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PowerVault 3220i controller replaced but continue with Cache Backup Device Failed
Hi,
The recovery guru recommends replacing the RAID Controller Module because one of the controllers failed. I bought one from a company and installed it in the PowerVault 3220i but the Recovery Guru has the error Cache Backup Device Failed. I verified on the EMS The only difference is on Cache Backup Device is:
Module 0
| Cache Backup Device | |||
| Status: |
|
||
| Type: | SD flash physical disk | ||
| Location: | RAID Controller Module 0, Connector SD 1 | ||
| Capacity: | 7,639 MB | ||
| Product ID: | Not Available | ||
| Part number: | Not Available | ||
| Serial number: | a00c5e50 | ||
| Revision level: | 10 | ||
| Manufacturer: | Lexar | ||
| Date of manufacture: | May 1, 2011 |
Module 1
| Cache Backup Device | |||
| Status: |
|
||
| Type: | SD flash physical disk | ||
| Location: | RAID Controller Module 1, Connector SD 1 | ||
| Capacity: | 7,580 MB | ||
| Product ID: | SU08G | ||
| Part number: | Not Available | ||
| Serial number: | 1d121607 | ||
| Revision level: | 80 | ||
| Manufacturer: | SanDisk | ||
| Date of manufacture: | November 1, 2012 |
Does the Capacity need to be the same? or bring me the steps to solve this problem, please.
Thanks
Arn
Arn Torr
4 Posts
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November 9th, 2022 11:00
Hi @Joey C,
Here is my solution:
After reading a lot of options and recommendations that don't work for me I decide to reset both RAID Controllers, first the one that was replaced, RAID Controller Module in Enclosure 0, Slot 1, and after verifying that everything works Ok did the same process on RAID Controller Module in Enclosure 0, Slot 0.
Here are the steps followed:
The yellow RAID Controller Module in Enclosure 0, Slot 1 (The one replaced)
Another option is:
Then I did the same procedure for the other RAID Controller (Enclosure 0, Slot 0)
The green RAID Controller Module in Enclosure 0, Slot 0
Another option is:
After this process went to Recovery Guru press Recheck and clears the message showing no failures
I hope this process helps other people.
DELL-Joey C
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November 3rd, 2022 00:00
Hi @Arn Torr,
From your output log, both are showing optimal status, have you tried rescanning in Recovery Guru? Which controller module was replaced? Do you have the newly replaced module DPN#? From the error "Cache Backup Device Failed" is pointing the issue to the cache module in the controller module. There is a build in module inside the controller, which can be removed and reseat, but I do not have the guide reference for you to refer. That might be able to help resolve the issue.
Arn Torr
4 Posts
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November 8th, 2022 11:00
Hi Joey,
I don't fine a specific DPN but here is the complete information for the New RAID Controller Module.
RAID Controller Module in Enclosure 0, Slot 1
Base RAID Controller Module Properties
You can verify and let me know.
Thanks,
Arn Torr
DELL-Charles R
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November 8th, 2022 13:00
Hello Arn Torr,
This article may help.
MD32xx/MD32xxi - Cache Backup Device Failures
https://dell.to/3FYcpjC
Arn Torr
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November 8th, 2022 13:00
Hi Charles R
This is the message from link.
This article is permission based. Find another article.
Can you help me with the access?
Thank you,
Arn Torr
DELL-Joey C
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November 8th, 2022 23:00
Hi @Arn Torr,
The article might have been removed. I can't access it either.
The DPN# is located physically on the controller, a small white sticker.
About the error you saw, did you try rescan in Recovery Guru?
Have you tried the steps provided in Recovery Guru to resolve the issue?