Archive for May, 2009

When Should You Change Your Hard Drive?

Saturday, May 30th, 2009

It is very easy to forget how long we can all spend working on an important university or business document or PowerPoint presentation, if you were to add it all up it could amount to days and on occasions weeks but what do you do when you suddenly find the file has simply vanished from your computer.

You check your deleted files with no luck and do a full search on your computer but the file or folder has simply vanished. In all probability the file is still on your hard disk but for some reason cannot be found which may be the first signs of a degraded drive.

It would be nice to think that your hard drive will remain reliable for ever until the day you renew your computer but like most things mechanical drive failures do occur it would seem far more often than you would expect especially given the manufacturers mean time between failure specifications that come with a new hard drive or can be found on the manufacturers website.

But oh if life was so simple!

So the big question is when is the best time to renew my hard drive so it does not suffer from any failures?

This is one of those wide open questions that will have experts arguing until the cows come home because there are a wide variety of factors that come into play.

The actual usage of the hard disk will play a large part in your decision for example a hard drive used in a low use machine may last 5 years or longer as the drive is not being used very much at all or only stores a relatively small amount of data.

The same expectation could be applied to the many mid range computer users which includes office Pc’s laptops and home desktop systems, where users have a small number of programs in use and small amounts of data or if data is stored on a central server.

But if your system is used for extreme gaming, computer aided design, Digital content creation or virtual prototyping then the hard disk will be working massively harder than in the previous two scenario’s so it would only be expected that true life expectancy would be a lot shorter.

High end computer users using high end applications will often have a much shorter expected life of their system, and desktop refresh tends to be around 3 years or so to avoid disk failure and to keep them at the cutting edge of computing productivity which is important for a business.

If a hard working drive’s life were to be extended then it would be reasonable to see an increasing ramp up in disk failures over time or drive degradation.

During challenging economic times, business computer refresh programs are often put of to protect working capital which on the face of it can be seen as a sound business decision but there can be a large bite to this policy if an essential drive or server fails with a resultant loss of business critical data.

Any business should in this day and age have effective remote data backup and disaster recovery policies in place especially if postponing a business system upgrade.

Another prime factor affecting the longevity of the drive is of course disk maintenance. If your hard drive is allowed to become fragmented then it will have to work an awful lot harder to pick up information and in extreme cases of hard disk fragmentation drives can get very stressed to the point of failure.

Your lost file should be easily recoverable but you do need to bear in mind that any further information written to your hard drive can over write the file you are trying to save. This often happens with data recovery software so if diy recovery is your choice be warned.

Most data recovery experts will be able to restore your deleted or lost files even if your drive has degraded and even if your drive has bad sectors that are unreadable hard drive recovery and data recovery are often very successful.

Factors To Consider When Looking At Data Loss Risk Reduction

Thursday, May 7th, 2009

Data loss emergencies can hit any business without any prior indication of a potential problem. Sometimes data loss issues can be nothing more than a business hiccup and not to much data is lost, or the lost data can quickly be reworked to get the situation back to normal. Conversely though large data loss scenarios can have an devastating effect on a business and the more employees they have or the more reliant they are on their IT infrastructure, then the bigger the problem.

If a main raid server has gone down and this is used to house the company’s customer relationship management software then quite literally business can stop , especially if the CRM system is principally used for sales or the company employs a large sales force.

The effect will of course impact larger companies more than smaller organisations but the effect of data loss can still be quite devastating none the less.

If the business has had the forethought to put a disaster recovery plan in place then this can be quickly be implemented to get your business into action but if you do not have one, or have completed you business continuity plan but have simply not implemented yet then the effect of the data loss can be quite far reaching.

So what is the cost of a data loss disaster? This is a question often asked by smaller business as they need to establish a sensible return on investment in order to justify the cost of setting up a plan. Unfortunately the return of investment is a negative one in most cases, that is unless there is a data emergency, then there will be no return on investment. There will on the other side of the coin though be a large risk reduction. A good measure that could be used for a sales organisation though could be loss of potential sales.

This can be a useful yard stick to justify the return of investment in a business continuity plan so for example if a business was clearing only 2k in sales per hour then a days downtime could result in a gross loss of 16k in sales alone.

Obviously this would scale up or down depending on the business affected. Other costs that can be factored in could also include the actual cost of recovery, legislative fines due to failure to hold critical business data and of course future sales if essential client records have been lost.

As well as the tangible costs intangible costs also need to be considered which could include the loss of potential clients or business credibility, the management overhead needed to get the business back on line again and the cost of manual data entry from paper records (if they are held) to populate the database once it has been restored or the server has been re-built.

Another crucial factor that needs to be taken into account during any data emergency is the sheer value of your company data, it is often extremely tempting to follow the path of least resistance and least cost by asking you IT department to try and rectify the situation, unfortunately history has shown that the chances of corrupting data even further are very high unless your IT department employs a data or raid recovery specialist.

Also if you are employing the services of a raid data recovery company you need to check their potential methodology and ensure they will not work on the actual donor disks as it is crucial to keep the main data source intact at all times.

Specialist disaster recovery and raid recovery experts will use state of the art equipment is to recover lost data from raid servers, laptops and other storage media or network attached storage devices, and to make sure you data is safe just in case a data loss strikes again they should also supply remote server backup solutions for small and corporate businesses to ensure business continuity.

For raid data recovery help visit the Manchester data recovery website.