OPERATING SYSTEM RELOAD
REBUILD RAID DRIVES
RUNNING THE CHECKDISK UTILITY
RECONFIGURE THE RAID ARRAY
USING DATA RECOVERY SOFTWARE
REINITIALIZE RAID ARRAY
REFORMAT DRIVES IN THE ARRAY

RAID data recovery is an extremely complex type of recovery
that requires much experience and expertise with how RAID
arrays work.  If you have a RAID failure, it is best if you do not
try to recover the RAID yourself using "quick fix" techniques or
"off-the-shelf" data recovery software.  Contact a data recovery company as quickly as possible.  These companies have the capability to recover RAID arrays with advanced recovery tools
and techniques required to ensure a successful recovery.

The success of RAID recovery depends on the cause of RAID
failure, the configuration of the RAID array, and whether or
not the user has made attempts to recover the RAID.  Such
attempts can cause permanent data loss!

By using caution and the tips above, you can be on the road to
a successful recovery of your RAID array.

The reality: RAID fails

In reality and to the surprise of most, RAID could fail and often fail. See some typical scenario below :

When one hard disk fails, very often, there is no hot standby. As a result, the raid array is running on degraded mode. While waiting for the replacement drive which may take a day or two, the likelihood of next drive failure disabling the raid volume is very high. It is reasonable to assume that all the drives in the array are from the same batch and subject to equal amount of working stress. So if one disk fails, the other is also near imminent failure and it often does.

Most raid server has a single controller. Its failure will result in catastrophic single point of failure.

Frequently, due to power surge, the controller or a number of disk elements could fail resulting in total loss of data. It is also found that a power surge may corrupt the RAID configuration setting of NVRAM in the controller card.

It is also commonly found that while replacing a faulty drive in an attempt to rebuild the raid volume to healthy state, wrong procedures are performed resulting in wrong or partial rebuild, or complete system breakdown upon completion of rebuild.

Not to forget that a RAID configuration with fault tolerance at best only intends to protect the physical failure, but not logical corruption such as system corruption, virus infection, or inadvertent deletion.

Types Of RAID failures

To summarize, RAID server often fails as a result of the following situations and frequently, a combination of them :

• Malfunctioned Controller
• Raid rebuild error or volume reconstruction problem
• Missing RAID partition
• Multiple disk failure in off-line state resulting in loss of RAID volume
• Wrong replacement of good disk element belonging to a working raid volume
• Power Surge
• Data Deletion or reformat
• Virus Attack
• Loss of RAID configuration settings or system registry
• Inadvertent reconfiguration of RAID volume
• Loss of RAID disk access after system or application upgrade

Please Note:   Depending on how the WD ShareSpace RAID is setup, that RAID array may not be recoverable from a drive failure.

Qty of 2 – 1TB internal hard drives:

• RAID-0 – 2TB – (Not recoverable)
• RAID-1 – 1TB – (Recoverable)
• RAID-5 – (Not Supported)

Qty of 3 – 1TB internal hard drives:

• Spanning – 3TB – (Non recoverable)
• RAID-0 – 3TB – (Non recoverable)
• RAID-1 – (Not Supported)
• RAID-5 – 2TB – (Recoverable)

Qty of 4 – 1TB internal hard drives:

• Spanning – 4TB – (Non recoverable)
• RAID-0 – 4TB – (Non recoverable)
• RAID-1 (Double Mirror) – (Recoverable)
• RAID-5 – 3TB – (Recoverable)

For a recoverable RAID mode:
To recover the ShareSpace from Drive failure, or from a degraded RAID array, you must replace the failed drive with a Western Digital unformatted drive of the same model and size. Once the drive is replaced, the ShareSpace will re-sync the drive back into the RAID array and automatically start the RAID re-build. No further user intervention is needed, other than replacing the failed drive in the unit.

Overview: The NAS 4100 comes with 4 separate hard drives. In the event of a hard drive failure you will be notified via an Email alert and/or Web UI. RAID regeneration can take up to 30 minutes depending on which drive has failed.
To check status of your NAS 4100 drives use Logical Disk Manager. To access the Disk Management utility:

2. Open “MaxNeighborhood” and double-click on the NAS 4100 that you want to create the folder on.
3. Login to NAS 4100 with the appropriate Administrator (or Administrator equivalent) username and password.
4. Click on "Administer this server appliance". Upon doing this, the NAS 4100 Home Page will appear in the Browser.

   

5. From the Home Page, click on the “Disks and Volumes” Link. At this point, the Disks and Volumes page will be displayed in the Browser.

