Tuesday, March 3, 2009

Backup But Where To

Writen by Lynn Chan

We all know we have to backup regularly, but those backups files can get huge. Add that to your existing your files and your notebook computer hard drive seems to have shrunk overnight. No matter what size hard drive you have on your notebook computer, space is a premium. Besides, it's not exactly a good idea to store your backups on the same hard drive since you can't retrieve it -- rather defeats the purpose of backing up don't you think? So what do you do, what are your options?

Backup to an external hard drive. This is probably the quickest, most cost effective option. You can often get a removable drive on sale or with rebate for a low price too. You can get one with hundreds of Gigabytes of space too. They can be easy to hookup to your notebook computer. However, do remember that they are hard drives and hard drives can fail. You may find the external backup fails before your notebook computer does.

Online backup. This is actually a good idea because physical disasters can happen to your home. And when that happens, you will always have a copy in a place not affected by the disaster. This is why businesses usually have one backup in the premises and one (or more) off premises. The good thing about online backup is, it's accessible from anywhere with an internet connection. So if your notebook fails when you're away from home, you can still retrieve your data.

Many of these services are reasonably priced and they provide you with everything you need to get the backups safely transfered. But because your data will be on someone else's system, choose a reputable company, one who is not only established but takes customer data confidentiality very seriously.

Network attached storage. This would make more sense if you have several computers. They allow you to not only backup several computers' data into one location but also ability to share or retrieve files from that central area. You can also achieve a similar effect equipping an older computer with a large hard drive and use it just for storage or backup.

Backup to CD or DVD. This is considered the safest for long term data integrity. External drives and network storage can still crash and prone to virusses. CD's and DVD's are also inexpensive. But backing up to disks daily is chore as you'll find yourself having to manually pop in the disks. It becomes even more hard work when you have a lot of files and your backup spans several disks. The other problem with this method is, backup utilities that come with your operating system cannot backup to a CD or DVD drive. So you'll have to fork out extra cash to buy a third party backup software that will.

No backup solution is one hundred percent and what you choose of course will depend on how you work. If your data is really important to you, try not rely on one backup source. Create two separate sources if you can afford to, just in case.

Lynn Chan helps new owners learn proper notebook care and use. Start taking care of your investment, with this free course 5 Days To A Healthier Notebook Computer http://www.notebook-computer-infocenter.com/5days-to-a-healthier-notebook.html

Monday, March 2, 2009

Computer Data Backups Test Now Or Cry Later

Writen by Joshua Feinberg

If you're like most small business owners, your computer data backups are one of those things that you rarely pay attention to. Computer data backups are kind of like flossing your teeth and eating low-fat, high-fiber foods… everyone knows what they're supposed to do… but how many REALLY do these things religiously?!?

Unfortunately when it comes to your computer data backups however, complacency can be very dangerous. Of course, it's always a good idea to have a local computer service company that you can rely on for advice on selecting and maintaining your computer data backups. But, unless you're prepared to put a full-time PC support person on your company's payroll, it's really important that you get some basic understanding of the major issues with computer data backups.

So here's a compilation of some really crucial tips on computer data backups that I've put together, after nearly 15 years of helping small businesses protect their valuable computer data files.

Test your computer data backups regularly and monitor their log files.

To be effective, computer data backups must be highly automated to ensure that jobs are launched consistently and correctly, but your computer data backup system also needs to be watched over diligently to make sure it continues to function reliably.

Unfortunately, monitoring the computer data backup system generally isn't a priority until something goes wrong. By then it's too late…. Like the article title says, "Test Now or Cry Later!"

People have a strong tendency with a computer data backup system to set it and forget it. Automation clearly has many benefits, but a totally hands-off approach can be very dangerous if no one is overseeing your computer data backup process.

Test and Then Test Again: VERY Important with Computer Data Backup Systems

With any newly installed computer data backup system, don't assume everything works correctly right out of the box. Even more important, don't take for granted that your backup system will continue working indefinitely. You need periodically to restore some folders and files from your backup media to validate that your computer data backup system still works.

If your automated computer data backup routine is configured to include a verify run with each backup job, testing a sample restore job monthly should be adequate. However, if you have an extremely low tolerance for risk, you may want to simulate a sample restore job once a week.

The Hazard of Moving Parts and Open Design with Computer Backup Systems

Why do you need to take these precautions if you're purchasing a reliable, business-class computer data backup system to start with? Typically, a tape drive or other backup device is one of the few components in a PC or server that still have moving parts.

As a result, it's more prone to mechanical failure. In addition, because a backup device generally is open, as opposed to the sealed design of a hard drive, it's easy for the inside of the computer data backup system device to attract a significant dust buildup in a relatively short period of time.

