500GB HDD Died

My 500GB Seagate Barracuda 7200RPM hard-drive suddenly started making mild clicking noise. I found this happening since morning. I was suspicious that something wrong in this drive and when I opened the Linux Disks app, I can find the cause of this issue. The disk is increasingly getting read errors. Besides I can see various other parameters such as Power-On Hours, Temperature, Head flying hours, etc.

It is quite strange that I never much noticed this tab of a failing disk in the Disks application so thought documenting the same so that you can also monitor the health of your harddrives and SSD drives while it is still partially working. This way you may recover any important files just in case before the drive gets fatally damaged and or data gets lost/corrupt.

You can locate the Disks Application in Ubuntu as shown below:
Disks Linux Application

As you can see below I got two drives installed. One is Seagate 500GB hard drive and the other one is Transcend 128GB SSD drive. The Assessment tells you minor warnings for now such as 2 bad sectors. But it is not sufficient to monitor the drive.
Seagate Barracuda 500GB harddrive

So you can open the SMART Data & Self-Tests tab and you get in-depth SMART Attributes. In this you can find detailed information regarding drive read errors, etc, as well as some other interesting data.
Seagate Barracuda 500GB harddrive SMART Data and Self-Tests

Now let me compare the same with the working drive which is Transcend 128GB SSD Drive.
Transcend 128GB SSD Drive

You can see the SMART Data & Self-Tests tab and you get in-depth SMART Attributes of this working Transcend 128GB SSD Drive. If you notice since it is SSD drive the SMART Attributes information is bit different than the traditional Hard drive.
Transcend 128GB SSD Drive SMART Data and Self-Tests

Optionally if you do a Start Self-Test you may get updated Overall Assessment as shown below which shows SELF-TEST FAILED. This is a clear indication it is time to take backups if any, erase the drive, format the drive and purge it ASAP.
Seagate Barracuda 500GB harddrive Start Self-test

Notice the drive temperature slightly increased after the drive Self-Test.
Seagate Barracuda 500GB harddrive SELF-TEST FAILED


Here is my live-demo and detailed Youtube video-log of the same:

💎 TOFFEE-MOCHA new bootable ISO: Download
💎 TOFFEE Data-Center Big picture and Overview: Download PDF


Temas recomendados:

TOFFEE-Mocha - WAN Emulator :: TOFFEE-MOCHA-2.0.3-0-10-nov-2018-x86-64.iso ↗
Saturday' 13-Mar-2021
Download TOFFEE-MOCHA-2.0.3-0-10-nov-2018-x86-64.iso via Google Drive share: Live bootable x86-64 Debian Stretch 9.5 with light-weight LXDE UI ISO (includes source-code): TOFFEE-MOCHA-2.0.3-0-10-nov-2018-x86-64.iso You can find the source tar-ball in the /root folder. To know more about the project kindly refer TOFFEE- Mocha: News and Updates - Documentation. To know more about current specific release, objectives, features, release notes/updates, quick demo and future road-map, you can watch my video below.

TOFFEE (and TOFFEE-DataCenter) optimized Satellite (inflight/marine/defense) ISP Networks ↗
Saturday' 13-Mar-2021
TOFFEE Optimized Satellite ISP Network: TOFFEE/TOFFEE-DataCenter can be used to optimize Satellite Networks (Satellite based Internet Networks, VoIP, Data, private leased-links) as shown. Ground station transponders can be connected via array of TOFFEE Devices and in the remote CPE can have dedicated or inbuilt TOFFEE with which you can establish a WAN Optimized Satellite Network Tunnel as shown.

My Lab Battery Purchase and Service logs for Research ↗
Saturday' 13-Mar-2021
Here is a complete log of my lab battery purchase, service record which I maintain in Google drive. These I use for my home (or my family generic use) as well as a part of my home lab. I maintain a detailed log this way to monitor the failure rate of these batteries. This will allow me to select a specific brand/model which has higher success rate and to monitor any premature failure/expiry. The service log helps me to monitor and schedule the next service routine so that I can maintain these batteries in tip-top condition.

