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November 27th, 2018 10:00

SATA disk not found on PowerEdge R640

Hi,

I have a Dell PowerEdge R640 with a SATA disk plugged into the front bay. RAID has been disabled. This system was working fine and booting into Centos. I left it powered off for about 1 month. When I turned it on today I find that it does not detect any hard disks. I have ensured that BIOS SATA setting is set to "AHCI mode" and I have tried the disk on multiple bays. I have also tested the disk on another system and it works fine there.

During BIOS bring up I see the disk light on the SATA drive blinks couple of times.

I have tried googling for a solution, but did not come up with anything helpful. What can I do to make the server detect the disk?

Thanks

 

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8.7K Posts

November 27th, 2018 12:00

Hi,

Does the drive have the LEDs lit? Is there a RAID controller in the system where the drive is connected?

November 27th, 2018 12:00

Thanks for your response. Yes, the drive LED is lit and very briefly the drive access LED flashes twice while BIOS is coming up. How do I detect if the system has a RAID controller? I know I've disabled RAID in BIOS.

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8.7K Posts

November 27th, 2018 13:00

November 27th, 2018 14:00

There are 4 NIC cards. It does not show any PERC controllers. 

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8.7K Posts

November 27th, 2018 14:00

If you go to the boot menu does it show the drive?

November 27th, 2018 14:00

No, it does not show the drive. 

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8.7K Posts

November 27th, 2018 15:00

Try reseating the drive, just take it out and put it back in.

November 27th, 2018 15:00

I tried that. I also tried moving it to a different bay. Nothing helped

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8.7K Posts

November 27th, 2018 17:00

Do you have another drive you can try?

November 27th, 2018 17:00

Although I don't see PERC in the BIOS I see PERC controller on the motherboard. Please see attached image.

dell_perc.jpg

November 28th, 2018 09:00

I tried another drive. Still no luck.

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8.7K Posts

November 28th, 2018 10:00

Try reseating the PERC and cabling.

November 28th, 2018 12:00

I removed and reinstalled PERC but that did not help either.

November 29th, 2018 08:00

BTW, the hard disk that I'm using is not a DELL hard disk. It is 500GB HGST hard disk. Will this make a difference?

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8.7K Posts

November 30th, 2018 07:00

It should work, but we do not test non dell drives. Is it under warranty?

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