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Tech Tips, Tricks & Trivia

by 'Anil' Radhakrishna
An architect's notes, experiments, discoveries and annotated bookmarks.

Search from over a hundred HOW TO articles, Tips and Tricks


This Week I Learned - Week #274

This Week I Learned -

The Azure Dv3 & Ev3 family of VMs use Hyper-Threading. This is something to note for those concerned  with  Oracle cloud-licensing.

After a VM  is created, you can add or remove a NIC (unless it's the last NIC on the VM)

Managed disks provide better reliability for Availability Sets by ensuring that the disks of VMs in an Availability Set are sufficiently isolated from each other to avoid single points of failure

Microsoft recommends using a separate storage account for each VM in an Availability Set.

Azure uses Live Migration technology to migrate the Virtual Machines from the failing hardware to a healthy physical machine. Live Migration is a VM preserving operation that only pauses the Virtual Machine for a short time. Memory, open files, and network connections are maintained, but performance might be reduced before and/or after the event. In cases where Live Migration cannot be used, the VM will experience Unexpected Downtime

If you use older VM series or sizes, such as Dv1, DSv1, Av1, D15v2, or DS15v2, consider moving to newer versions.

Running an Application Gateway cloud service with only one instance is not recommended due to the lack of high availability. Microsoft guarantees that each Application Gateway service having two or more medium or larger instances will be available at least 99.95% of the time but they do not provide an SLA for Application Gateway services with only one instance or with small instances. Also, a partial hour is billed as a full hour.

* Azure Immutable Blob Storage meets the relevant storage requirements of three key financial industry regulations: the CFTC Rule 1.31(c)-(d), FINRA Rule 4511, and SEC Rule 17a-4. Financial services customers, representing one of the most heavily regulated industries in the world, are subject to complex requirements like the retention of financial transactions and related communication in a non-erasable and non-modifiable state. These strict requirements help to provide effective legal and forensic surveillance of market conduct.

* YouTube - Walkthrough of the tools in the SysInternals Suite

Microsoft Professional Program for Entry Level Software Development track curriculum consists of massive open online courses (MOOC) which are available on edX.org

Running your air conditioner (AC) at 27°C vs 18°C can cut your electricity bill by over 30%

Food labeled U.S.D.A. organic has to meet a set of publicly available standards. Farms that receive that United States Department of Agriculture’s organic stamp also have to undergo a rigorous application and certification process, which takes about five years to complete. Many small, local farms don’t have the resources to complete the application, even if they do use organic processes - NY Times

* New Zealanders are now the largest group inside Australian immigration detention centers

* Manjeet Hirani,a senior commander and trainer with Air India and wife of Bollywood director, Raju Hirani is the author of How to be Human: Life lessons from Buddy Hirani

Google Tez works with all banks in India that support BHIM UPI.

Immediate Payment Service (IMPS) is an instant inter-bank electronic fund transfer service available 24x7, throughout the year including Sundays and any bank holiday. The beneficiary account is credited immediately when a Fund Transfer request is made through Mobile phone / Internet Banking. Customers can transfer and receive funds via IMPS using their registered Mobile number and Mobile Money Identifier (MMID) or using their Account number and IFSC code.

* ..Bad news is that I have to spend three or four days in the company of my second son.... I have two sons. One fellow is in U.S. Doing respectable job. Other fellow is in Chennai and working from home. What is he doing? Nobody knows. Mrs. Mathrubootham is always insisting, why don’t you suddenly go into his bedroom without warning and see what is going on. Maybe he is doing some criminal activity?Quiche quiche hota hai: Mr. Mathrubootham bemoans cooking experiment

According to the data available on the Income Tax Department’s website, till 31 March 2018, about 379 million Permanent Account Numbers (PAN) were allotted to various entities. Out of these, 369 million or 97.46% PANs were allotted to individuals. However, irrespective of the fact that you have been allotted a PAN, it is not mandatory to file income tax return if your income is less than the basic exemption limit. But it is mandatory to have a PAN card to file an ITR. In FY 2017-18, about 67 million returns were filed, which is about 18% of the total PAN allotted - Financial Express

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