Buffalo LinkStation file structure
Buffalo Technology provides a wide range of NAS solutions for Personal, Home and Small Office use. These solutions offer a space-efficient shared storage with access over a local network. Unfortunately, despite enhanced reliability of modern NAS solutions they still remain exposed to failures and data losses.
This article describes data recovery methods from popular 4-disk Buffalo TeraStation solution of Bufallo Technology using UFS Explorer RAID Recovery and is also applicable to LinkStation Quad NAS.Contents
Warning! The instructions below assume that you have basic skills to manipulate hard disk drives. Any physical damages to hard drives may cause permanent data loss. If you are not completely sure you can work with hardware, please, turn to data recovery laboratory.
The most common causes of data loss from NAS storages include:
- Firmware or hardware failure;
- Hard drive failure;
- Faulty firmware update;
- NAS re-configuration;
- Accidental deletion of important information by user mistake.
Data recovery chances depend on embedded storage configuration and data loss causes:
- : The most widely-used. The data are distributed across the drives and are protected with parity. RAID5 ensures good operational speed and use of 3/4 of storage capacity. The data remain recoverable even without one drive.
- : Data are distributed across one pair of drives and are mirrored with the second pair of drives. RAID 10/0+1 ensures good operational speed, use of 1/2 of storage capacity and high reliability. The data remain recoverable after failure of one drive; if two drives fail recovery chances are about 67%.
- : Data are distributed across the drives. RAID0 ensures maximum operational speed and maximum use of storage capacity. Failure of one drive results in loss of all data.
- JBOD: Data are spanned along all disks. This ensures full use of storage capacity and quite good performance. Failure of one drive results in loss of all data.
- Multi-part storage: each drive has its own dedicated file system that is mounted under dedicated 'share' folder. Failure of one drive results in loss of 'share' folder on this disk.
In case of hardware failure, other than hard disk failure, firmware failure or faulty firmware update the data remain recoverable regardless of NAS configuration. NAS re-configuration usually causes partial data loss from previous configurations.
For efficient recovery from NAS storages SysDev Laboratories advise their UFS Explorer software. UFS Explorer RAID Recovery was specially designed to work with complex RAID systems. UFS Explorer Professional Recovery offers professional approach to data recovery process. These software have embedded tools for RAID recovery. Other UFS Explorer products work with RAID systems via plug-in modules. All the software employ powerful mechanisms to allow you to achieve maximum possible recovery result and are 100% reliable to guarantee complete safety of the data stored on your NAS. For more detailed information, please, go to .
Prepare the hardware
Note: Do-it-yourself data recovery makes sense only when:
- All NAS hard drives are workable;
- One drive failed – for RAID5 or RAID 10 (0+1) only;
- Two drives failed – for RAID 10 (0+1) only.
As NAS devices don't provide low-level access to data you'll have to disassemble the storage and connect its hard drives to a recovery computer before you start data recovery. Please read article for instructions. Mark drives order with paper stickers or soft ink marker.
Also prepare a safe storage where you will copy the recovered data to. Network drives or external USB drives are preferable.
4-disk Buffalo TeraStation and LinkStation Quad have the following data layout:
Buffalo LinkStation 420 6 TB 2-Drive 2 x 3 TB High Performance NAS Personal Cloud Storage and Media Server (LS420D0602)
Personal Computer (BUFFALO)
Buffalo Link Station - File Time Stramps?
I just bought a Buffalo Link Station. When I copy files to it, the file date/time stamps are changed. This messes up a backup program I have that only copies modified files. It thinks that files are modified even when they aren't. Has anybody heard of this prob or how to fix?
Is the time difference 1 hour or 2 seconds? The 2 second difference is a result of differences between NTFS and FAT file systems, and the 1 hour difference is a Daylight Savings Time difference, and most backup programs have options to ignore these.