Data Recovery Blog

HDD Printed circuit board (PCB) with board number 2060-771824-000 is usually used on these Western Digital hard disk drives: The 2060-771824-000 Western Digital PCB repair process can usually be divided into 2 steps: find a replacement PCB and firmware transfer. 2060-771824-000 Western Digital PCB: Board Number Finding a donor Western Digital PCB board is easy,…

Computer FAQs

Windows 7 VPN how to not tunnel internet?

DATARECOVERYUNION.COM3 years ago01 mins

I just put windows 7 on my work laptop and im setting it all up like it used to be. But i cant remember what option i changed to stop my internet traffic being tunneled over the VPN connection. I only want to connect to exchange and intranet over VPN. Solution: I found it, it…

Hard Disk Repair

How to low-level format a Mac hard drive using Drive Setup?

DATARECOVERYUNION.COM15 years ago4 years ago01 mins

To low-level format a hard drive using Drive Setup, follow these steps:

Start by selecting the hard drive you wish to low-level format.
Under the Function menu select Initialization Options…
Select Low Level Format (a check mark will appear) and click OK.
Click Initialize at the bottom of the main screen.
Again click Initialize.

Drive Setup will low-level format the drive and prepare it for use with the Mac OS, after which it can be loaded with software.

Note:

Low-level formatting a hard drive will destroy all data on the drive and destroy any chance of data recovery. We suggest you make a reliable back up of all data before attempting this.
Canceling a low-level format of a SCSI hard drive before it has completed can render the drive permanently inoperable.
Low-level formatting can take several hours depending on the drive.

Data Recovery Cases

Data loss recovery case caused by one-click system installation

DATARECOVERYUNION.COM1 year ago01 mins

Case:The HP laptop system of the district customers runs very slowly, so the one -click recovery of the notebook’s self -recovery is used to reinstall the system.As a result, after turning on the computer into the system again, I found that there was only a C drive on the computer, and the previous D, E,…

Data Recovery Cases

250G Seagate hard disk data read slowly and successfully recovered case

DATARECOVERYUNION.COM2 years ago01 mins

Case:The operating system is Windows, and the file system is NTFS/FAT, 1 250G Seagate hard disk. The data reads slowly. Solution:The engineer evaluates the degree of damage to the physical bad sectors of the hard disk.When reading the hard disk again, focus on the sector that is not seriously damaged, and provides higher integrity for…

Computer FAQs

Windows – I want to intercept a given program before it runs and run my own program first

DATARECOVERYUNION.COM3 years ago2 years ago04 mins

I’m going to work with Python 3, mainly interested in Windows for a start. If it makes a difference, then Windows 10 specifically. Example of what I want to happen: User starts my script. User decides to blacklist the game Dota 2. User tries to open Dota 2. Because Dota 2 is on the blacklist,…

Computer FAQs

Performance – Google Chrome is slow to localhost

DATARECOVERYUNION.COM3 years ago01 mins

For some reason Google Chrome is slow when I’m working against localhost. I had the same problem in Firefox 3.5 but I changed some IPv6 setting in about:config which fixed the issue. I think the same problem occurs in Google Chrome, but I can’t find out how to fix it. Any ideas? Solution: Just an…

Data Recovery Cases

An error recovery case of the hard disk offline database in HP388G8 server RAID

DATARECOVERYUNION.COM2 years ago02 mins

Case:HP388 G8 server, the bottom layer is RAID5 made of 6 SAS 500GB disks.The operating system is RHEL 5.5, which stores a background of the company’s application to a large number of PHP web files and mysql databases.RAID’s multiple disk faults are offline, causing RAID to collapse. When the administrator attempts to restore RAID later,…

Hard Disk Repair

Difference Between WD Desktop Edition and RAID (Enterprise) Edition Hard Drives

DATARECOVERYUNION.COM14 years ago4 years ago03 mins

Western Digital manufactures desktop edition hard drives and RAID Edition hard drives. Both of them are designed to work specifically as a stand-alone drive, or in a multi-drive RAID environment.

If you install and use a desktop edition hard drive connected to a RAID controller, the hard drive may not work correctly. This is caused by the normal error recovery procedure that a desktop edition hard drive uses.

When an error is found on a desktop edition hard drive, the drive will enter into a deep recovery cycle to attempt to repair the error, recover the data from the problematic area, and then reallocate a dedicated area to replace the problematic area. This process can take up to 2 minutes depending on the severity of the issue. Most RAID controllers allow a very short amount of time for a hard drive to recover from an error. If a hard drive takes too long to complete this process, the hard drive will be dropped from the RAID array. Most RAID controllers allow from 7 to 15 seconds for error recovery before dropping a hard drive from an array. So it is not recommend installing desktop edition hard drives in an enterprise environment (on a RAID controller).

Western Digital RAID edition hard drives have a feature called TLER (Time Limited Error Recovery) which stops the hard drive from entering into a deep recovery cycle. The hard drive will only spend 7 seconds to attempt to recover. This means that the hard drive will not be dropped from a RAID array. While TLER is designed for RAID environments, a drive with TLER enabled will work with no performance decrease when used in non-RAID environments.

Note: There are a few cases where the manufacturer of the RAID controller have designed their drives to work with specific model Desktop drives. If this is the case you would need to contact the manufacturer of that controller for any support on that drive while it is used in a RAID environment.

Hard Disk Repair

Are Seagate and Maxtor External drives hot swappable?

DATARECOVERYUNION.COM14 years ago4 years ago01 mins

Yes, with the following recommendations:

Never unplug any eSATA, 1394, or USB device that is being actively accessed by the operating system (such as during a file copy).

Unplugging a device while it is being used may result in a system crash and the loss of the ability to recover the data already written to the drive.
For Macintosh – If you want to unplug an External Drive you must first drag the mounted drive icon to the trash to dismount it. After the drive is dismounted then it can be unplugged.
For Windows – If you wish to disconnect an External Drive, you must use the “Safely Remove” or “Unplug and Eject Hardware” utility located in the Windows Task Bar ( identified by the Green Arrow Icon located close to the clock on your desktop).