Sample Restore Jobs and Cleaning Tape Heads of Computer Data Backup Systems

Testing a tape for a sample restore job is also a great time to clean the heads of the backup drive if your backup system requires this kind of maintenance.

Restoring a few hundred megabytes (MB) of data to a scratch directory and running a head-cleaning tape should take no more than 15 to 30 minutes.

When running a test restore job, always restore the data to an alternate server folder path, so as not to disrupt the use of any shared folders.

Building a Computer System Backup and Restore Procedure Checklist In times of crisis, the most crucial issue becomes how quickly you can get the data back onto your system, undamaged. So, as you build your computer data backup system, be sure to document your test procedures into handy checklists.

This documentation also can be great for cross-training and crucial for avoiding panic during an emergency. Be sure you have a hard copy of this documentation next to your system and stored off-site with your backup media.

Watching the Log Files of Your Computer Data Backup System

In addition to running test restore jobs, you must inspect your computer data backup system log files daily. When the backup system is first installed, take time to get familiar with the way log files look when everything is working. This way, if something goes awry, you'll be better prepared to pinpoint the nature of the problem immediately.

As network operating system (NOS) suites and backup software have become more sophisticated, it's now possible to monitor backup system log files remotely and more proactively. In most cases, the backup system log files are just plain text (.txt) files.

Many third-party tools and utilities, as well as those included with Microsoft BackOffice Small Business Server (SBS) and Microsoft BackOffice Server, can automatically e-mail or fax a backup system log file at a preconfigured time.

Automatically and Remotely Monitoring Tape Backup Log Files

Many computer consultants have their small business clients' log files automatically e-mailed to them daily, so the consultants proactively can watch out for potential problems with the computer data backup system.

However, don't think this proactive monitoring is limited to professional consultants. If your company has one or more branch offices you support from a centralized location, you also can use a similar method to monitor backup system health in remote locations.

For greater flexibility, you can set up an e-mail alias so the computer data backup system log file automatically is sent to you, your second-in-command and perhaps an external computer consultant – so you are all kept in the loop. Also, this way, monitoring continues even when you're out of the office or on vacation.

The Bottom Line

If your small business depends greatly on its computer systems, backing up your data is not optional… and it is not something that can be casually brushed to the back burner.

Use the computer data backup tips in the articles to help you become a more IT-aware small business owner. And remember, when it comes to computer data backups, "Test Now or Cry Later". The choice is yours.

Joshua Feinberg is a 15-year veteran computer consultant, an internationally recognized expert on small business computer consulting. He has appeared in dozens of business and IT trade publications including American Express OPEN Platinum Ventures, Entrepreneur, Inc, SCORE, Small Business Computing, and USA Today. To learn more about Joshua's money-savings tips for small business PC support, visit his site at http://www.PCSupportTips.com

Sunday, March 1, 2009

Know What Youre Dealing With Essential Information You Must Know Before Paying For Data Recovery

Writen by Alex Bezborodov

Know what you're dealing with

The world of data recovery is a big mystery for most consumers and even some IT professionals. This is largely because hard drives themselves are complex devices and their technological specifics are not generally well known. Data recovery companies thrive on their customers' lack of information and often get away with charging obscene rates for any recovery, regardless of complexity. I hope this article will be a helpful resource for consumers and professionals alike. I provide some basic information about data recovery by shedding some light on how hard drives work, how they can fail, what are the chances of successful recovery and how much the user can expect to pay. This information will enable the user to make an informed decision when choosing a data recovery company.

A bit about Hard Drives

A computer hard drive stores data on metal oxide platters which spin up to 10000 revolutions per minute. An actuator arm contains the 'head' which reads and writes the data in the form of magnetic charges one millionth of an inch above the surface. Any given drive can have multiple read and write heads and each head can 'crash' independently. A head crash occurs when the read/write head comes in contact with the platters of the disk (more on head crashes below). As manufacturers strive to cram more space on hard drives without increasing their physical size, the data gets written increasingly closer together, making for very difficult recovery should one or more heads crash. The brain of the hard drive is its controller board and this is unique for each individual hard drive. One other detail worth a mention is the service track of a hard drive. This is an area located on the outer part of the disk platter and it contains the drive's firmware zone. The firmware of a hard drive is the information used by the computer to communicate correctly with the drive. These are the main components that make a hard drive work, now let's talk about what can go wrong.

There are many ways in which a hard disk can fail

Hard drives are extremely fragile and can suffer failures in many different ways, leading to a loss of data. The five most common types of drive failures are: logical errors, mechanical failure, electronic failure, firmware corruption, and bad sectors, or any combination these. Least severe of these is usually data loss due to logical errors.

