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2 Posts
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730
July 30th, 2021 06:00
EQL PS6100E RAID-6 disk assignment
Hi,
Is there any way to find disk assignment to LUN 0 and LUN1 within RAID-6?
I need to find drives marked as "?"
# raidtool
Driver Status: *Admin Intervention Requested*
RAID LUN 0 Faulted Beyond Recovery.
11 Drives (?,13,?,?,9,?,?,4,11,?,?)
RAID 6 (64KB sectPerSU)
Capacity 17,617,013,637,120 bytes
RAID LUN 1 Faulted Beyond Recovery.
12 Drives (?,?,16,19,8,?,?,?,?,20,?,6)
No Events found!
DELL-Josh Cr
Moderator
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9.3K Posts
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July 30th, 2021 10:00
Hi,
Do you have a backup of the data? If you don’t and the data is important it would be better to call phone support. How many drives are in the chassis? It looks like it is the full LUN for both that it is reporting as faulted. Have you rebooted to see if the drives come back up? Let us know if you need anything else.
szle
2 Posts
0
July 30th, 2021 11:00
Hi,
there is 24 disks in total. I am trying to get the RAID to rebuild, by external company, but the missing part is how disks are assigned to LUN's. Is it possible to get this information?
DELL-Josh Cr
Moderator
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9.3K Posts
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July 30th, 2021 12:00
You might be able to get it from a diagnostic report https://dell.to/3zUqW9G
dwilliam62
4 Operator
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1.5K Posts
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July 30th, 2021 16:00
Hello,
The diagnostic report doesn't have any customer viewable information. It's encoded and must be decoded by support staff.
There are so many drives that are showing missing that a rebuild will not be possible. Only two drives per LUN are survivable in RAID6 Each drive has metadata which indicates which LUN it belongs to. Additionally the LUNs are striped in RAID0, they are not concatenated. All data is split across the two LUNs. Recovering one LUN alone will not yield any usable data.
So just knowing which drive belongs to which LUN isn't critical information.
Regards,
Don