22 Feb 2008 03:51:33 | Greg Duffield
Your worst nightmare just became a horrifying reality. You keep
hearing that little voice in your head mockingly shout “you
should have backed that stuff up” The voice keeps echoing
throughout your head as you perform a quick inventory all of the
important information that you just lost…..your client database,
a years worth of e-mail, your entire inventory database, even
your family photos. Even worse, you’ve got a deposition in
two-weeks and key information needed to help win the case were
also lost. You quickly call a service technician and have them
come over to check the computer out, only to hear the worst news
of all….your data has been lost. When a hard drive crashes, it’s
too late to worry about what you “should have done.”
Today data recovery is a multi-million dollar industry. The
number of data recovery firms out there seems to exceed the
number of fast food restaurants for the entire planet. These
companies specialize in helping their clients retrieve data on
anything from hard drives to flash-roms. In the following
report, we will discuss what data recovery really is; the
different types, the costs, and what you can realistically
expect when it comes to getting your data recovered.
What To Do In The Event Of Data Loss?
Around 44% of all data loss is caused by hardware failure. It’s
important to make sure that you immediately shut your system
down if you suspect that hard drive has crashed. Don’t even try
to go through the shutdown procedure, just pull the plug from
the wall. Do not try to run off the shelf data recovery software
or drive utilities. Many times these applications will assume
the drive is functioning properly and will increase the risk of
permanent data loss.
Types Of Hard Drive Failure When we discuss data recovery in
this report, we will primarily focus on issues surrounding hard
drive failures; since these types of failures are most common.
There are really two primary forms of failure in a hard drive,
logical and physical. Logical failures are usually a result of
file-system corruption. This can occur due to a virus,
accidental deletion of key files or registry components, and in
some cases even electro-static discharge. In most cases where a
logical failure has occurred, the drive is still recognized by
the system BIOS, but it will not boot. In most cases, your data
should still be intact on the drive, even though it may appear
to be inaccessible.
If the system BIOS does not detect the presence of the hard
drive, then chances are a physical failure has occurred.
Physical failures can result from a wide variety of causes.
There are really two sub-categories for physical hard drive
failures; mechanical and electronic. Mechanical failures usually
result from a failure of the spindle motor. Spindle motor
failure can result from excessive heat due to a bearing failure.
The increased heat resulting from the bearing failure will
expand the drive shaft and therefore seize the spindle motor.
Suddenly, your drive will become inoperative. Occasionally, you
will get a warning that something bad is about to happen. You
may hear a loud whining, a grinding noise, even high-pitched
screeches. If anything like this starts to occur, BACK UP YOUR
DATA IMMEDIATELY.
Another physical issue that sometimes rears its ugly head is an
electronic failure. If you look at a hard drive you will notice
a circuit board on the bottom. This board is basically the
brains of the drive, and it is where the computer interfaces to
the hard drive. An electrical failure can occur unexpectedly at
any time. Even brand new hard drives are not totally immune to
having electrical failures. Sometimes it’s just a faulty
component, sometimes it’s improper installation (i.e.
electro-static discharge, grounding out the board, damaging
circuitry during installation). It’s important to also keep your
system clean and well ventilated, since excessive heat can
damage the electrical components on the drive. If you have a
system that is in a somewhat contained area, you may look at
adding an additional 80mm fan to cool the internal components of
the system, especially the hard drive. No other component of a
computer works as much as the hard drive, and therefore it is
vitally important not to overlook it when cooling issues arise.
How Is My Data Recovered?
One of the most often asked questions that customers ask is,
“how do you get my data back?” Well, it’s really not black magic
or rocket science. It’s just a matter of having the right tools
and the knowledge necessary to know what to do, much like a
surgeon performing heart by-pass surgery. Many prominent data
recovery facilities have a large array of hardware, software and
tools for recovering data.
Generally speaking when a hard drive is received by a data
recovery firm, the first thing they do is evaluate it, and
determine what recovery solution will be necessary. If the drive
failure is a logical issue as mentioned earlier, then a scan of
the drive will be performed to try and repair the file system
corruption. Sometimes a partition can be repaired and the drive
restored to the status that it was before the failure. If this
is not possible, then a very low-level scan will be performed
that essentially searches every sector of the hard drive for
files. Once the files are located, they can then be copied to
the media of choice, i.e. a CD-ROM, DVD-ROM or another hard
drive. Logical recoveries can take up an enormous amount of
time, especially if the drive is on the verge of physical
failure. It’s not uncommon to allow for one day of scanning and
a day for recovering the found files.
