Data Recovery Blog

Possible causes of hardware related disasters:
•    Server hardware upgrades (storage controller firmware, BIOS, RAID firmware)
•    Expanding storage array capacity by adding larger drives to controller
•    Failed array controller
•    Failed drive on storage array
•    Multiple failed drives on storage array
•    Storage array failure but drives are working
•    Failed boot drive
•    Migration to new storage array system

Case study
Netware volume server, Traditional NWFS, failing hard drive made volume inaccessible; Netware would not mount volume. Errors on hard drive were not in the data area and drive was still functional. Copied all of the data to another volume; 100% recovery.
Evaluation time: 1 hour

Causes of software related disasters:
• Business system software upgrades (service packs, patches to business system)
• Anti-virus software deleted/truncated suspect file in error and data has been deleted, overwritten or both

Case study
Partial drive copy overwrite using third party tools, overwrite started and then crashed 1% into the process, found a large portion of the original data. Rebuilt file system, provided reports on recoverable data; customer will be requiring that we test some files to verify quality of recovery.
Evaluation time: 1 hour

Causes of user error disasters:
•    During a data loss disaster, restored backup data to exact location, thereby overwriting it
•    Deleted files
•    Overwritten operating system with reinstall of OS or application software

Case study
User’s machine had the OS reinstalled – restore CD was used; user looking for Outlook PST file. Searched for PST data through the drive because original file system completely overwritten. Found three potential files that might contain the user’s data, after using PST recovery tools we found one of those files to contain all of the user’s email; there were missing messages, majority of the messages/attachments came back.
Evaluation time: 5 hours

Causes of operating system related disasters:
• Server OS upgrades (service packs, patches to OS)
• Migration to different OS

Case study
Netware traditional, 2TB volume, damage to file system when trying to expand size of volume, repaired on drive, volume mountable. Evaluation time: 4 hours

When a data loss occurs on something as valuable as a server, it is essential to the life of your business to get back up and running as soon as possible.

Hard Disk PCB Boards

Samsung BF41-00373A PCB FAQs and Solutions

DATARECOVERYUNION.COM4 years ago5 years ago02 mins

We first look at the following two pictures. Picture 1 is the “BIOS CHIP” of the circuit board. When we replace the PCB, we need to swap the “BIOS CHIP” with your original PCB. Picture 2 shows the “Board Number” of the board, and the “Board Number” must be the same! FAQs of BF41-00373A PCB…

Data Recovery Cases

Reinstall the system D drive data loss

DATARECOVERYUNION.COM2 years ago01 mins

Case:When Ms. Zhou was reinstalled, she forgot to backup the important data, which caused some data to finally lose. Solution:After Miss Zhou’s telephone consultation comparison, she finally decided to recover the data recovery center.The engineer tested Miss Zhou’s hard disk. Because Miss Zhou installed the system, the data could be covered a little.The engineer put…

Computer FAQs

Windows xp – How do I delete a ‘locked’ file?

DATARECOVERYUNION.COM5 years ago3 years ago02 mins

On Windows XP, when I try and delete a specific file it says: Cannot delete blah.blah: Make sure the disk is not full or write-protected and that the file is not currently in use. How can I go around this warning and delete it anyway? Solution: To successfully delete a locked file, you will…

Data Recovery

Open data recovery wd10spcx western digital 1t

DATARECOVERYUNION.COM4 years ago01 mins

Case:Mr. Zhang’s failure described: “During the use of mobile hard disks

Computer FAQs

Windows – Metro apps crash on startup, driver or permissions issue?

DATARECOVERYUNION.COM5 years ago014 mins

After installing Win8 x64 RC, Metro apps worked correctly, but desktop OpenGL apps were slow and unresponsive. I installed the latest Win8 nVidia drivers, and the OpenGL apps started working correctly. At the same time, because of annoying permission messages, I changed the C: drive and all its files ownerships to my user, and gave…

Data Recovery Cases

HP Server RAID Data Recovery Server Data Recovery

DATARECOVERYUNION.COM4 years ago05 mins

Case:On February 9, 2012, the Data Recovery Center received a consultation phone from the information security department of Supor (China) Co., Ltd., probably the case that the client user reported that there was a set of 6 -plate array data in the morning.In the array cabinet No. 1 and No. 5 bright yellow lights, the…

Data Recovery Cases

Seagate 80GB open disk to extract data

DATARECOVERYUNION.COM3 years ago01 mins

Case:Hard disk does not recognize the disk Solution:After the testing of the engineer, the two magnetic heads of the hard disk were damaged, and the data was restored to the dust -free studio.

Computer FAQs

Windows – My computer reboots when I tell it to shutdown

DATARECOVERYUNION.COM5 years ago02 mins

There are about 40 computers at work with this problem. They all have an ASUS P5KPL/1600 motherboard. They are all running SUSE Linux 11.1. When I tell the computer to shutdown either through the UI or by issuing shutdown -h now in a root terminal, the computer wull shutdown for about 1 second and then…

Hard Disk Repair

Seagate Barracuda 7200.11 PCB Buying Guide

DATARECOVERYUNION.COM14 years ago4 years ago03 mins

As we know: Seagate Barracuda 7200.11 HDD can’t spin; board/chip be burnt; interface broken; etc. These problems are caused by PCB malfunction. Swap PCB of your Seagate Barracuda 7200.11 hard drives can resolve the problems.

1. Seagate Barracuda 7200.11 Hard Drives PCB Buying Guide:

For Seagate HDD, just need the donor PCB has the same board number as yours.

* Seagate Hard Drive PCB Swap

2. Before Seagate Barracuda 7200.11 HDD PCB Swap you should know:

1. Most PCB’s BIOS chip(ROM Chip) store the unique information. We need change the BIOS form original PCB to replacement PCB, in order to make the replacement PCB compatible with the HDD. The 8pins (4 pins on each sides) with 25P05VP、25P10VP、25F512、25F1024、25F1024AN、SST25VF512、SST25VF010, etc. are the BIOS Chip.

Tips: Most of the TV/Phone Repair Shop can offer these services for just $5-%20

* Hard Drive PCB Swap: Change BIOS Chip, Main Chip

2. Some PCB don’t have separate BIOS. The BIOS be integrated on the Main Controller IC(The biggest chip on the board, also named Main Chip). We should exchange the Main Controller IC to let the HDD be recognized.

3. Where to buy Seagate Barracuda 7200.11 PCB Circuit Boards?

Seagate 100565308 PCB	Seagate 100512588 REV A PCB
Seagate 100466725 PCB	Seagate 100498535 PCB
Seagate 100475720 PCB	Seagate 100442000 REV A PCB
Seagate 100512588 REV A PCB	Seagate 100475720 PCB
Seagate 100466725 PCB	Seagate 100530756 REV A PCB
Seagate 100496208 PCB	Seagate 100496208 PCB
Seagate 100466824 PCB	Seagate 100498535 PCB

Note: Seagate Barracuda 7200.11 PCB sells on HDDZone.com are fully tested before shipment(worldwide free shipping now!); These are just PCB (Printed Circuit Boards), not the whole HDD (Hard Disk Drive).

More other pcb swap guide please refer to this post: hard Drive PCB Swap

Seagate 100466725 PCB

Seagate 100475720 PCB

Seagate 100512588 REV A PCB

Seagate 100530756 REV A PCB

Seagate 100496208 PCB

Seagate 100498535 PCB