   

   NOTE: You may click on the Graphical Link OR the Java Text Link…either will suffice.

6. Click on the “Disks and Volumes” link.

   

   NOTE: You may click on the Graphical Link OR the Java Text Link…either will suffice.

7. Click the “Yes” button in the VBScript: Disk Configuration Window.

   

8. The Windows 2000 Management Snap-In will be displayed in your browser.

   

   The NAS 4100 hard drives are configured as; Disk 0, Disk 1, Disk 2 and Disk 3. Each one of these hard drives, if lost, exhibits slightly different behavior.

If a drive has failed, contact MNSG Technical Support.

Please note, Security Erase process only supports OneTouch III Turbo drive when the following two conditions are met:
1. Drive connected to USB interface
2. Drive is in Raid 0 mode. Running Security Erase in Raid 1 mode could cause the drive to be corrupted at the end of the erase process.
The software will reject the request and prompt user with a message when security erase process was attempted with 1394 interface cable.

To create a RAID 0 array please follow the steps below:

1. With the computer powered off, follow the instructions for installing the RAID controller correctly and connect both Serial ATA hard drives to the controller.
2. Boot your computer with the controller and drives already installed.
3. Watch your boot screens for a prompt that will ask you to press the Control and F keys at the same time to enter the Fastbuild utility and press those keys to enter.
4. Press the 1 key to enter Auto Setup.
5. Verify that the top of the screen says Optimize Array for: Performance.
6. If the top of the screen says Security instead of performance, highlight the word Security and press the right arrow button to change the word to Performance.
7. You should see that two hard drives are being used in the array and you will also see the total size of the array in MB.
8. Press the Control and Y keys at the same time to save the array configuration.
9. Press the Y key to create and quick initialize the array.
10. You will be warned that all data on the drives will be erased, press the Y key to proceed.
11. The array is now created, press any key to reboot.

To use the array for extra data storage only:

• Install the latest service pack for your operating system to enable large drive support and use Disk Management to partition and format the array.

To use the array as your bootable system drive:

• Set your BIOS to boot to CD first and boot from your Windows 2000/XP CD to load your operating system onto the array.
• Windows will treat the array as one large drive and will install on the array just as it would on a single drive.
• When you are prompted by Windows setup to press the F6 key to install SCSI or RAID drivers, you will need to press F6 and insert the driver disk that came with your RAID controller card.
• Once the drivers for the card are installed you will be able to finish the installation of Windows 2000/XP onto the array. After the installation of Windows, please install the latest service pack for Windows to enable large drive support and avoid data corruption.

Note: Your system BIOS may require you to change the order of your boot sequence before you can boot your computer from a controller. For more information about adjusting options in your system BIOS, please contact the manufacturer of your computer or motherboard.

Relax. You should have 100% redundancy. SalvageData has a RAID recovery tool that has had good reports.

More details would be welcome. What does the RAID BIOS say ? Does RAID BIOS detect the array and its members? Have you tried to rebuild the array in RAID BIOS?

RAID – Wikipedia, the free encyclopedia

Standard RAID levels – Wikipedia, the free encyclopedia
[edit] RAID 0 performance. While the block size can technically be as small as a byte, it is almost always a multiple of the hard disk sector size of 512 …
en.wikipedia.org/wiki/Standard_RAID_levels

RAID Hard Disk Drive Requirements
RAID Hard Disk Drive Requirements. The "I" in "RAID" stands for Inexpensive (even though it sometimes rendered as Independent). This seems somewhat puzzling …
www.pcguide.com/ref/hdd/perf/raid/conf/drive-c.html

What is RAID? – a definition from Whatis.com – see also: redundant …
9 Sep 2008 … A RAID appears to the operating system to be a single logical hard disk. RAID employs the technique of disk striping, which involves …
searchstorage.techtarget.com/sDefinition/0,,sid5_gci214332,00.html

Hard Drive Recovery Group – Disk Repair RAID Data Recovery Service
Offers nationwide RAID, hard disk repair, data recovery, MS Exchange server and hard drive recovery services.
www.harddriverecovery.org/

Beginners Guides: Installing RAID on a Desktop PC – PCSTATS.com
How to set up a RAID array, what performance you can expect from it, … It’s an unfortunate fact that hard disk drives are rather slow at storing and …
www.pcstats.com/articleview.cfm?articleID=830

