Rajib's Blog Blog

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File Distribution by Size

The Allocation Unit determined by Microsoft Windows is not optimised and may result in either sub-par data transfer performance or tremendous wastage of disk space. In one case, I stood to loose 34% of my disk space due to incorrect choice of Allocation Unit size.

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Analysis of File sizes on disk

Generating a database compatible folder and file list without using 3rd party applications exceedingly difficult in Windows. Even after 40 years of evolution, it still lacks core command line tools that are the staple of Unix. The FORFILES command can is a useful utility which can provide useful information to analyze the files on your computer and work out strategies for backup and cleanup.

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Seagate Rosewood Drive Failure

Seagate Rosewood series drives are used extensively by manufacturers of laptops, external disk drives etc. Now that these are about 2 years old, alarmingly most of them are failing. Seagate does not provide warranty to end-users and most of us maybe facing imminent critical data loss.

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Realtek 8188FU USB WiFi Adapter on Raspberry Pi

The Realtek 8188FU chipset is used in a number of generic low-cost USB Wireless Adapters. It supports 802.11n standard, operates at 2.4 GHz and 150 Mbps connectivity. Unfortunately, it is not supported by default in the current Linux kernel 4.x series. This article chronicles my adventures to get it working on Raspberry Pi.

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Lenovo Laptop Caught in Windows 10 Repair Loop After BIOS Update

If your laptop is caught in an infinite Windows 10 Repair loop, and you noticed that it happened particularly after you updated the BIOS, the fix is a BIOS settings change. Too many times, users have been caught unaware and ended up formatting and re-installing the OS or even send the machine to a repair center for a paid service. Read on to discover this simple fix that could possible save hours of frustration and even some money.

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The Nikon Z Shortcomings

Nikon has released its Z series Full-frame Mirror-less cameras and while there is significant excitement about the new system, it is also being criticised by professional photographers in the media.
While the shortcomings may be real, potential solutions exist for some now, some solutions exist hypothetically and some things we are just going to have to get used to.

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Script to Stress CPU and Log Temperatures

I keep tinkering with computers, be it Servers, Desktops, Laptops or Single Board Computers like the Raspberry Pi. Of keen interest to me is the thermal performance of these devices. Most new devices implement...

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Batch file to keep HDD awake

If like me you have a bunch of external HDDs connected to your system, you are probably facing a similar irritant. External HDDs are configured in firmware to switch to low-power mode within a few minutes if idle. In this mode, the disk spins down and eventually stops. Accessing the disk causes a slight delay as the HDD must spin up again to full-speed and locate the sector on which your data is located.

Apart from the delay, the spinning up of the HDD spindle and raising of the head from it’s parking position to the data area of the disk causes significant clatter and mechanical wear and tear. The S.M.A.R.T. values also get incremented it appears that the HDD was being abused with repeated unplugging and plugging.

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Workaround to VBoxTray.exe using excessive CPU Issue

It is a long running bug in VirtualBox that if “Guest Additions” are installed in Windows Guest OS, after a while the OS seems to hand with extremely sluggish behaviour. The task-manager shows VBoxTray.exe as the culprit with 100% CPU usage. A work-around exists that allows continuing usage of the VirtualBox without giving up on it.

Comparison of Linux Lite 4.0 with Ubuntu 18.04 1

Comparison of Linux Lite 4.0 with Ubuntu 18.04

My good ol’ Acer Aspire 5745 laptop featuring Intel Core i5-450M processor with 8 GB RAM, 320 GB HDD, 15.6″ LED display and Atheros Wi-Fi 802.11g came without licensed Windows OS and does not...