Types of Hard Drive failure Modes

There are various ways in which your hard drive may fail; these situations are usually known as failure modes and identifying the failure and its cause is known as failure determination. Head Crash is one of the most common way in which your hard drive can fail.

In fact, the head crash is an ‘airline disaster’ of hard drive world; it is dramatic, feared, and well-known. Such disaster leads to any sort of data loss and require Data Recovery solutions to be handled.

Some common types of hard drive failure are:

  1. Logical Failure: These include hard drive data structure corruption, virus infection, hard drive formatting, file system corruption, operating system malfunction, and accidental deletion. If there is a logical failure, then your critical data becomes inaccessible and you encounter significant data loss situations.
  2. Mechanical Failure: These include the physical component failure mostly due to actuator arm or spindle motor which causes excessive heat, motor burnout, stuck bearings, and vibration.
  3. Read/Write Head Failures: These include head contamination, head manufacturing defects, improper flying height, bad wiring among logical board and head, and exuberant read/write errors. All these failure situations comprise a high percentage of total number of disk failures.
  4. Firmware or Logic Board Failure: They are related to the integrated circuit board of the hard drive, its chips, circuits, other components, and firmware (software routines) that runs it.
  5. Media Failure: This category of issues relates to difficulty with hard drive platters and magnetic media, servo operation, formatting, and more. It includes the hard drives, which fail due to poor handling, read/write errors, low-level formatting errors, and scratches on media surface.

Nevertheless the failure mode and failure determination, ultimate result is some sort of data loss. In such situations, backup proves a real help. However, if the backup is not available, you need to opt for Data Recovery methods to extract lost data.

In case of logical failure, you can get your data back in a quick and easy way through Data Recovery Software. On the other hand, mechanical failure, media failure, firmware failure, and read/write head failure like circumstances need special assistance from Data Recovery Service professionals, to be sorted out.

Source : TRCB

Advertisements

Microsoft introduces Windows 7 Test Drive !!

For users who are currently on older Windows editions or other OS and are keen on trying Windows 7 first before installing it on their system. Microsoft has introduced and great option here to experience the Widnows 7 experience in the form of a Virtual Lab.

To experience the Windows 7 Test Drive or or Virtual lab, all you need is IE 6.0 or later and must be on Windows 2000, XP, Server 2003, Vista or 7. Some more important requirements as explined on the Windows 7 Professional test drive website are:

Screen Resolution:  The Virtual Demo sessions are best viewed at a screen resolution of 1024×768 or greater. Otherwise you may experience clipping of content.
Cookies Enabled: You must have cookies enabled to run these Virtual Demo sessions.
ActiveX Control: The Microsoft “Virtual Machine Remote Control” Active X control is required by this site. If you do not have it installed, you will be asked to when launching the Virtual Demo. There are instuctions relating to this located during the install.
Firewall: Connecting to the Virtual Demo sessions require that you have port 443 open. Please see your network administrator for assistance.

Some key points to remember:

  • Since its a virtual lab installed on older Microsoft virtualization technologies, so dont expect Aero features
  • Also since you are connecting to a desktop over the internet, your internet bandwidth will play an important role in the performance that you will get while working on this Virtual Lab. Which may cause some latency while operating on Windows 7
  • Clipboard access is only from host computer to Windows 7 virtual machine and not the other way around
  • No internet access (atleast I couldn’t figure that out)

Website : Windows 7 Professional Test Drive

Exchange 2007 and 2010 help files

The Exchange Server Help can help you in the day-to-day administration of Exchange. Use this information to guide you through Exchange Server 2010/2007 features, tasks, and administration procedures.

1. Exchange 2010

Updated Standalone version of Microsoft Exchange Server 2010 Help file (CHM) is now available to download. This Help content is also available online from the Exchange 2010 TechCenter. Its updated on 8th February 2010 and the file size is around 15MB.

Download : Exch2010Help.exe

2. Exchange 2007

Along with the Exchange 2010 help, Microsoft also released an updated Exchange Server 2007 SP2 Standalone Help File (.chm) for download.Its updated on 3rd February 2010 and the file size is around 21 MB.

