Making A Tape Dump,
When you have backed up meticulously every day for the last 5 years, then you find that when you need the backup, you discover the tape wont let you because of a tape error.
So what can you do. There are many software options for backup data recovery, but most of these only work on backup files, so how do you recover data from a tape?
Data Recovery Engineering Software Limited write software mainly for data recovery companies, and one of their titles is a very affordable tape dumping tool.
The software creates an image file of the data on the tape to hard disk. Now you are able access the data on the tape and recover it with your backup recovery software.
Other uses are when someone has created a backup set that you need to access, but it is password protected (not encrypted) and the user cant remember the password or no longer works for the company. Or a forensics examiner needs to look at the data stored on the tape but does not have access to the software used to create the backup.
Overview Of Voice Over Ip Technology
Voip sends your phone call through the Internet
A Voip router is a very small device that is used by the majority of Voip users to make calls over the Internet. One of the main differences between traditional telephones and Voip is that traditional phone signals are analogue and are sent physically through wires. Voice over IP sends a digital signal and sends it as packet data through the Internet. Therefore, for a person to continue to use the same phone that they have always used for voice over IP calls, they need a device to convert their analogue signal to a digital signal. This is what the Voip router is designed to do.
Voip technology is advancing rapidly
Digital phones allow Voip users to plug directly into their Internet connection or their computer to make telephone calls, thus eliminating the need for a router. Furthermore, it will only be a matter of time before our homes are fully networked for Internet access in every room, thus making IP calls easier and the delivery of other services that will soon be provided through the Internet.
Make your move to Voip as soon as possible
Voip is the telephony of the future. This is indicated by how the large traditional phone companies have all converted over to this technology. What you can expect with a switch to Voip is much lower telephone bills and the closest communication with long-distance family members and loved ones than you have ever known. When they say that the world is getting smaller, it can now truly be seen.
Voip is easy
Although many people fear new technologies or are slow to convert over to a new way of doing things because they are so comfortable with the old, Voip calls is something that you should switch over to without hesitation. Of course, the voice over IP company that you choose to work with is your decision. Just understand that any switch to Voip is better than not switching. For those that hate new devices and new gadgets, a Voip router makes everything so simple and easy to use. Basically, a voice over IP router will have a socket for you to plug your phone into and another socket for you to plug your internet connection in to. Once you plug in those two things, you will never have to think about your VoIP router again. Now, that is simplicity!
Jim Francisto
Recovering Data From Hard Disk Drives
Overview
Modern computer system hard disks can contain a massive amount of data. So when the hard disk drive fails, and there are no recent backups available, data recovery is the only option available.
Introduction
A hard disk drive consists of a number of component parts. Each of which has its own failure modes.
1. Electronics
2. Mechanics
3. Firmware
4. Logical
Electronics
The circuit board on a hard disk is the ‘brain’ of the hard disk drive and a single component failure will render the drive useless. Recovering data from hard disks with electronics failures requires highly skilled electronics engineers who are able to fix the drive temporarily in order to recover the data.
There are also electronic parts inside the hard disk drive that are critical for the correct operation of the hard disk drive and consists of the head pre-amplifier circuit.
Mechanical
The critical mechanical parts of a hard disk drive comprise of, the actuator arm, the motor and the platters. (There are other Mechanical parts, vibro-acoustic components, filters, VCM Magnets, etc, but these are less critical).
The majority of mechanical failures involve the Head pre-amplifier. Whilst this is not exactly a mechanical failure, the method that the head pre-amp is attached to the head stack means that when it fails it involves the replacement of the entire head stack assembly.
The next biggest cause of failure is motor failure. This is a very significant problem and requires specialist equipment so that platter alignment is not lost when removing and replacing the motor. Main problems with motors are burnt out coils and seized bearings.
Firmware
The firmware region or System Area (SA) is a region on the hard disk drive where the manufacturer’s proprietary information such as
- Operational code
- Self test logs
- Grown Defect Maps
- ROM overlays.
- ROM Overlays
- Security Data
- Head maps
- Primary Defect Maps
and many others
For a hard disk drive to function properly it is vital that the Firmware Zone is error free. Working on the Firmware on a hard disk drive is a highly skilled job and requires specialist equipment. Making a mistake when modifying the information in the Firmware of a hard disk can render a drive useless.
Logical
Logical problems are where there is nothing physically wrong with the hard disk drive and it is fully functional. Logical problems are where data has become inaccessible for some reason, for example, the user has deleted the files, the computer has come under virus attack. The skill set of the engineer requires experience of how the operating system that the files were stored on works. Also, knowledge of the file format for different file types so that quality of files can be determined on a bulk and individual basis.
Recovering Data from Hard Disk Drives
MjM Data Recovery Ltd