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Dell MD3000 Degraded Physical Disk Channel error

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Dell MD3000 Degraded Physical Disk Channel error

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Hello;

I have a Dell PowerVault MD3000, and it is showing a degraded physical disk channel error and individual physical disk - degraded path error.

The recovery guru suggests contacting a technical support representative to fix the error and do not try to fix it myself. 

Any thoughts on how to proceed with fixing my issue? I am afraid to lose connection to my DAS and lose my data.

Below is the status of my physical disk channel:

DRIVE CHANNELS----------------------------

SUMMARY


CHANNEL PORT STATUS
1 Expansion Degraded
2 Expansion Optimal

DETAILS

DRIVE CHANNEL 1

Port: Expansion
Status: Degraded
Reason: Error threshold exceeded
Max. Rate: 3 Gbps
Current Rate: 3 Gbps
Rate Control: Switched
DRIVE COUNTS

Total # of attached physical disks: 15
Connected to: 0
Attached physical disks: 15
Expansion enclosure: 0 (15 physical disks)


CUMULATIVE ERROR COUNTS

RAID Controller Module 0

Baseline time set: 5/19/17 2:16:08 PM
Sample period (hh:mm:ss): 23:32:14
RAID Controller Module detected errors: 67
Physical Disk detected errors: 33
Timeout errors: 0
Total I/O count: 1174837

RAID Controller Module 1

Baseline time set: 5/19/17 2:16:08 PM
Sample period (hh:mm:ss): 23:13:33
RAID Controller Module detected errors: 38
Physical Disk detected errors: 8
Timeout errors: 0
Total I/O count: 52110

CAPTURED INTERVAL ERROR COUNTS

RAID Controller Module 1

Start time: {0} 5/19/17 2:16:08 PM
End time: {0} 5/19/17 2:18:50 PM
RAID Controller Module detected errors: 0
Physical Disk detected errors: 0
Timeout errors: 0
Total I/O count: 0

DRIVE CHANNEL 2

Port: Expansion
Status: Optimal
Max. Rate: 3 Gbps
Current Rate: 3 Gbps
Rate Control: Switched
DRIVE COUNTS

Total # of attached physical disks: 15
Connected to: 1
Attached physical disks: 15
Expansion enclosure: 0 (15 physical disks)


CUMULATIVE ERROR COUNTS

RAID Controller Module 0

Baseline time set: 5/19/17 2:16:08 PM
Sample period (hh:mm:ss): 23:32:14
RAID Controller Module detected errors: 0
Physical Disk detected errors: 19
Timeout errors: 0
Total I/O count: 1203323

RAID Controller Module 1

Baseline time set: 5/19/17 2:16:08 PM
Sample period (hh:mm:ss): 23:13:33
RAID Controller Module detected errors: 0
Physical Disk detected errors: 9
Timeout errors: 0
Total I/O count: 267426

Your help is highly appreciable.

Regards;

All Replies
  • Hello elhammoud,

    When you get the Physical disk channel error what you want to do is to check to make sure all drives are online & present. Are there any expansion enclosures attached to your MD3000? Here are the commands that need to be run:

    smcli -n <storage-name> -p password -c "clear allPhysicalDiskChannels stats;"

    smcli -n <storage-name> -p password -c "set physicalDiskChannel [1] status=optimal;"

    smcli -n <storage-name> -p password -c "set physicalDiskChannel [2] status=optimal;"

    If after running the commands you are still getting the error then we will need to review a support bundle from your MD3000. Also looking at your Storage Array Profile log it is showing that your MD3000 firmware could be upgraded to 07.35.39.64.

    Please let us know if you have any other questions.

    DELL-Sam L
    Dell | Social Outreach Services - Enterprise
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