24/7 Data Recovery by SalvageData – Hard Drive and RAID Recovery
Discuss and get help about data recovery from experts who monitor this forum. Desktop & Laptop hard Drive Recovery > · Server RAID Array Multi Disk Drives > …
www.salvagedata.com/

24/7 Critical Response RAID Data Recovery and Hard Disk Data …
24/7 Critical Response Server, RAID recovery and hard disk data recovery services, knowledgebase and information.
www.datarecovery.com/

RAID Hard Disk Replacement – Web and dedicated hosting tutorials …
A general guide on the steps to take when replacing a fail hard disk drive in a Raid array.
www.anchor.com.au/hosting/support/RAID_Hard_Disk_Replacement

Data Recovery Software. File Recovery Programs. Get Back Data …
RAID Recovery Software » RAID 0 Data Recovery » RAID 5 Data Recovery … Quick Recovery is a leading data recovery software for Hard Disk Drive, …
www.recoveryourdata.com/

Standard RAID levels – Wikipedia, the free encyclopedia
A minimum of three disks is required for a complete RAID 5 configuration. … As the number of disks in a RAID 5 group increases, the Mean Time Between …
en.wikipedia.org/wiki/Standard_RAID_levels
More results from en.wikipedia.org »

RAID Level 5
Description: One of the most popular RAID levels, RAID 5 stripes both data and parity information across three or more drives. It is similar to RAID 4 …
www.pcguide.com/ref/hdd/perf/raid/levels/singleLevel5-c.html

AC&NC | RAID.edu – RAID Levels – RAID Level 5 – RAID 5
Complete description and an easy-to-understand diagram of RAID level 5. See animated sequence of RAID Level 5 in action. Advantages and disadvantages of …
www.acnc.com/04_01_05.html

Why RAID 5 stops working in 2009 | Storage Bits | ZDNet.com
With 12 TB of capacity in the remaining RAID 5 stripe and an URE rate of 10^14, … RAID 5 protection is a little dodgy today due to this effect and RAID 6 …
blogs.zdnet.com/storage/?p=162

What is RAID? – A Word Definition From the Webopedia Computer …
4 Feb 2008 … Level 5 is one of the most popular implementations of RAID. Level 6 — Independent Data Disks with Double Parity: Provides block-level …
www.webopedia.com/TERM/R/RAID.html

What is RAID? – a definition from Whatis.com – see also: redundant …
9 Sep 2008 … RAID-5 stores parity information but not redundant data (but parity … RAID-5 requires at least three and usually five disks for the array. …
searchstorage.techtarget.com/sDefinition/0,,sid5_gci214332,00.html

Authority in SATA, Serial ATA Raid 5 Controllers
3ware 9650SE SATA II hardware RAID controllers deliver industry-leading RAID 6 and RAID 5 performance, robust fault tolerance, and multi-terabyte capacities …
www.3ware.com/products/serial_ata2-9650.asp

RAID 10 vs. RAID 5 Performance
One of my clients is in the process of standardizing all their servers on RAID 10. We discovered one of their smaller servers had been delivered with RAID 5 …
weblogs.sqlteam.com/billg/archive/2007/06/18/RAID-10-vs.-RAID-5-Performance.aspx

RAID-Z : Jeff Bonwick’s Blog
RAID-Z is a data/parity scheme like RAID-5, but it uses dynamic stripe width. Every block is its own RAID-Z stripe, regardless of blocksize. …
blogs.sun.com/bonwick/entry/raid_z

RAID – Wikipedia, the free encyclopedia

Standard RAID levels – Wikipedia, the free encyclopedia
The standard RAID levels are a basic set of RAID configurations and employ striping, mirroring, or parity. The standard RAID levels can be nested for other …
en.wikipedia.org/wiki/Standard_RAID_levels
More results from en.wikipedia.org »

Raid® Brand Insecticides
Raid ® provides bug killer products for roaches (cockroaches), ants, spiders, scorpions, flies, crickets, etc. Products include bug spray, roach baits and …
www.killsbugsdead.com/

News results for raid
    Hells Angel sought after raid finds weapons, ATM‎ – 11 hours ago
By Danielle Bell, Daily NewsJune 12, 2009 Police were looking for a Hells Angels member late Thursday, a day after a raid at a rural south-end property in …
Canada.com – 14 related articles »
Couple arrested in police raid on drug lab‎ – Inquirer.net – 8 related articles »
Edward V. Hanrahan, 1921-2009: Political career ended by Black …‎ – Chicago Tribune – 15 related articles »

What is RAID? – A Word Definition From the Webopedia Computer …
4 Feb 2008 … This page describes the term RAID and lists other pages on the Web where you can find additional information.
www.webopedia.com/TERM/R/RAID.html

24/7 Data Recovery by SalvageData – Hard Drive and RAID Recovery
- 5 visits – Jan 5
ISO Certified Data Recovery Services & Software Solutions by the leading experts. Fast FREE hard drive evaluations and guaranteed Server RAID recovery …
www.salvagedata.com/

Data Recovery Software – Hard Drive Recovery – RAID Data Recovery
- 3 visits – Jun 9
Data Recovery Software for all Windows File Systems, Recover Deleted Files, Hard Drive Data Recovery, RAID Data Recovery, download free demo.
www.runtime.org/

AC&NC | RAID.edu – RAID Levels – RAID Level 0 – RAID 0
Complete description and an easy-to-understand diagram of RAID level 0. Advantages and disadvantages of RAID 0 are also discussed.
www.acnc.com/raid.html

What is RAID? – a definition from Whatis.com – see also: redundant …
9 Sep 2008 … RAID (redundant array of independent disks) is a way of storing the same data in different places (thus, redundantly) on multiple hard …
searchstorage.techtarget.com/sDefinition/0,,sid5_gci214332,00.html

Raid – WoWWiki – Your guide to the World of Warcraft
Raids (a type of group) are parties of 6 to 40 people, divided into 2 to 8 groups of up to 5 players. The terms "raid" and "raiding" primarily and …
www.wowwiki.com/Raid

Computer ‘raid’ in Vernon leaves factory workers devastated – Los …
12 Jun 2009 … No immigration agents descended on Overhill Farms, a major food-processing plant in Vernon. No one was arrested or deported.
www.latimes.com/news/local/la-me-desktop-raid12-2009jun12,0,783064.story – 21 hours ago – Similar –

Book results for raid
Recent Advances in Intrusion Detection: Third … – by Hervé Debar, Ludovic Mé, S Felix Wu – 244 pages
Cavalry Raids of the Civil War – by Robert W Black – 292 pages

RAID 5 data recovery server hard disk repair 0-10 RAID restoration
Our standard turnaround time for RAID data recovery, regardless of whether it is a RAID 0 data recovery of a RAID 5 data recovery, is four to six business …
www.dtidata.com/raid_5_data_recovery.htm

RAID Reconstructor – Recover Data from a Broken RAID Array
RAID Reconstructor – Data Recovery Software for broken RAID arrays. … Because one drive is redundant in RAID 5, it is sufficient to have one less than the …
www.runtime.org/raid.htm

Data Recovery Software – Hard Drive Recovery – RAID Data Recovery
Data Recovery from RAID 0 and RAID 5. The new version has an improved analysis engine, helping you to identify the unkown RAID structure. …
Downloads – GetDataBack – DriveImage XML – Purchase
www.runtime.org/

RAID Recovery: The Data Knight Kroll Ontrack To The Rescue! : RAID …
14 Feb 2007 … RAID Data Recovery Is Possible! RAID Recovery: The Data Knight … Neither hard drive failure in RAID 1 nor RAID 5 will result in data loss, …
www.tomshardware.com/reviews/raid-recovery,1542.html

RAID Recovery, RAID Data Recovery, Hard Drive RAID Recovery …
Ontrack Data Recovery has top success rates in RAID recovery. RAID data recovery of RAID 0, RAID 5, Linux RAID and all enterprise storage systems.
www.ontrackdatarecovery.com/raid-recovery/

Raid Recovery Software – reconstruct all types of corrupted RAID …
Raid Recovery is the first tool to automatically detect the type of the original … including RAID 0, 1, JBOD, RAID 5, and 0+1, no matter whether they are … Raid Recovery gives top priority to your data, allowing you to recover and …
www.diskinternals.com/raid-recovery/

RAID Data Recovery, RAID 5 Server Data Recovery
DataClinic RAID data recovery services, hard disk and server recovery with UK wide support and service.
www.dataclinic.co.uk/hard-disk-raid-recovery.htm

Raid 5 Data Recovery | Raid 5 Recovery Service by Data Recovery Labs
Expert Raid 5 Data Recovery. Data Recovery Labs is the expert at retrieving lost data from enterprise raid 5 storage systems. Raid 5 recovery service.
www.datarecoverylabs.com/raid-5-data-recovery-raid-recovery.html

RAID 5 server Data Recovery Specialists & hard disk repair …
RAID server 0 Data recovery services specialists in extraction pst from edb file.
www.unirecovery.co.uk/