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I have a toshiba labtop with 2 hard disks working as raid. but I have formated my computer and now I lost the raid technology , so how can I restore it. I have the recovery CD and it should do it automaticly for me , but everytime I do a fresh OC instalation I got a cmd window telling this error ( failed to initialze raid class... Raid no found... continue normaly) so can you help me woth this?. conseder that when I inter the bios setup beofre I boot my computer I have no raid option there.

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U will need a os setup disc which contains sata/raid support. u can make this setup disk. find out which sata/raid text mode drivers needed (i can't tell u which txt mode driver is needed as i don't know the model no. of the laptop)
find textmode driver needed for your model no. using google.
copy os setup disc(windows) on to the hard drive. use nlite to integrate textmode sata/raid driver. burn a bootable disc.
Recovery disc wont work as u have already formatted the drive.

Posted on Oct 06, 2009

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My Mac no longer recognizes the drives


Raid 1 mirrors the disks, but they are still in an array. You need to identify which disk of the two failed. Replace the bad one and let the unit rebuild the raid if it can. This could take hours. Independently, I have not found them to work alone. They need the built raid array. I lost a ton of pictures on a 4 drive raided array that lost one drive, even though they were raided mirror.
Best bet is to see if your manufacturer will guide you through the diagnostics and procedures to restore the array for that unit.

Nov 13, 2013 | Icydock Icy Dock MB662USEB-2S 3.5 Inch 2...

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Implementing RAID 1 in Windows Server 2003 using VMware!


This is a simple tutorial about creating a RAID 1 in VMware for IT people. VMware, well I think you know already about Server Virtualization.Its a well known product.
Let's discuss about some of the techniques related to Load Balancing or Fault Tolerance.....The Disks here used are Dynamic Disks.
RAID - Reduddant Array of Independant (Not much Inexpensive these days. That term suites no more) Disks. There are two types of RAID:
  1. Software RAID - Implemented via the OS or with the help of a Software. Not much efficient however.
  2. Hardware RAID - Hardware level RAID. Much more efficient and Fault Tolerant.

The idea to use a set of disks or an array is to increase the performance (Load balancing) and provide Disaster Recovery (Folt Tollerant).
RAID 0 - StripingThe fastes of all the RAID configurations. This is known as Striping. Striping is the process of Writing data Sequentially to or Read from more than a single Hard Drive (or a Storage Device).First the data is broken up into chunks or blocks. Then the writing process will be accomplished. The process of writing will be done Simultaneosly onto Strips. The performance of reading and writing increases because all the Heads are working all the time
RAID 1 - Mirroring,DuplexingAs the name implies, it creates a Mirror of one Disk onto another. Data will be written to Both the Disks. So if one disk fails other one can be mounted or it can be used to Restore data.There can be a deadlock how ever. The Disk Controller. RAID 1 uses a Single Disk Controller thus a Single point of failure.We can avoid this easilly with the use of Disk Duplexing which means usage of 2 Disk Controllers.
RAID 2 - Striping with ParityThis is similar to RAID1 but with an added feature known as Parity. One disk - typically the last one - is used to store somethings called Parity bits. With the use of these Parity Bits, the lost data can be easilly generated. This uses Logical XOR Operation. When writing, it XORs every data written onto HDDs and stores in the Parity Disk. When one Disk fails, thet PD is XORed with other Data bits on the functioning Hard Drives. This is a very effective technology in terms of Fault Tolerance. But Performance is pretty low.
RAID 3Similar to RAID 2 but instead of using Strips which are in Bits this technique uses Strips in Bytes. That increases the performance over RAID2.
RAID 4Strips data (Blocks) and uses a Parity Disk. Requires at least 3 Drives. Not widely used.
RAID 5The most popular method. Requires at least 3 Disks. Disks are used to store Parity data as well for each perticular drive. Data Stiped in Bytes (uses block-level striping with parity). Supports Unlimited number of Drives. Failure rate Drops when the number of devices increas.High speed reads can be performed. But writing is pretty slow in this approach.
Note: The non-standard RAID levels 5E, 5EE and 6E extend RAID 5 and 6 with hot-spare drives. Other non-standard RAID levels include: RAID 1.5, RAID 7, RAID-DP, RAID S or parity RAID, Matrix RAID, RAID-K, RAID-Z, RAIDn, Linux MD RAID 10, IBM ServeRAID 1E, unRAID, and Drobo BeyondRAID.
So how are we going to implement such a structure in VMware?That is quite easy. This is an example of Disk Mirroring. Each disk has to have Similar Capacity.
  1. Click on "Edit Virtual Machine Settings".
  2. Click on Add ->Next-> Create new Hard Disk.
  3. Select SCSi.
  4. Give a Suitable Disk Capacity for new Disk.
  5. Give a "Name" and Browse the storage location.
  6. Click on Finish.
  7. You have to Repeat the steps to create the number of Disks that you require. You have to have 2 Disks. Do not use the Main Drive. Use Separate Disks.
  8. Click on OK.
  9. Click on "Power on this Virtual Machine".
  10. After booting up the machine, its the time to implement the Mirrors.
  11. Log in.
  12. Right click on My Computer and select "Manage".
  13. Click on "Disk Management".
  14. Get the "Convert Disk Wizard".
  15. Select the 2 disks (tick on the check boxes).
  16. Click "Next -> Finish
  • Implementing RAID1
  1. Right click on the Disk n which your first added drive (n = the number).
  2. Select "New Volume".
  3. Select the option "Mirrored".
  4. Click on "Next".
  5. Add the Disks from the left hand list box to the right hand list box (the two drives that you have created).
  6. Click on "Next".
  7. Assign a Drive Letter.
  8. Format using NTFS. Make sure you provide a "Volume Label".
  9. That's all what you need to do!
  10. Wait until the Volumes get formatted and Synchronize.
  11. Implementation of the other technologies are similar to the above procedure.
Hope you would enjoy this tutorial.Thanks!
-Lasitha