Logical errors are often the simplest and sometimes the most difficult problems to deal with when recovering data. They can range from an invalid entry in a file allocation table, a simple problem that needs little work; to severe issues such as the corruption or loss of the entire file system. Logical errors can be spotted when files become inaccessible, there is a delay in starting up the computer, and programs do not run properly. Logical errors are often seen as simple because there is nothing wrong with the physical drive leading users to try recovering it themselves by using third party software. This is quite risky, however, as running such software on a damaged drive can result in total loss of data. The most effective way to prevent logical errors on your hard drive is to regularly use the Disk Defragmentation tool in your operating system.

Recovering a drive with logical errors can be simple and quick, however if the problem requires manual bit-by-bit reconstruction of the data, it can also be quite complex and time consuming. Normally, logical errors are in the lower end of the price range as they do not require manual disassembly of the drive, however there are cases when logical failures end up in the higher end of the price range. The bottom line with logical errors is the sooner they are caught and the less a user tampers with the drive, the better the chances for a quick and thorough recovery.

Mechanical failures are often much more serious than any other failure and frequently lead to a partial or even total loss of data. The most common type of mechanical failure is a head crash, which is when the read/write head comes in contact with the disk platter. Head crashes can be caused by a variety of reasons, including physical shock, static electricity, power surges, and mechanical read/write failure. Mechanical failures are detected by a constant clicking or grinding noise coming from the drive. If you suspect mechanical failure, you must immediately shut down your computer and call a data recovery company for advice.

Mechanical failures are usually the most severe and most challenging to recover from. All mechanical failures require physical disassembly of the drive. The replacement of a read/write head is one of the most complex and costly procedures that can be performed by a data recovery engineer, especially with larger capacity drives. The chances of recovery depend entirely on how much damage the drive has sustained, however they can be quite good. A crashed head does not mean that all your data is lost! Once again, the sooner you catch a mechanical problem and turn off your drive, the more of your precious data is likely to be rescued.

Electronic failures are most common after a power surge or due to some other electric problem, and the most common type is control board failure. A power surge can knock out the control board, making the drive undetectable in the BIOS. Because each drive is fitted with a unique control board, recovery of this type is relatively complex. However, the good news is that normally once the control board issue is fixed, the data is usually 100% recoverable.

Recovering a drive that has suffered from an electronic failure can be time consuming, mainly because the specific problem takes some time to diagnose. Once diagnosed, though, the recovery is usually not tremendously complex and would probably land in the mid-range in terms of price. Most of the time, we are able to achieve a 100% recovery from drives that have suffered an electronic failure.

Firmware corruption is caused by logical problems or physical damage to the firmware zone on the disk platter. When the firmware becomes corrupt, the computer is often unable to properly communicate with the hard drive, and drive is not recognized in the BIOS. Fortunately, when the drive fails due to firmware corruption, the data is usually fully recoverable once the drive has been repaired.

Recovering a drive that has suffered from Firmware corruption is possible with the use of our proprietary technology. Because the firmware information is isolated on the outer rim of the disk, most of the data can be recovered successfully. The complexity of recovering a drive that has suffered from firmware corruption depends on the amount of damage suffered by the service track on the disk's platter. Expect the cost of this type of recovery to be in the mid- to high-price range.

Bad sectors are a common fate of all hard drives.

Eventually, all drives develop areas that are no longer functional and when this happens, they are isolated by the operating system. Bad sectors are very much like bumps in the road, areas which are avoided by the read/write head and which are no longer accessible to the user. If mission critical data exists on the drive, we recommend to backup as soon as possible, as the formation of bad sectors often indicates the impending demise of the drive. Finally, and most importantly, do NOT under any circumstances run the ScanDisk or Chckdisk utilities when data becomes inaccessible. These utilities are designed to fix only file system errors and not any other types of errors, so if your hard drive has suffered from bad sectors, these utilities only make things worse.

Bad sectors are accessible

We are able to recover drives with bad sectors using our proprietary mirroring technology. The process often involves manual mirroring bit-by-bit, which can be time consuming. The price of this type of recovery will generally be in the mid-range of the pricing schedule.

I hope the above explanations are of some use to all computer users. The basic fact is that data loss happens to everyone. Every hard drive crashes, and often when you least expect it to. Backup is essential for end-users and business users alike, and there are many excellent ways to back up your data. But if you've lost data, attempt to understand the problem before calling a data recovery company. Be informed, save your money, get your data back.

For more comprehensive information on preventing data loss, visit our website tips section.

Alex Bezborodov is the technical writer for Accurate Data Recovery, specializing in data recovery solutions and research. Let ADR bring your data back to life!