Download : ExchHelp.exe

Note : The self extractor default install location is C:\Program Files\Microsoft\Exchange Server\Bin. To view the most recent version of the Help file within Exchange Server, be sure to extract the Help file (exchhelp.chm) to the folder where the Help file is currently installed. You can search your local drive to find the location where the Help file is installed (typically C:\Program Files\Microsoft\Exchange Server\Bin).

Zeollar

Zeollar is a Microsoft India DPE initiative that gets you the latest technical content on a daily basis in different channels. Think of it like a personal television that switches on every day at a specified hour allowing you to switch channels and view the channel of your interest.

The quality of the videos present on the site are awesome, but do remember that it will need a good bandwith speed to play the streaming videos.

The website has vidoes starting from 1st Feb 2010., and you will find 1 session per day. One can also add the events to his calender on Outlook (.ics) using the schedule option, so as to not miss any of the sessions.

As of now the media present on the site is only for the Delevopers. But they would be soon coming up with contents for Archtects, Designers and IT PROs.

The website also have an integration for Facebook and Twitter.

HomePage : Zeollar

Various Microsoft product codenames

There are many products that Microsoft has released over the years, and each one of them had a code name before they were released. I was not aware of all the code names of the Microsoft products, except for the popular ones like Longhorn, Chicago, Whistler.

A bunch of them are listed below, for the entire list check out Channel9.

Code Name Generally Known as

Asteroid

Windows 2000 SP1

Aero

UI in Windows Vista

Bearpaw

Windows Terminal Services for Windows Server 2003

Blackcomb

Windows Server 2008

Bobcat

Windows Server 2003 Small Business Edition

Chicago

Windows 95

Daytona

Windows NT 3.5

Detroit

Windows 95 OSR 2

Freestyle

Windows XP Media Center Edition

Frosting

Windows 95 Plus!

Harmony

Windows XP Media Center Edition 2004

Impala

Windows NT4 Embedded

Indigo

Communications services used in Vista, also called WCF(Windows Communication Foundation)

Janus

Windows 3.1

Lonestar

Windows XP Tablet PC Edition 2005

Longhorn

Windows Vista

Mantis

Windows XP Embedded 5.1

Memphis

Windows 98

Millenium/Georgia

Windows ME

NAS 3.0

Windows Storage Server 2003

Nashville

Internet Explorer 4, for Windows 95

Slalom

Windows Media Center for Vista

Sparta

Windows for Workgroups 3.1

Snowball

Windows for Workgroups 3.11

Sundown

Windows XP 64-bit

Symphony

Windows XP Media Center Edition 2005

Whistler

Windows XP

Windows

Windows 1.0

Windows 286

Windows 2.0

Microsoft Small Basic

Microsoft has recently released a new programming language, which is pretty simple and will help teach programming to beginners.

It is aimed at making computer programming accessible to beginners. The project comprises a simple programming language that gathers inspiration from the original BASIC programming language; a modern and attractive programming environment; and rich, extensible libraries. Together they make programming fun for kids and adults alike.

Download : Microsoft Small Basic

TwitOnMSN – Use Twitter on your MSN!

One can now send and receive tweets using MSN messenger. Well there are many desktop clients which does the same job also few outlook addins. But when it comes to MSN Messenger we have a bot : TwitOnMSN which integrates an API into twitter account and link it to your msn messenger account.

Setting up TwitOnMSN is pretty simple.

  • One needs to add TwitOnMSN@Live.com as a contact to your MSN Messenger.
  • Then the bot, sends a invitation from twitonmsnXXX@live.com (where XXX can be any number) which becomes the bot.
  • This is the bot which will allow you to connect to Twitter.
  • A link would be provided by the bot to authorize winOnMSN to access your Twitter account, which will take you to the Twitter website.
  • Once you are authorized, all you have to do is just type into MSN Messenger’s chat window whatever you want to which gets posted as a tweet.
  • The bot also keeps sending you every single tweet on to your messenger chat window.
  • One can
    • Sent new tweets
    • Reply to tweets
    • Retweet
  • If one drag and drops a picture file into the chat the image, then its posted along with a tweet.
  • Also we can send a direct message by typing in the following format : “d username content” .

Homepage : TwitOnMSN