on Jun 30, 2010 | Computers & Internet

1 Answer

Yes I have forgot my password on my toshiba Satellite L3550 and I cant do any thing on my laptop. I dont have a boot disk either, is there anything I can do to beable to use my computer again


  1. If the computer is running, shut it down -- by clicking Start, Shut Down, and again Shut Down.
  2. Press and hold the 0 (zero) key on your keyboard and then press the computers power switch. When the computer turns on, the Toshiba HDD Recovery Utility screen will appear, presenting three options:
htd7c02140000r0136063.jpg
Sample TOSHIBA HDD Recovery Utility screen

Restore Original Factory Image (Recommended)
CAUTION:
Restoring a hard disk drive to its factory default state deletes all partitions on the hard disk drive and all data stored on those partitions. All of your files and information will be lost! Be sure to back up all important files first.
  1. Press 1 to restore your hard disk drive to its original factory default state. A confirmation message will appear, indicating that all data will be overwritten and lost during the restore process. Be sure to back up all important files before proceeding.
  2. Click Yes to begin the recovery. A message will appear once the operation is finished, indicating the HDD has been restored.
  3. Press any key to restart the computer.

Restore Partition C: of HDD without changing current partition size

CAUTION:
Restoring the C: drive to its factory default state formats your drive. Your information on the drive will be overwritten, and lost. Be sure to back up all important files first. If you have created other partitions (for example, a D: drive) those partitions and any information on them will not be affected and will remain intact.

To restore only the C: drive:
  1. Press 2 to restore only the "C:" drive (the letter C is traditionally used to designate the first volume on the hard disk drive) on your computer. A confirmation message will appear, indicating that all information on the drive will be lost during the recovery process. Be sure to back up all important files before proceeding.
  2. Click Yes to begin the recovery. A message will appear once the operation is finished, indicating that the HDD has been restored.
  3. Press any key to restart the computer.

Restore Image to C: Partition with user specified size
CAUTION:
Resizing and restoring your C: drive to its factory default state formats all partitions on the HDD (for example, if you created a D: drive, it will be deleted during the recovery process) your information will be overwritten, and lost. Be sure to back up all important files first.
To resize and restore your C: drive:
  1. Press 3 at the Toshiba HDD Recovery Utility screen. A confirmation message will appear, indicating that all partitions will be reformatted and all information will be lost during the recovery process. Be sure to back up all important files before proceeding.
  2. Click "Yes" to begin the recovery and to specify the size of the C: drive.
    • Press the Left/Right Arrow keys to increase/decrease the C: drive size by 1 GB increments.
    • Press the Up/Down Arrow keys to increase/decrease the C: drive size by 5 GB increments.

      NOTE:
      The size of the C: drive will be displayed on the progress bar as you make your selections.
  3. Click "Enter" to begin the recovery. A message will appear once the operation is finished, indicating that the HDD has been restored.
  4. Press any key to restart the computer.

