getting a mail about smartctl not able to read a raided drive's sector, but array is healthy in raid controller settings

J

JurgenMK

Active Member
Mar 22, 2020
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so, to sketch my setup, a raid 5 array which is controlled by a H700 has one drive of which smartd says it has a bad sector, but when I scan the array in the controller's settings, it shows healthy. The array only contains backups. What notification should I believe?

Code: 
   host name:  pve2
   DNS domain: local

The following warning/error was logged by the smartd daemon:

Device: /dev/bus/0 [megaraid_disk_00] [SAT], 1 Currently unreadable (pending) sectors

Device info:
WDC WD20EFRX-68EUZN0, S/N:WD-WCC4M*******, WWN:5-0014ee-21*******, FW:82.00A82, 2.00 TB

any help would be greatly appreciated.

kind Regards,
Jurgen
 
SMART-Status und "healthy" are two different metrics. You may have to manually look at the errors counter with megacli (or whatever version you've installed) and check for non-zero error counters. We had many pre-disk-failures with "other errors" that took a couple of months to "evolve" into media errors.
 
LnxBil said:
SMART-Status und "healthy" are two different metrics. You may have to manually look at the errors counter with megacli (or whatever version you've installed) and check for non-zero error counters. We had many pre-disk-failures with "other errors" that took a couple of months to "evolve" into media errors.
Click to expand...
Thanks for your reply, I checked with megacli64 and none of the drives have any Media Errors or Other Errors: either the raid controller is not picking the error up or it is intermittend and fixed itself somehow?
Code: 
root@pve2:~/bin# ./megacli -PDList -a0

Adapter #0

Enclosure Device ID: N/A
Slot Number: 0
Drive's position: DiskGroup: 0, Span: 0, Arm: 0
Enclosure position: N/A
Device Id: 0
WWN: 50014ee210fb2ed0
Sequence Number: 2
Media Error Count: 0
Other Error Count: 0
Predictive Failure Count: 0
Last Predictive Failure Event Seq Number: 0
PD Type: SATA

Raw Size: 1.819 TB [0xe8e088b0 Sectors]
Non Coerced Size: 1.818 TB [0xe8d088b0 Sectors]
Coerced Size: 1.818 TB [0xe8d00000 Sectors]
Sector Size:  0
Firmware state: Online, Spun Up
Device Firmware Level: 0A82
Shield Counter: 0
Successful diagnostics completion on :  N/A
SAS Address(0): 0x4433221107000000
Connected Port Number: 3(path0)
Inquiry Data:      WD20EFRX-68EUZN0                    82.00A82
FDE Capable: Not Capable
FDE Enable: Disable
Secured: Unsecured
Locked: Unlocked
Needs EKM Attention: No
Foreign State: None
Device Speed: 6.0Gb/s
Link Speed: 6.0Gb/s
Media Type: Hard Disk Device
Drive:  Not Certified
Drive Temperature : N/A
PI Eligibility:  No
Drive is formatted for PI information:  No
PI: No PI
Drive's NCQ setting : N/A
Port-0 :
Port status: Active
Port's Linkspeed: 6.0Gb/s
Drive has flagged a S.M.A.R.T alert : No



Enclosure Device ID: N/A
Slot Number: 1
Drive's position: DiskGroup: 0, Span: 0, Arm: 2
Enclosure position: N/A
Device Id: 1
WWN: 5000c500b23223ee
Sequence Number: 2
Media Error Count: 0
Other Error Count: 0
Predictive Failure Count: 0
Last Predictive Failure Event Seq Number: 0
PD Type: SATA

