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November 17th, 2025 13:34
Suddenly VD0 disappeared from working R610 Esxi
I found this faulty system with the message :
"There are offline or missing virtual drives with preserved cache"
Entering Perc6/i configuration utility , Virtual Disk 0 is no longer present , instead Virtual Disk 1 is, both VD are Raid1
I mean the VD0 is disappeared at all , so not listed with missed disk.
Both VD0 disks are SSD and both green and yellow leds on both disks are blinking fast.
Removing each disk and connecting to a linux virtual machine via USB-SATA adapter they seems OK with no errors, all partition are mountable and data are there.
I cannnot do anything more than entering Perc config utility where I can't do nothing, exiting I can only reboot system falling back to error and enter utility again.
What should I do or check ?
Thanks.
DELL-Chris H
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November 17th, 2025 17:55
Oknet,
A couple things to confirm, do you have a backup of the data, as anything we do can risk the data so if you don't you may want to consider a 3rd party data recovery company. Second, if you have a backup, would you confirm if you see anything under the Foreign View tab in the controller BIOS?
If so, in the situation you're in you will want to Import the Foreign Configuration, the reason being is that it is a good rule of thumb that with Foreign Configurations you would Clear an Online VD, where you would Import an Offline VD.
If you go to the physical disks page, do any of the drives that were members of VD0 showing a YES under prediscted failure?
Let me know what you see, and if this helps.
Oknet
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November 18th, 2025 07:00
Chris, I suppose you're referring to " PERC 6/i Integrated BIOS Configuration Utility" tool.
So NO , there isn't any foreign device, honestly I don't even see the "foreign" tab in the upper side (configuration utility V1.22.02-0612)
And I don't see any physical disk other than the VD1 array ones.
I can reach the preserved cache management page, but I don't know if it is useful...
I checked cables and connectors, , If I remove disk 0 and 1 (VD0 related) the boot behavior is the same, no disks.
I'm thinking about a controller fault at this point.....
Any further suggestion ?
(edited)
Oknet
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November 18th, 2025 07:33
I have replaced disk0 with a new SSD , same behavior, no physical disks detected.
A curious thing, entering IDRAC and hot-inserting disks, they are seen as funcional for few minutes then go into faulty state.
(edited)
DELL-Erman O
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November 18th, 2025 10:02
Hi, firstly I recommend to don’t clear preserved cache unless disks are permanently inaccessible. don’t initialize or create new VD on those disks. You might try move a VD0 SSD to a known-good bay If stable, original bay/backplane is bad. Put a good disk in a “bad” bay If it faults, backplane/cable issue confirmed. You can ensure PERC, BIOS, iDRAC, backplane firmwares are up to date.