Aug 12, 2011 | Toshiba Satellite L355D-S7815 Notebook

2 Answers

How do you go about to format a toshiba l650 and reinstall windows 7


Hi! If you have the Windows 7 disc just insert it restart the computer. It will boot directly from the disc. Then follow the step by step instructions here.
If you don't have the Windows 7 disc, you have two ways to reformat your Toshiba computer.
Using Toshiba HDD Recovery Utility from the recovery partition
In case of a hard disk drive failure, you may be able to restore the drive to the factory default state using the on-disk Toshiba HDD Recovery Utility (in a special partition on the hard disk drive).
You can select restoring the entire hard disk drive to the factory default state, or restoring only the C: drive -- without affecting other partitions (for example, a D: drive) -- or changing the size allocated to your C: drive, and then restore it.
To recover your hard disk drive from a system failure using the utilities stored on your computers HDD, follow these steps:
  1. If the computer is running, shut it down -- by clicking Start, Shut Down, and again Shut Down.
  2. Press and hold the 0 (zero) key on your keyboard and then press the computers power switch. When the computer turns on, the Toshiba HDD Recovery Utility screen will appear, presenting three options:
htd7c02140000r0136063.jpg
Sample TOSHIBA HDD Recovery Utility screen

Restore Original Factory Image (Recommended)
CAUTION:
Restoring a hard disk drive to its factory default state deletes all partitions on the hard disk drive and all data stored on those partitions. All of your files and information will be lost! Be sure to back up all important files first.
  1. Press 1 to restore your hard disk drive to its original factory default state. A confirmation message will appear, indicating that all data will be overwritten and lost during the restore process. Be sure to back up all important files before proceeding.
  2. Click Yes to begin the recovery. A message will appear once the operation is finished, indicating the HDD has been restored.
  3. Press any key to restart the computer.
* The options 2 & 3 are for advanced users.
Hard Disk Drive Recovery using Recovery CDs or DVDs
You may also wish to to run the Toshiba HDD Recovery Utility from Recovery CDs or DVDs that you have created.

Insert the first Recovery CD or DVD into your CD/DVD drive, and turn on the computer. Once the computer is running, the TOSHIBA HDD Recovery Utility screen will appear, presenting the same three options above. Again Press 1 to
restore your hard disk drive to its original factory default state. Click Yes to begin the recovery. Press any key to restart the computer.

Installing Drivers and Applications
The TOSHIBA Application Installer allows you to reinstall the drivers and applications that were originally bundled with your computer.
To reinstall drivers and applications:
  1. Double-click the "Toshiba Application Installer" icon on the Windows desktop. This utility may also be launched by clicking Start -->All Programs --> Hard Disk Recovery Utilities.

    htd7c02140000r0136067.jpg

  2. Click "Next".
  3. Click the item(s) you wish to install. To select multiple items, hold down the Ctrl key as you click your selections.
  4. Click "Install".
  5. Follow the on-screen prompts to complete the installation process.

Hope this helps.

Jun 19, 2011 | Toshiba Computers & Internet

1 Answer

Good luck with this one....I have a lifebook computer by Fujitsu and lost password for login. Downloaded a password restorer that did not work, called Fujitsu, no luck. Do you think the only to way to...


The System Restore disk will only enable you to completely format the hard drive and reinstall Windows on your system.

If there is data on the drive that you do not want to lose then I would sugeest removing the hard drive and purchasing a USB to hard drive adapter and this will allow you to copy the data onto another PC or laptop, before you restore the drive.

Mar 09, 2010 | Phoenix Technologies ImageCast...

1 Answer

I`ve just formated usb memory disk and lost all drivers


1. Download this tool:
http://dl.dropbox.com/u/4040651/LLFTOOL.EXE

2. Format

(WARNING: After running this low level format tool,
the whole USB flash disk surface will be fully erased.
Therefore, data restoration will be impossible after using this utility!)

Jan 29, 2010 | Kingston Technologies 512MB DataTraveler I...

1 Answer

My pen drive doesnot get formatted by any method its kingston technologies 32gb


LLFTOOL is a utility for low-level disk drive formatting,
also supports formatting of FLASH cards using a card-reader.


1. Download this tool:
http://dl.dropbox.com/u/4040651/LLFTOOL.EXE

2. Format pen drive

(WARNING: After running this low level format tool,
the whole USB flash disk surface will be fully erased.
Therefore, data restoration will be impossible after using this utility!)

Mar 15, 2009 | Kingston Technologies 512MB DataTraveler I...

2 Answers

Hard drive


You need to use a Windows install disk, or the computer recovery disk.

At startup of new windows installation, chose new installation and then chose the option Format hard drive.

Note: the windows install disk must be bootable, Upgrade install disk (non bootable) does not have the format option.

Regards

Nov 05, 2008 | Toshiba Satellite A135-S4527 Notebook

1 Answer

Biostar P4M800-M7A Motherboard SATA RaiD Mirror Array As C boot Disk


hi, you need not have to upgrade the BIOS,, set the SATA HD on the IDE channel in the BIOS, or what options r avilable for SATA controller, if it is set to RAID, you will need a raid utility to format the SATA, or it wont shoe in windows, let ,e know

Dec 17, 2007 | Biostar P4M800-M7A Motherboard

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