|
|
|
10 PROVEN TIPS TO SURVIVE A COMPUTER CRASH
10 PROVEN TIPS TO SURVIVE A COMPUTER CRASH By Eve Abbott, excerpted from her new book, How to Do Space Age Work with a Stone Age Brain TM COMPUTER CRASH Do these words strike fear into you? If not, maybe they should! A computer crash is at best...
Backing Up Your Stuff Part 2: A Solution
So what do you do when you have so much stuff on your computer that it becomes difficult, if not impossible, to back up the whole thing on a regular basis? You know that you must perform backups (the world is full of dangers to your computer and...
Data backups are the biggest security threats! Surprised?
Gary, a network security consultant with Fortune 500 companies, and
an editor of http://www.data-recovery-reviews.com argues that data backups actually hinder corporate IS security and makes a case for offsite data backups.
Gary J, security...
Great Site Ranking In Google The Secret's Out
How many years did you register your domain name for? If it was only one then Google could hold that against you.
Why?
Because the majority of Spam websites only register a domain name for one year. A domain name registered for a longer...
Health and Medical Advice on the Internet: Use it Wisely to Overcome Illness and Find More Happiness in Your Life
I’ve got a bit of a problem with depression and anxiety. I’ve been tackling these problems for several years without the use of modern medicine. Tai Chi, meditation, martial arts (exercise), and positive interaction with other people...
|
|
| |
|
|
|
|
|
|
Can RAID Systems Fail?
Technology, how we love it until something goes wrong and we end up yelling at our computer screens. If you’ve ever lost data, you know how much time, money, and headaches it can cost you to retrieve it, especially if you are a company. Data recovery doesn’t have to be worrisome.
The acronym RAID, first used in 1988, stands for Redundant Array of Inexpensive (or Independent) Disks. RAID is an assembly of disk drives, also known as ‘disk array’, which operates as one storage unit. In general, the drives could be any storage system with random data access such as magnetic hard drives, optical storage, magnetic tapes, etc. RAID has several functions which include providing a way of accessing multiple disks grouped together to appear as a single device, spreading data access out over these disks which reduces the risk of losing data if one drive should fail, and improving access time.
Can RAID fail?
RAID undoubtedly offers more data protection than non-RAID disk systems. However, the management of the disks and the data distribution across them can be complex. Complex redundant systems can suffer failure, most often not a fault of the technology used or the design of the array, but most likely because of its failure to correctly apply these systems which leads to a single point of failure causing disastrous data loss.
No matter how well designed or implemented the RAID system is, there is still a factor that can cause RAID data array problems, the human factor. The more complex the system, the higher the likelihood for mistakes to occur. Note the following:
- Multiple drives can fail in an array.
- Arrays are normally boxed in a single case, so physical damage can affect multiple drives and the control electronics.
- Many people don't back up RAID systems because they're 'fault tolerant' - however they're not 'fault
proof'.
Think of a RAID system as an insurance policy for your data protecting you against drive failure. Drive failure entails employee downtime, lost sales, customer costs, lost opportunities, data restoration and re-entry costs, and intangible costs due in part to work day disruptions not to mention the cost of RAID data recovery.
There are several ways to store data using the different RAID levels:
- RAID 0, also known as data striping, distributes data across drives which results in higher data throughout. However, since it has no data redundancy, it does not protect against data loss.
- RAID 1, also known as drive mirroring, works by simultaneously copying data to a second drive so no data is lost if there is drive failure.
- RAID 2 uses Hamming error correction codes and is proposed for use with drives which don’t have built-in error detection.
- RAID 3 stripes data at a byte level across several drives storing parity (a form of data protection used to recreate the data of a failed drive in a disk array) on a single drive.
- RAID 4 stripes data at a block level across several drives, with parity being stored on one drive. The parity information allows for recovery from the failure of any single drive.
- RAID 5 is similar to RAID 4 except for the fact that it distributes parity among the drives.
With the use of RAID systems, there is no reason to be intimidated by computer systems.
About the Author
Alexandria Haber writes both fiction and non-fiction for a variety of people and places. As a result, she has had the benefit of gaining a little bit of knowledge about a lot of different subjects. While researching this article on RAID recovery she gained a new respect for computer technology.
