Opened 9 years ago

Closed 9 years ago

#148 closed enhancement (fixed)

2TB of unreadable sectors o 750GB disk

Reported by: johnjore Owned by: Christian Franke
Priority: minor Milestone: Release 5.41
Component: smartd Version: 5.38
Keywords: Cc:

Description

For unknown reasons, I've got around 2TB (assuming 512 bytes per sector) of unreadable sectors:

smartd[5904]: Device: /dev/twa0 [3ware_disk_29], 4294967295 Currently unreadable (pending) sectors
smartd[5904]: Device: /dev/twa0 [3ware_disk_29], 4294967295 Offline uncorrectable sectors

The disk is a 750GB ST3750640A with firmware version 3.AAE. The RAID controller has not reported any issues with this disk. There are multiple disks of this model and firmware revision attached. This is the only abnormal one. As smartmontools is reporting this as an issue, upstream monitoring systems are being triggered. Can a way to supress this specific number of bad sectors, or condition (2TB on a 750GB disk) be created?

Nor does disk appear to have an issue:

START OF READ SMART DATA SECTION

SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime?(hours) LBA_of_first_error
# 1 Extended offline Completed without error 00% 8040 -
# 2 Extended offline Interrupted (host reset) 30% 8027 -
# 3 Extended offline Completed without error 00% 7904 -
# 4 Extended offline Completed without error 00% 7881 -
# 5 Extended offline Completed without error 00% 7744 -
# 6 Extended offline Completed without error 00% 7597 -
# 7 Extended offline Completed without error 00% 7576 -
# 8 Extended offline Completed without error 00% 7523 -
# 9 Extended offline Completed without error 00% 7500 -
#10 Extended offline Completed without error 00% 7376 -
#11 Extended offline Completed without error 00% 7353 -
#12 Extended offline Completed without error 00% 7204 -
#13 Extended offline Completed without error 00% 7057 -
#14 Extended offline Completed without error 00% 6889 -
#15 Extended offline Completed without error 00% 6764 -
#16 Extended offline Completed without error 00% 6596 -
#17 Extended offline Completed without error 00% 6449 -
#18 Extended offline Completed without error 00% 6303 -
#19 Extended offline Completed without error 00% 6155 -
#20 Extended offline Completed without error 00% 6008 -
#21 Extended offline Completed without error 00% 5863 -

Regards,
John Jore

Change History (4)

comment:1 Changed 9 years ago by Christian Franke

4294967295 = 0xffffffff = (unsigned)(-1)

Does smartctl also report this raw value for attributes 197 and 198 of this disk?

comment:2 Changed 9 years ago by johnjore

Yes. Assuming this is what you're looking for?

ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
197 Current_Pending_Sector  0x0012   001   001   000    Old_age   Always       -       4294967295
198 Offline_Uncorrectable   0x0010   001   001   000    Old_age   Offline      -       4294967295

JJ

comment:3 Changed 9 years ago by Christian Franke

Component: allsmartd
Milestone: Release 5.41
Owner: changed from somebody to Christian Franke
Priority: majorminor
Status: newaccepted
Type: defectenhancement

Never seen this before, probably a firmware bug.

I will add the following enhancement: If smartd detects such large raw values from these attributes during startup/reload, an info message is logged and tracking of these attributes is disabled.

comment:4 Changed 9 years ago by Christian Franke

Resolution: fixed
Status: acceptedclosed
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