If the drive has suffered a physical failure, then the recovery
procedure is quite a bit more challenging. As mentioned above,
there are really two sub-categories of physical failure;
mechanical and electronic. An important element in recovering
data from a physical failure is having the necessary parts to
get the drive functioning again. Unfortunately with hard drives
if you have a 20GB Maxtor Hard Drive for example, then you will
need another identical 20GB Maxtor Hard Drive for salvaging
parts. In cases where the electronic circuit board has failed on
the hard drive, then you have to have the exact same circuit
board on hand in order to retrieve the necessary circuit
components for replacement. Many times you cannot even exchange
circuit board for circuit board. These repairs generally require
soldering skills and a thorough knowledge of electronics to be
successfully completed. You will most likely hear “Class100
Clean Room” thrown around a lot when talking to data recovery
professionals. Simply stated, a Class100 Clean Room maintains
exceptional air purity, and contains less than 100 airborne
particles larger than 0.5 microns in each cubic foot of air.
This is vital in protecting sensitive internal components of
hard drives. Anytime a hard drive is having an invasive
procedure performed on it, a Class100 clean room or better is
needed.
The time frame for recovery is generally 5-10 business days for
physical issues and 2-4 days for logical issues. Sometimes if
components are not readily available, then it may take weeks to
complete the recovery. Some firms offer expedite service and you
definitely pay for this added attention.
What About Data Recovery Software
This is one area where you really do get what you pay for. Try
to stay away from software in the $20-$60 range, since these
utilities are generally very limited in what they can do. Also
make sure that you NEVER and just to emphasize, NEVER EVER get
data recovery software that writes anything at all to the
damaged disk. You run the risk of overwriting data that may
otherwise have been recoverable, but will be lost forever. If
you are fairly computer savvy, then there are a few good data
recovery software solutions available.
What To Look For When Shopping For Data Recovery
There’s an old saying, “you get what you pay for.” In most cases
this is true. However, just because a company with a fancy
website quotes you $3,500 for data recovery, does not mean that
they are any better than a company that quotes you $1,500. Also,
try to stay away from companies that want to charge $50-$300 for
evaluating your drive. There has been a movement in the data
recovery industry over the last couple of years to offer a
number of free services. Most reputable data recovery companies
will evaluate standard IDE drives free of charge; so don’t let
the word “free” this or “free” that stop you. The data recovery
market is quickly becoming saturated, and a company does not
necessarily cheapen itself or lack expertise by offering free
evaluations.
You will find as you shop around for data recovery that prices
vary greatly. You will get quotes that range from $300 to $5,000
for standard hard drive recoveries. It’s not uncommon to
literally get quotes that have at least a $1,500 high/low
spread. We shopped one prominent data recovery company where we
gave them specific indicators of a physical hard drive failure.
We were eventually quoted a price range of $600 to $2,900 for
the recovery. Many times this is a bait and switch type tactic.
They get you to send in the drive with the low-end $600 price,
then they let you know it’s going to cost $2,100 for the
recovery. You end up being well under the $2,900 high-end price,
but well over what other reputable companies would charge. Since
most customers won’t go through the pain of having the drive
sent back, only to have to send it out to another company, these
bait and switch companies end up making huge profits off of
unsuspecting customers.
Try to find a company that will give you an up front cost for
either a logical or physical recovery. Most companies will be
able to tell you within a couple hundred dollars the cost of a
recovery. However, don’t misunderstand a company that gives you
a price for two different procedures. For example, some
companies will give you a price if the failure is logical and a
price if the problem ends up being physical. We called one firm
and were told that if the drive had a logical failure the price
would be $400 and if it ended up being a physical issue the
price would be $1,600. This is not a high/low spread as
mentioned in the earlier example, this is simply quoting a price
for two different types of recoveries.
On average you can expect to pay anywhere from $400 to $600 for
logical recoveries, and $1,200 to $2,000 for physical recoveries
on standard IDE hard drives. If you have RAID drives, SCSI, etc.
depending on the configuration prices can be as high as $15,000.
Remember, backup backup backup backup backup!!
Can My Data Be Recovered?
In most cases the answer to this question is yes. On average,
the success rate for data recovery professionals is about
75-85%. However, there are times when the data is just lost,
either due to extensive damage to the platter or unavailability
of replacement parts.
How Do I Get Started?
If you have a hard drive that has crashed, the most important
thing you can do is contact a data recovery professional
immediately. Make sure you aren’t being charged an evaluation
fee if you have a standard IDE hard drive. Most companies only
charge evaluation fees for complex RAID and network server
drives.
You will find links to various data recovery firms on this page.
We do not support or endorse any of them, but they are listed
for your convenience. It is important to do your homework, call
and talk with the companies. When you find one that you feel
comfortable with, give them a chance. Your hardest job, may be
finding data recovery firms that actually have someone available
to answer the phones. Ask questions and be sure to have the
following information available:
Size of the drive Operating system (i.e. Windows 98, Windows XP,
etc.) Situation of failure (what happened just before the drive
stopped working) Is the drive recognized by the computer's BIOS
or not Good luck in getting your data recovered, and make sure
you always backup your important information on a daily basis.
For more information visit: http://www.acsdata.com
About Author :
Greg Duffield is the founder of ACS Data Recovery. ACS
specializes in providing hard drive data recovery services for
clients around the world.