For more information on RAID recovery you can visit: http://www.raidrecoveryguide.com.
|
|
|
|
|
| Data Recovery Software and Undelete from R-TT |
| Disk management software including utilities for data recovery, drive imaging, disk wiping and access control. |
| www.r-tt.com |
|
| Data Recovery | Email Data Recovery by Ontrack |
| Data recovery services, data recovery software, file repair software, and diagnostic software from Ontrack. Software for email recovery, file recovery and ... |
| www.ontrack.com |
|
| Data Recovery by DriveSavers | Hard Drive Data Recovery |
| Worldwide data recovery service for all operating systems and storage media. Authorized by all drive manufacturers. |
| www.drivesavers.com |
|
| Hard Drive Data Recovery Software Tools, Disk Recovery Utilities ... |
| Offers data recovery software,data recovery services for hard drive recovery and data safety software services for your computer. Buy award winning data ... |
| www.stellarinfo.com |
|
| Data Recovery by FADV – Hard Drive, RAID, Tape, Database and more ... |
| Offers data recovery services for all hard drive models. RAID, MS SQL, Exchange, Tapes, Camera and USB media, CD and DVD. Service available 24/7. |
| www.datarecovery.net |
|
| Data Recovery Software - File System Utilities |
| Data recovery software for all Windows file systems. Recover deleted files, corrupted hard drives, and partitions. |
| www.runtime.org |
|
| Professional Data Recovery Software from Bitmart. File Recovery ... |
| Data Recovery Software Restorer2000. Undelete & File Recovery utility for FAT and NTFS file systems. Data Recovery from damaged disks and partitions. |
| www.bitmart.net |
|
| Data Recovery Services - ActionFront - Critical Server Data Recovery |
| ISO certified data recovery services with labs in Atlanta, Santa Clara, Dallas, Chicago, Toronto (also Buffalo and Tokyo Japan) |
| www.actionfront.com |
|
| Hard Drive Data Recovery Software: Recover Deleted Files- Recover ... |
| Data recovery software for recovering files that have been deleted or lost due to the hard drive format, virus infection, unexpected system shutdown or ... |
| www.recovermyfiles.com |
|
| Data Recovery Group - Hard Drive Data Recovery Services |
| Data Recovery is Our Only Business! Data Recovery Group's a complete data recovery service that specializes in recovering data from hard disk drives. |
| www.datarecoverygroup.com |
|
| Data Recovery by CBL: Hard Drive Recovery Services |
| Worldwide Data Recovery Services at CBL. Specializing in data recovery, hard drive recovery, hard disk drive recovery and RAID data recovery. |
| www.cbltech.com |
|
| Data Recovery Software, File Repair Utilities, Hard Disk Recovery ... |
| Hard drive data recovery software to perform data recovery & recover deleted files from Novell, Linux, Unix, Mac, Windows & data recovery services for hard ... |
| www.nucleustechnologies.com |
|
| AT&DR: Data Recovery and Liabillity |
| Associated Technologies offers complete data recovery solutions with services for any type of data storage device, including the following: hard drives, ... |
| www.datarecovery.com |
|
| Ontrack UK - Data recovery services & recovery software - hard ... |
| Ontrack offers data recovery services & software for: hard drive recovery, file recovery, server recovery, email recovery, tape recovery, RAID recovery. |
| www.ontrack.co.uk |
|
| Beginners Guides: Hard Drive Data Recovery - PCSTATS.com |
| Beginners Guides: Hard Drive Data Recovery - PCSTATS.com. |
| www.pcstats.com |
|
| File Recovery and Data Recovery Software. Hard Drive recovery utility |
| Data recovery software for FAT, NTFS, Ext2FS file systems. File recovery after FDISK, MBR destruction, FAT damaged, virus infection. Dynamic disk support. |
| www.data-recovery-software.net |
|
| Data recovery - Wikipedia, the free encyclopedia |
| Data recovery is the process of salvaging data from damaged, failed, ... Although there is some confusion as to the term, data recovery can also be the ... |
| en.wikipedia.org |
|
| Active@ UNDELETE Data Recovery. Recover Deleted Files. Windows XP ... |
| Active@ UNDELETE - Data Recovery Software for all Windows File Systems. Recover deleted files from lost, damaged, formatted or reformatted partitions. |
| www.active-undelete.com |
|
| New Zealand Data Recovery & Computer Forensics Experts |
| New Zealand data recovery specialists & computer forensics investigation experts. Recovering lost data for businesses or legal evidence is all we do. |
| www.datarecovery.co.nz |
|
| Canada Data Recovery Services: Hard Disk Drive Recovery, Raid Data ... |
| Provides data recovery solutions for companies experiencing data loss from failed hard drives, raid arrays, and server systems. |
| www.datarecovery.ca |
|
|