Hi all:
I'm looking at the smartctl background scan log for the following drive:
I see that several blocks have been reassigned and the grown defect list is still at zero so I'm not too concerned about the drive.
I would like to know when these blocks were reassigned since I recently had a hard UPS fail which crashed the system and I thought the rewrites might be related to that event.
So the "when" column implies that there are over 58,000 hours on the drive. That seems reasonable since that's about 6 years and 7 months of run time and the drive is just over 8 years old.
The "accumulated power on time" is reading just over 387 hours. I acquired this drive in 2017 (no idea how many hours were on it at that time) but it has run continuously since then so I should have at least 20,000 hours on it.
Am I misunderstanding "accumulated power on time"? Is there something that can reset it?
This is not unique to this drive either. I'm seeing the same thing in the entire set of 4 drives.
I feel like I'm missing something here and am seeking understanding.
Thanks,
Kevin
I'm looking at the smartctl background scan log for the following drive:
Code:
# smartctl -a /dev/da2 smartctl 7.0 2018-12-30 r4883 [FreeBSD 11.3-RELEASE-p6 amd64] (local build) Copyright (C) 2002-18, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Vendor: HITACHI Product: HUS723020ALS640 Revision: A222 Compliance: SPC-4 User Capacity: 2,000,398,934,016 bytes [2.00 TB] Logical block size: 512 bytes Rotation Rate: 7200 rpm Form Factor: 3.5 inches Logical Unit id: 0x5000cca01c461904 Serial number: YGH7K2TD Device type: disk Transport protocol: SAS (SPL-3) Local Time is: Thu Jun 18 18:45:55 2020 EDT SMART support is: Available - device has SMART capability. SMART support is: Enabled Temperature Warning: Enabled === START OF READ SMART DATA SECTION === SMART Health Status: OK Current Drive Temperature: 49 C Drive Trip Temperature: 85 C Manufactured in week 17 of year 2012 Specified cycle count over device lifetime: 50000 Accumulated start-stop cycles: 115 Specified load-unload count over device lifetime: 600000 Accumulated load-unload cycles: 69492 Elements in grown defect list: 0 Vendor (Seagate Cache) information Blocks sent to initiator = 22625316904108032 Error counter log: Errors Corrected by Total Correction Gigabytes Total ECC rereads/ errors algorithm processed uncorrected fast | delayed rewrites corrected invocations [10^9 bytes] errors read: 0 719404 0 719404 19254638 104694.571 0 write: 0 7588678 0 7588678 3095786 34694.437 0 verify: 0 0 0 0 615073 0.000 0 Non-medium error count: 1 No Self-tests have been logged # smartctl -l background /dev/da2 Password: smartctl 7.0 2018-12-30 r4883 [FreeBSD 11.3-RELEASE-p6 amd64] (local build) Copyright (C) 2002-18, Bruce Allen, Christian Franke, www.smartmontools.org === START OF READ SMART DATA SECTION === Background scan results log Status: waiting until BMS interval timer expires Accumulated power on time, hours:minutes 387:14 [23234 minutes] Number of background scans performed: 382, scan progress: 0.00% Number of background medium scans performed: 382 # when lba(hex) [sk,asc,ascq] reassign_status 1 58579:53 00000000a8447805 [3,11,0] Recovered via rewrite in-place 2 58579:53 00000000a8447804 [3,11,0] Recovered via rewrite in-place 3 58579:53 00000000a8447803 [3,11,0] Recovered via rewrite in-place 4 58579:53 00000000a8447802 [3,11,0] Recovered via rewrite in-place 5 58579:53 00000000a8447801 [3,11,0] Recovered via rewrite in-place 6 58579:53 00000000a8447800 [3,11,0] Recovered via rewrite in-place
I see that several blocks have been reassigned and the grown defect list is still at zero so I'm not too concerned about the drive.
I would like to know when these blocks were reassigned since I recently had a hard UPS fail which crashed the system and I thought the rewrites might be related to that event.
So the "when" column implies that there are over 58,000 hours on the drive. That seems reasonable since that's about 6 years and 7 months of run time and the drive is just over 8 years old.
The "accumulated power on time" is reading just over 387 hours. I acquired this drive in 2017 (no idea how many hours were on it at that time) but it has run continuously since then so I should have at least 20,000 hours on it.
Am I misunderstanding "accumulated power on time"? Is there something that can reset it?
This is not unique to this drive either. I'm seeing the same thing in the entire set of 4 drives.
I feel like I'm missing something here and am seeking understanding.
Thanks,
Kevin