I have a 4TB hard disk on a NAS which I only use to store media files and play them from there using my local network. Its about 50% filled. It worked fine for for years but I recently noticed that some files were failing to play properly. By that I mean the file takes a long time to start playing and then gets stuck after a few seconds for a while, then continues playing for a few more seconds and gets stuck again etc. When I tried to copy the file to play it locally, the speed was about 300 to 800 KB/s over a wired network. Other files were copyed at 30-40MB/s, so no network failure.
I checked the drive using smartctl:
smartctl -H /dev/sdb
smartctl 7.3 2022-02-28 r5338 [aarch64-linux-6.1.0-rpi8-rpi-v8] (local build)
Copyright (C) 2002-22, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
And more detailed...
smartctl -A /dev/sdb
smartctl 7.3 2022-02-28 r5338 [aarch64-linux-6.1.0-rpi8-rpi-v8] (local build)
Copyright (C) 2002-22, Bruce Allen, Christian Franke, www.smartmontools.org
=== 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 198 198 051 Pre-fail Always - 55877
3 Spin_Up_Time 0x0027 181 175 021 Pre-fail Always - 7941
4 Start_Stop_Count 0x0032 079 079 000 Old_age Always - 21386
5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0
7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always - 0
9 Power_On_Hours 0x0032 058 058 000 Old_age Always - 31113
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 081 081 000 Old_age Always - 19183
192 Power-Off_Retract_Count 0x0032 182 182 000 Old_age Always - 14056
193 Load_Cycle_Count 0x0032 001 001 000 Old_age Always - 849904
194 Temperature_Celsius 0x0022 121 097 000 Old_age Always - 31
196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0
197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 1
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 132 132 000 Old_age Offline - 27533
And the values seems to be mostly fine?
Finaly I tried executing
fsck -p
on the drive and after several hours (18-20?) it reported no bad blocks and no failures at all. Im a bit at a loss at this point. Is the drive about to fail? Is there anything I should try before getting a new drive?