Raw Size: 1.819 TB [0xe8e088b0 Sectors]
Non Coerced Size: 1.818 TB [0xe8d088b0 Sectors]
Coerced Size: 1.818 TB [0xe8d00000 Sectors]
Sector Size:  0
Firmware state: Online, Spun Up
Device Firmware Level: CC26
Shield Counter: 0
Successful diagnostics completion on :  N/A
SAS Address(0): 0x4433221106000000
Connected Port Number: 1(path0)
Inquiry Data:             ST2000DM006-2DM164                      CC26
FDE Capable: Not Capable
FDE Enable: Disable
Secured: Unsecured
Locked: Unlocked
Needs EKM Attention: No
Foreign State: None
Device Speed: 6.0Gb/s
Link Speed: 6.0Gb/s
Media Type: Hard Disk Device
Drive:  Not Certified
Drive Temperature : N/A
PI Eligibility:  No
Drive is formatted for PI information:  No
PI: No PI
Drive's NCQ setting : N/A
Port-0 :
Port status: Active
Port's Linkspeed: 6.0Gb/s
Drive has flagged a S.M.A.R.T alert : No



Enclosure Device ID: N/A
Slot Number: 2
Drive's position: DiskGroup: 0, Span: 0, Arm: 1
Enclosure position: N/A
Device Id: 2
WWN: 5000c500b23323ce
Sequence Number: 2
Media Error Count: 0
Other Error Count: 0
Predictive Failure Count: 0
Last Predictive Failure Event Seq Number: 0
PD Type: SATA

Raw Size: 1.819 TB [0xe8e088b0 Sectors]
Non Coerced Size: 1.818 TB [0xe8d088b0 Sectors]
Coerced Size: 1.818 TB [0xe8d00000 Sectors]
Sector Size:  0
Firmware state: Online, Spun Up
Device Firmware Level: CC26
Shield Counter: 0
Successful diagnostics completion on :  N/A
SAS Address(0): 0x4433221105000000
Connected Port Number: 2(path0)
Inquiry Data:             ST2000DM006-2DM164                      CC26
FDE Capable: Not Capable
FDE Enable: Disable
Secured: Unsecured
Locked: Unlocked
Needs EKM Attention: No
Foreign State: None
Device Speed: 6.0Gb/s
Link Speed: 6.0Gb/s
Media Type: Hard Disk Device
Drive:  Not Certified
Drive Temperature : N/A
PI Eligibility:  No
Drive is formatted for PI information:  No
PI: No PI
Drive's NCQ setting : N/A
Port-0 :
Port status: Active
Port's Linkspeed: 6.0Gb/s
Drive has flagged a S.M.A.R.T alert : No



Enclosure Device ID: N/A
Slot Number: 3
Drive's position: DiskGroup: 0, Span: 0, Arm: 3
Enclosure position: N/A
Device Id: 3
WWN: 5000c500a5b22bce
Sequence Number: 2
Media Error Count: 0
Other Error Count: 0
Predictive Failure Count: 0
Last Predictive Failure Event Seq Number: 0
PD Type: SATA

Raw Size: 1.819 TB [0xe8e088b0 Sectors]
Non Coerced Size: 1.818 TB [0xe8d088b0 Sectors]
Coerced Size: 1.818 TB [0xe8d00000 Sectors]
Sector Size:  0
Firmware state: Online, Spun Up
Device Firmware Level: CC26
Shield Counter: 0
Successful diagnostics completion on :  N/A
SAS Address(0): 0x4433221104000000
Connected Port Number: 0(path0)
Inquiry Data:             ST2000DM006-2DM164                      CC26
FDE Capable: Not Capable
FDE Enable: Disable
Secured: Unsecured
Locked: Unlocked
Needs EKM Attention: No
Foreign State: None
Device Speed: 6.0Gb/s
Link Speed: 6.0Gb/s
Media Type: Hard Disk Device
Drive:  Not Certified
Drive Temperature : N/A
PI Eligibility:  No
Drive is formatted for PI information:  No
PI: No PI
Drive's NCQ setting : N/A
Port-0 :
Port status: Active
Port's Linkspeed: 6.0Gb/s
Drive has flagged a S.M.A.R.T alert : No




Exit Code: 0x00
 
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