One of my 4 disks in MyCloud 4100 showing red light

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WD_cloud_PR4100
WD_cloud_PR41003072×4080 416 KB

As you can see int the foto, the red light is showing in one of the disk and its not working

i tried restarting it but nothing happened

kindly help, i dont want to loose my research data
i trusted with WD and this happened to me. kindly help as fast as possible.

2

A solid red on a disk led typically means the drive has failed.

If you’re setup in Raid5, your data is OK for now, but I would back it up to another location ASAP, in case another drive fails. You’ll need to replace the drive.

Your display indicates a power loss. Was that for the power supply?

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What do you mean by drive failed? The 4th disk is showing solid red, does that means it have failed? Is it irreversible? Means we can never use the disk4 now?

Also, what does the power loss on port1 means? I did not paid attention to the display before…is it problematic? What is the issue here? The WD cloud device is connected via a UPS for power back up to save it from sudden power loss.

Kindly help…

  1. Does the failed 4th disk affect the whole device capability? Also if i have something stored in the device it does not ask for which drive its being saved on. So how do i know my data is not in the failed disk, out of the 4.

  2. The message on the display, power loss on port1, what does that means, what is its implications? Whats port1 and how this power loss

  3. issue can be avoided.

4

Do you have a UPS plugged into the NAS? Did you lose power?

Is your PR4100 setup as Raid5 for all 4 disks? If so, your data is safe for now. I would back it up to another location ASAP. If not, you need to post how it’s setup.

You can use the rocker switch on the front panel (right of the display) to scroll through the display to see other messages.

You need to log into the dashboard and check the disk health under Diagnostics (click on the little triangle). Then scroll down to read the disk health. If it reports the disk is bad, you need to replace it.

On the dashboard, you can also click on Storage, then read the Raid profile (to verify the Raid setting), then click on Disk Status to see what’s happening to the individual drives.

After getting a full backup, you can go to Settings, Utilities and try running the Quick Test. Perhaps it might clear the light (not likely). You could run the full test but that could take hours to complete.

5

i will do check the other things

but yes the device is connected to a UPS as precaution so that any fluctuation in power supply doesnt affect the device.

6

It’s possible the UPS tripped and reported the power loss to your NAS.

I have an older EX4 on an APC UPS. 4x2tb drives in Raid 5. If the power goes out, mine just reports “On UPS Power” (or something like that. You’ll see the event in the logs.

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capacity_29tb
capacity_29tb3072×4080 351 KB

drive_status_healthy
drive_status_healthy3072×4080 363 KB

i checked the logs with the buttons and these are some of the other messages in the display.
but the power loss detected on port1 is still there

can you tell if there is any issue with the drive?

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also can you tell me where will find the dashboard of the cloud device and what credentials will be needed to login, i might have lost the username or password.

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Go here and get the User Guide. You need to scroll down the page to find them.

Point your browser to the IP address your PR4100 is using. Don’t know it? You can use the up/down buttons on the front panel to scroll the display to the IP address. You’ll get a login page. The user is admin (should already be there). You’ll need to enter the password you setup. You could try leaving it blank in case you never assigned one.

10

THANKYOU SO MUCH
so, i was able to login into the dashboard of the WD cloud

DISK PROFILE shows the all 4 disks are healthy/good but the
RAID PROFILE says one or more disk degraded, which is pointing to the one showing solid red colour i suppose

I am attaching the related fotos,
kindly see and suggest whats the status of my drive and data in them…
I mean am i at risk of losing my data??
is there any way i will be able to get my degraded disk back into function?
i can see some people suggesting the rebuilding…but is there any risk of losing my data doing that??

DISK_profile_all_4_healthy
DISK_profile_all_4_healthy2743×1739 288 KB

RAID_profile_one_drive_degraded
RAID_profile_one_drive_degraded3072×2178 410 KB

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Risk of loosing data, potentially Yes.

I have this happen on my EX4 occasionally. When that happens, I shut down my EX4, remove the drive and make sure the drive contacts are clean (blow some compressed air in the slot). Reinsert the drive and restart the EX4. The red light goes away but the system takes a while to reverify the raid and drive status. After some time, all returns to normal.

I have 2 spare drives (still in their anti-static bags) in case the drive still shows red.

Dust can collect inside the unit and can lead to overheating and other issues. As a preventive measure, I will shut down the unit, mark and remove all the drives (so I can put them back in (in order) and used compressed air to blow out all the dust inside the unit.