Hardware doesn’t last forever. A malfunction or complete failure occurs no matter how diligent one is at looking after one’s computer or server.
Physical Hard Drive Failure:
– the power delivery system
Should this fail during a booting or shutdown sequence or while your system is in use, can lead to file corruption. This is a good example of a physical and a logical failure.
– the circuit board
The system cannot read any data thus your system will not boot.
– the motor/bearings
No motor working the no spinning platters thus your system cannot boot. Bad bearings. Yikes!!! If you hear odd noises from the hard drive shut your system down and get your datatransferred and the hard drive replaced.
– the drive heads
They move above the platters converting magnetic field into electric current which is the read process. The reverse is for write. If a head touches a platter it can mean catastrophicfailure.
Logical Hard Drive Failure:
– a simple invalid entry in a file allocation table
While the drive itself is good the files do not load up right or the meta-data describing where the files are stored is not consistent.
– loss of the file system on a severely fragmented drive
So think of the hard drive as a book with a missing page or pages. For a hard drive this could mean it is missing crucial data required to boot successfully.
– data on the drive is corrupt
Power outages or other power related problems can corrupt the data. Improper shutdowns, hardware problems such as bad memory, bad sectors and even hard drive failures contribute.
Until next time on Data Buzz.
Yup. I said it. The dreaded hard drive crash. Been there done that.
Everyone backs up their data. False!!!
Let’s face it. There is never enough time in a day and unless you have hired someone to manage the data backup of your company or personal systems it’s not going to happen on a regular basis.
As time goes by it becomes easier and easier to put it off one more day, week, month…..
Who knows if and when your hard drive will crash? Sometimes there are signs and sometimes not. I wish this on no one, but we’re so busy with life that something has to be pushed to the back burner.
For some the loss of data is no big deal, but for others it can mean a loss of family photos, personal records, business records and so on.
Should your system crash and no longer boot up there are options.
– Format and install the operating system. There is the chance of losing some files.
– Replace the hard drive and install the operating system
– Call a friend
For those who must get their data back I recommend data recovery services. We use specialized hardware designed specifically for data recovery. There are software packages. Some work, some don’t, but this is another blog buzz for later.
I know the costs for data recovery can seem expensive, but you have to look at the value of the services. Retrieving priceless photos, personal or business records will make the costs seem negligible. Can you imagine losing one day of business records? So what happens come tax time? You see where I’m going. Look at the bigger picture.
Untill next time from Data Buzz
Logical data recovery is the repairing of “logical damage” on the storage media. This simply means the error is not a problem in the hardware and requires software-level solutions.
This explanation sounds so simple, but exercise caution if you are not computer literate or comfortable with attempting this on your own. Remember the old cliche “Go with your gut instincts?”
Logical damage can be caused by: