No matter what type of RAID setup you have, LWG has the knowledge, tools and experienced professionals to get your data back.

Symptoms of Failing Arrays

• The system fails to boot.
• The computer or server is left with a black screen full of white text.
• The server is emitting a siren or alarm.
• The LED indicators on the hard drive bays show one or more bad drives.
• The server fails to boot and the screen shows a message such as or similar to:
• No boot device found
• No container found
• No array found
• No such device
• Please insert boot device and press a key
• SCSI ID's #,# are not present

Common Reasons for Failure

Due to the variety of RAID arrays, SANs and NAS devices; there can be many ways a system may fail. Some arrays can handle certain failures, while other arrays cannot. Some typical failures are:

• One or more drives in the array fail.
• Unexpected power outage, or unexpected power down of the server.
• RAID Controller card failure.
• RAID Controller firmware bug.
• Timing/firmware issues between drives in the array.
• Type of data stored on array.
• User mistake, such as accidentally initializing the array.

Recoverable Types of RAID Arrays

There are many different types and combinations of RAID arrays. The most common are listed below:

• RAID levels: 0,1,3,5,6,10,20,50
• RAID with hot spare.
• RAID hot swappable.

Recoverable Interface Types -IDE, EIDE, SCSI, SATA, SAS, or Fibre Channel

How LWG Can Help

LWG Data Recovery can assist you in the advent of a major array failing. We have experience with all major manufacturers. Below is our Array recovery process:

1. Determine what data has to be recovered
2. Examine the failed array
3. Determine what failed
4. Make necessary repairs to the array
5. Determine raid settings
6. Rebuild array
7. Extract data
8. Return data to client

The type of RAID, number of drives and mode of failure, all play a part in determining the correct method to recover your data. If a controller card fails we can 'virtually' rebuild the Raid and extract the data. If a hard drive fails we can repair the drive or drives in one of our three clean rooms and then virtually rebuild the raid. No matter what the cause we have a solution.

Standard Service - LWG Data Recovery will perform a comprehensive evaluation of your media to assess failure and determine whether a successful recovery will be possible. If recovery is deemed possible and you elect proceed, our recovery specialists will work during normal business hours of 8 a.m. to 5 p.m. to ensure your data is recovered in a timely manner. Standard cases will then be recovered in the order in which they are received.

Express Service – for clients seeking expedited service, our express package allows cases to be placed at the top of the queue where it will be handled immediately by our recovery specialists. Hours of service are during normal business operations (8 a.m. to 5p.m.).

Weekend Service – for losses that require attention during Saturday and Sunday hours, our weekend service gives clients the option to have our recovery specialists continue recovery operations during 8 p.m. to 5 p.m. on Saturdays and Sundays. (Does not include holidays)

Emergency Service – This option is for clients with highly critical data requiring further business interruption to be minimized. Our recovery specialists will perform recovery operations around the clock (including holidays) until the recovery is finished.

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