Hi,
i'm running a 4 disc mdadm RAID5
sda (3TB)
sdb (3TB)
sdc (3TB)
sdd (3TB)
One drive (sdb) shows a red dot in OMV SMART settings (Popup message: Drive has few bad blocks).
Here a log of Smart-Attributes:
root@Server:~# sudo smartctl -A /dev/sdb
=== START OF READ SMART DATA SECTION ===
SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x002f 199 199 051 Pre-fail Always - 8791
3 Spin_Up_Time 0x0027 175 174 021 Pre-fail Always - 6208
4 Start_Stop_Count 0x0032 097 097 000 Old_age Always - 3283
5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 3
7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always - 0
9 Power_On_Hours 0x0032 091 091 000 Old_age Always - 7197
10 Spin_Retry_Count 0x0032 100 100 000 Old_age Always - 0
11 Calibration_Retry_Count 0x0032 100 100 000 Old_age Always - 0
12 Power_Cycle_Count 0x0032 099 099 000 Old_age Always - 1263
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 66
193 Load_Cycle_Count 0x0032 199 199 000 Old_age Always - 3216
194 Temperature_Celsius 0x0022 117 105 000 Old_age Always - 33
196 Reallocated_Event_Count 0x0032 197 197 000 Old_age Always - 3
197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 142
198 Offline_Uncorrectable 0x0030 200 200 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x0008 200 187 000 Old_age Offline - 0
Alles anzeigen
Not so good:
Raw_Read_Error_Rate: 8791 (other discs show 0)
Reallocated_Sector_Ct: 3 (other discs show 0)
Current_Pending_Sector: 142 (other discs show 0)
Should i be concerned? The Raid-Status is clean, all is working fine, except the strange Smart-Status log.
sdb has few bad sectors which are pending. I tried to get the bad block numbers to reallocate these, but Smart health-test PASSED!
root@Server:~# smartctl -H /dev/sdb
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
Did selftests and they completed without errors and do not show bad blocks in LBA_of_first_error! Why? There are pending sectors!
root@Server:~# smartctl -l selftest /dev/sdb
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Short offline Completed without error 00% 7195 -
# 2 Extended offline Completed without error 00% 7180 -
# 3 Short offline Completed without error 00% 7172 -
tune2fs, fdisk need the exact block numbers to reallocate/overwrite pending blocks, but there are no block faulty blocks under LBA_of_first_error
How can i fix the pending sectors without loosing raid5 or data-loss?
Please help
pappl