Skype VOIP Data - WAN Acceleration ↗
Saturday' 13-Mar-2021

TOFFEE Download :: TOFFEE-1.1.70-1-portable ↗
Saturday' 13-Mar-2021

TOFFEE (and TOFFEE-DataCenter) optimized Mobile Wireless Backhaul Networks ↗
Saturday' 13-Mar-2021
TOFFEE can be used to optimize expensive Wireless backhaul network infrastructure. TOFFEE can be deployed over existing slow or often outdated old backhaul networks too. This will leverage mobile ISPs and network service providers to reduce their bulk IT CapEx and OpEx Costs.

Watch on Youtube - [466//1] 158 VLOG - TOFFEE WAN Optimization Software Development live update - 6-Nov-2016 ↗


TOFFEE-DataCenter :: Optimized ISP backbone networks for countries with slowest Internet Speed ↗
Saturday' 13-Mar-2021

CDN Content Delivery Networks - Types ↗
Saturday' 13-Mar-2021

Building my own CDN - Google PageSpeed Insights - Update: 22-Jul-2016 ↗
Saturday' 13-Mar-2021
Ever since after I launched my new The TOFFEE Project website on 1-May'2016, I can see there is a steep increase in traffic. Soon after the launch when I monitored its Alexa rankings it was reporting about 12 Million or so. But once it is getting more and more traffic the Alexa rankings shot up and now currently it shows around 2 Million (as on 22-July-2016). Alexa is an excellent tool to monitor your overall website global ranking and indirectly its performance. Unlike Google Analytics which is bound one or other way into Google's SEO. Alexa gives you a second opinion about your website's growth.

iPerf Network Optimization - WAN Optimization Demo ↗
Saturday' 13-Mar-2021



Featured Educational Video:
Watch on Youtube - [435//1] 0x1d3 Who gets Laid off (or Fired) during a recession ? #TheLinuxChannel #KiranKankipati ↗

WAN Optimization Network Stack Architecture - Linux Kernel vs Intel DPDK vs Custom Packet Forward ↗
Saturday' 13-Mar-2021

Building my own CDN - Moving away from Joomla to non-Joomla website - Update: 01-Oct-2016 ↗
Saturday' 13-Mar-2021
Seems there are couple of Inmotionhosting servers are down. And one of the server includes The TOFFEE Project website hosted server. I was in touch with the Inmotionhosting team trying to resolve the same. I found a unique issue that all my website files are intact and the Joomla database. But the Joomla database tables are completely wiped out and missing. Besides there is also a sort of upgrade going on in their servers. Luckily I have the most recent backup of the entire website.

Network Latency in WAN Networks and performance optimization ↗
Saturday' 13-Mar-2021
Here is my video article on Network Latency in WAN Networks (such as long distance Satellite links, etc) and how you can optimize the same to achieve better network performance.

TOFFEE (and TOFFEE-DataCenter) deployment with VPN devices ↗
Saturday' 13-Mar-2021
In case if you need to deploy TOFFEE along with your existing VPN devices you can deploy the same as shown below. This will allow your VPN devices to encrypt your TOFFEE WAN Optimized network data. NOTE: Make sure about the VPN deployment topology done in the right order. Else TOFFEE (LAN side) may get VPN encrypted packets which may not be possible (and or difficult) to further optimize. Hence always make sure to deploy them in a topology suggested below so that TOFFEE devices are out of VPN tunnel.



Watch on Youtube - [1888//1] Deep Space Communication - Episode1 - Introduction ↗

Streaming CDN Types ↗
Saturday' 13-Mar-2021



Research :: Optimization of network data (WAN Optimization) at various levels:
Network File level network data WAN Optimization


Learn Linux Systems Software and Kernel Programming:
Linux, Kernel, Networking and Systems-Software online classes


Hardware Compression and Decompression Accelerator Cards:
TOFFEE Architecture with Compression and Decompression Accelerator Card


TOFFEE-DataCenter on a Dell Server - Intel Xeon E5645 CPU:
TOFFEE-DataCenter screenshots on a Dual CPU - Intel(R) Xeon(R) CPU E5645 @ 2.40GHz - Dell Server