LinkStation Quad - Raid 5 problem

[twcheung]

   

Hi,

 

I bought a Linkstation quad 3 month ago and installed with 4 HD with raid 5 configuration. Recently, I got my linkstation quad hangup during web admin browsing . Therefore, power off the machine. When I restart, it keep blinking on the blue led for a long time and the web admin is inaccessible. It has been blinking for over night. Therefore, I power off and power on it again. The problem is the same.

 

I wonder it is LInkstation hardware failure. Therefore, I remove the four disk and insert another HD used before. The linkstation can startup successfully and working normally with 1 HD.

 

Therefore I remove the 1 HD and insert the original 4 HD. This time it can startup and blue led finally stopped with red LED blinking. I can enter the web admin but cannot access the harddisk data. In the web admin, it show the LS can only identify there are 4 HD with unknown format.

 

It look like the raid5 configuration is lost. Is there any way I can rebulid the raid 5 configuration without loosing data ? I cannot imagine how this can happen Raid 5 will fail even without hardware failure.

 

Tim

 

[PCPiranha]

Sounds like the boot image was lost,  I would replace the four drives and try the TFTP procedure.  If you dont have any luck try booting the unit up with only 3 HDDs in at a time until you find the disk the LS will boot up without.

[twcheung]

   

Hi

 

Thanks for your response.

 

I think I don't have the luck. However, I did try to boot up 3 HDDs in different ways. The LS can boot up but cannot recognise the 3 HDDs format and raid 5 configuration. Are there any way I can restore Raid 5 configuration ?

 

Tim.

 

[PCPiranha]

Replace the bad drive (the one that it boots up without).  Then restructure it into the array.

[twcheung]

   

Hi PCPiranha,

 

Actually, the four HDD does not have any problem. It does not look like there are any solution to restore my valuable data. I  don't have any trust on the LS/Buffalo anymore. It is unreliable. I will reformat the HDDs anyways.

 

Thanks anyway.