[mythtv-users] Playback drops with news crawl
Roland Ernst
rcrernst at gmail.com
Sat Feb 15 15:44:32 UTC 2025
On Sat, Feb 15, 2025 at 4:08 PM Barry Martin <barry3martin at gmail.com> wrote:
>
> Hi Will!
>
> It sounds like a disk drive error if the file copy fails at that point.
> If the file copy fails there is not much chance that MythTV could read
> past that point. I recommend replacing the drive. Copy as much as you
> can from the old drive to the new drive.
>
> Easy to check by installing smartmontools and running:
> sudo smartctl -a *dev*<device> (e.g. /dev/sda)
>
> It might be obvious that it's dying, or if not, I'm sure somebody here
> could provide some insight if you paste the input here.
>
>
> I'm guessing with all the 'old-age' and 'pre-fails' in the output and the
> drive is around ten years old Peter's suggestion to replace it is probably
> a good one. ...When putting together this new Backend I sort of grabbed
> the first about-the-right-size drive I saw in the box and didn't even look
> at the date - oops!
>
>
> Anyway, below are the test results. I'm thinking your comments would be a
> great way for me and the rest of the readers to learn. I'm also thinking
> it might be a good idea for me to create a script to look at the smartctl
> results to monitor the hard drives in the various computers around here and
> so catch any problems early. So the sub-question is which items should I
> be monitoring?
>
> <start of test results>
>
> barry at BE5:~$ sudo smartctl -a /dev/sdb
> smartctl 7.4 2023-08-01 r5530 [x86_64-linux-6.8.0-51-generic] (local build)
> Copyright (C) 2002-23, Bruce Allen, Christian Franke,
> www.smartmontools.org
>
> === START OF INFORMATION SECTION ===
> Model Family: Western Digital Re
> Device Model: WDC WD4000FYYZ-05UL1B0
> Serial Number: WD- <BJM: Deleted>
> LU WWN Device Id: 5 0014ee 25f977da3
> Firmware Version: 00.0NS05
> User Capacity: 4,000,787,030,016 bytes [4.00 TB]
> Sector Size: 512 bytes logical/physical
> Rotation Rate: 7200 rpm
> Device is: In smartctl database 7.3/5528
> ATA Version is: ATA8-ACS (minor revision not indicated)
> SATA Version is: SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
> Local Time is: Sat Feb 15 08:25:13 2025 CST
> SMART support is: Available - device has SMART capability.
> SMART support is: Enabled
>
> === START OF READ SMART DATA SECTION ===
> SMART overall-health self-assessment test result: PASSED
>
> General SMART Values:
> Offline data collection status: (0x00) Offline data collection activity
> was never started.
> Auto Offline Data Collection: Disabled.
> Self-test execution status: ( 0) The previous self-test routine
> completed
> without error or no self-test has ever
> been run.
> Total time to complete Offline
> data collection: (48480) seconds.
> Offline data collection
> capabilities: (0x7b) SMART execute Offline immediate.
> Auto Offline data collection on/off support.
> Suspend Offline collection upon new
> command.
> Offline surface scan supported.
> Self-test supported.
> Conveyance Self-test supported.
> Selective Self-test supported.
> SMART capabilities: (0x0003) Saves SMART data before entering
> power-saving mode.
> Supports SMART auto save timer.
> Error logging capability: (0x01) Error logging supported.
> General Purpose Logging supported.
> Short self-test routine
> recommended polling time: ( 2) minutes.
> Extended self-test routine
> recommended polling time: ( 523) minutes.
> Conveyance self-test routine
> recommended polling time: ( 5) minutes.
> SCT capabilities: (0x70bd) SCT Status supported.
> SCT Error Recovery Control supported.
> SCT Feature Control supported.
> SCT Data Table supported.
>
> 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 200 182 051 Pre-fail
> Always - 15
> 3 Spin_Up_Time 0x0027 227 227 021 Pre-fail
> Always - 7633
> 4 Start_Stop_Count 0x0032 100 100 000 Old_age
> Always - 90
> 5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail
> Always - 0
> 7 Seek_Error_Rate 0x002e 100 253 000 Old_age
> Always - 0
> 9 Power_On_Hours 0x0032 065 065 000 Old_age
> Always - 26111
> 10 Spin_Retry_Count 0x0032 100 253 000 Old_age
> Always - 0
> 11 Calibration_Retry_Count 0x0032 100 253 000 Old_age
> Always - 0
> 12 Power_Cycle_Count 0x0032 100 100 000 Old_age
> Always - 90
> 16 Total_LBAs_Read 0x0022 003 197 000 Old_age
> Always - 189260942824
> 183 Runtime_Bad_Block 0x0032 100 100 000 Old_age
> Always - 0
> 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age
> Always - 50
> 193 Load_Cycle_Count 0x0032 200 200 000 Old_age
> Always - 39
> 194 Temperature_Celsius 0x0022 112 093 000 Old_age
> Always - 40
> 196 Reallocated_Event_Count 0x0032 200 200 000 Old_age
> Always - 0
> 197 Current_Pending_Sector 0x0032 200 200 000 Old_age
> Always - 8
> 198 Offline_Uncorrectable 0x0030 100 253 000 Old_age
> Offline - 0
> 199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age
> Always - 0
> 200 Multi_Zone_Error_Rate 0x0008 100 253 000 Old_age
> Offline - 0
>
> SMART Error Log Version: 1
> No Errors Logged
>
> SMART Self-test log structure revision number 1
> Num Test_Description Status Remaining
> LifeTime(hours) LBA_of_first_error
> # 1 Short offline Aborted by host 10%
> 20981 -
>
> SMART Selective self-test log data structure revision number 1
> SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
> 1 0 0 Not_testing
> 2 0 0 Not_testing
> 3 0 0 Not_testing
> 4 0 0 Not_testing
> 5 0 0 Not_testing
> Selective self-test flags (0x0):
> After scanning selected spans, do NOT read-scan remainder of disk.
> If Selective self-test is pending on power-up, resume after 0 minute delay.
>
> The above only provides legacy SMART information - try 'smartctl -x' for
> more
>
> <end of test results>
>
> The replacement drive has been ordered: for $10 more I got a 6 TB over 4
> TB WD6004FZBX: 256 MB cache (seems more is better), 7200 RPM, (seems less
> of a bottleneck possibility that the 5400 RPM versions), 5 year warranty
> (seems if the manufacturer stands behind their product for a longer time),
> Transfer Rate up to 267 Mbps (faster is better, though is it reading or
> writing....). SSDs and NVMe's are faster but I'm not a fan of when they
> fail they take everything. OTOH I do back up my hard drives.......
>
>
> Thanks!
>
> Barry
>
The above information confuses me:
26111 of power on hours are roughly 3 years, but the hint on
the end of your test results says
The above only provides legacy SMART information - try 'smartctl -x' for
more
I always use the "-x" option.
Could you please post that output with the "-x" option ?
I have 24 TBytes of multimedia data, almost no backup, and thought
the WD drives work at least 5 years, until I replace them.
I am getting nervous....
Thanks,
Roland
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