The original post: /r/datahoarder by /u/mccann73 on 2025-07-30 04:39:11+00:00.
Hi everyone, I recently purchased 2 Seagate 20TB SAS x20 manufacturer refurbished drives, or so they told me. As these drives were not for critical data, I was ok to use a refurbished drive and save some money, but was well aware of the issues around the Seagate’s having there smart info reset to show 0 hours usage.
They arrived today and I went through the FARM drives stats to confirm they were genuine refurbished, and I found some strange results, the FARM POH was ok, it looks like the seller might have run tests on these, maybe, as there was already an hour runtime. But then I saw the Workload Statistics that doesn’t seem to match up to the power on hours, even if it was a vigorous disk read/write scan was performed I not sure we would get these numbers in an hour? Also checking the date of manufacture didn’t make sense, manufactured mid last year (2024) and Seagate tells me warranty expired on the 11/Mar/2025?
Anyway I will try and run the Seagate tools to confirm results, just got to move a SAS controllers to a windows device, hope to hear you thoughts, would the workload stats be ok?
Seagate Field Access Reliability Metrics log (FARM) (SCSI Log page 0x3d, sub-page 0x3)
FARM Log Parameter 0: Log Header
FARM Log Version: 4.29
Pages Supported: 59
Log Size: 9864
Heads Supported: 20
Reason for Frame Capture: 0
FARM Log Parameter 1: Drive Information
Serial Number: xxxxxxxxxxxxxxxxxxxxxxx
World Wide Name: xxxxxxxxxxxxxxxxxxxxxxx
Firmware Rev: E005
Device Interface: SAS
Device Capacity in Sectors: 39063650303
Reason for Frame Capture: 4096
Logical Sector Size: 512
Device Buffer Size: 268435456
Number of heads: 20
Device form factor: 3.5 inches
Rotation Rate: 7200
Power on Hour: 1
Power Cycle count: 7
Hardware Reset count: 0
FARM Log Parameter 2: Workload Statistics
Total Number of Read Commands: 8207
Total Number of Write Commands: 383565
Total Number of Random Read Cmds: 533
Total Number of Random Write Cmds: 8233
Total Number of Other Commands: 73861
Logical Sectors Written: 282742016
Logical Sectors Read: 2097170
Number of Read commands from 0-3.125% of LBA space: 1891494
Number of Read commands from 3.125-25% of LBA space: 3920
Number of Read commands from 25-50% of LBA space: 4480
Number of Read commands from 50-100% of LBA space: 8971
Number of Write commands from 0-3.125% of LBA space: 596288
Number of Write commands from 3.125-25% of LBA space: 1792
Number of Write commands from 25-50% of LBA space: 2048
Number of Write commands from 50-100% of LBA space: 504256
Date of Assembled: 2435
FARM Log Parameter 3: Error Statistics
Unrecoverable Read Errors: 0
Unrecoverable Write Errors: 0
Number of Mechanical Start Failures: 0
FRU code if smart trip from most recent SMART Frame: 0
Invalid DWord Count Port A: 4
Invalid DWord Count Port B: 0
Disparity Error Count Port A: 4
Disparity Error Count Port B: 0
Loss Of DWord Sync Port A: 1
Loss Of DWord Sync Port B: 0
Phy Reset Problem Port A: 0
Phy Reset Problem Port B: 0
FARM Log Parameter 4: Environment Statistics
Current Temperature (Celsius): 281
Highest Temperature: 333
Lowest Temperature: 213
Specified Max Operating Temperature: 60
Specified Min Operating Temperature: 5
Current Relative Humidity: 0
Current Motor Power: 4824
12V Power Average: 0
12V Power Minimum: 0
12V Power Maximum: 0
5V Power Average: 0
5V Power Minimum: 0
5V Power Maximum: 0
FARM Log Parameter 5: Reliability Statistics
Helium Pressure Threshold Tripped: 0
FARM Log Parameter 6: Drive Information Continued
Depopulation Head Mask: 0
Product ID: ST20000NM002D
Drive Recording Type: CMR
Has Drive been Depopped: 0
Max Number of Available Sectors for Reassignment: 18204
Time to ready of the last power cycle (sec): 32303
Time drive is held in staggered spin (sec): 0
Last Servo Spin up Time (sec): 10243
FARM Log Parameter 7: Environment Information Continued
Current 12 volts: 12016
Minimum 12 volts: 11985
Maximum 12 volts: 12156
Current 5 volts: 4949
Minimum 5 volts: 4908
Maximum 5 volts: 4977
FARM Log "By Head" Information
MR Head Resistance 0: 424
MR Head Resistance 1: 277
MR Head Resistance 2: 456
MR Head Resistance 3: 415
MR Head Resistance 4: 425
MR Head Resistance 5: 403
MR Head Resistance 6: 422
MR Head Resistance 7: 425
MR Head Resistance 8: 393
MR Head Resistance 9: 410
MR Head Resistance 10: 446
MR Head Resistance 11: 422
MR Head Resistance 12: 464
MR Head Resistance 13: 371
MR Head Resistance 14: 474
MR Head Resistance 15: 344
MR Head Resistance 16: 396
MR Head Resistance 17: 343
MR Head Resistance 18: 464
MR Head Resistance 19: 459
Number of Reallocated Sectors 0: 0
Number of Reallocated Sectors 1: 0
Number of Reallocated Sectors 2: 0
Number of Reallocated Sectors 3: 0
Number of Reallocated Sectors 4: 0
Number of Reallocated Sectors 5: 0
Number of Reallocated Sectors 6: 0
Number of Reallocated Sectors 7: 0
Number of Reallocated Sectors 8: 0
Number of Reallocated Sectors 9: 0
Number of Reallocated Sectors 10: 0
Number of Reallocated Sectors 11: 0
Number of Reallocated Sectors 12: 0
Number of Reallocated Sectors 13: 0
Number of Reallocated Sectors 14: 0
Number of Reallocated Sectors 15: 0
Number of Reallocated Sectors 16: 0
Number of Reallocated Sectors 17: 0
Number of Reallocated Sectors 18: 0
Number of Reallocated Sectors 19: 0
Number of Reallocation Candidate Sectors 0: 0
Number of Reallocation Candidate Sectors 1: 0
Number of Reallocation Candidate Sectors 2: 0
Number of Reallocation Candidate Sectors 3: 0
Number of Reallocation Candidate Sectors 4: 0
Number of Reallocation Candidate Sectors 5: 0
Number of Reallocation Candidate Sectors 6: 0
Number of Reallocation Candidate Sectors 7: 0
Number of Reallocation Candidate Sectors 8: 0
Number of Reallocation Candidate Sectors 9: 0
Number of Reallocation Candidate Sectors 10: 0
Number of Reallocation Candidate Sectors 11: 0
Number of Reallocation Candidate Sectors 12: 0
Number of Reallocation Candidate Sectors 13: 0
Number of Reallocation Candidate Sectors 14: 0
Number of Reallocation Candidate Sectors 15: 0
Number of Reallocation Candidate Sectors 16: 0
Number of Reallocation Candidate Sectors 17: 0
Number of Reallocation Candidate Sectors 18: 0
Number of Reallocation Candidate Sectors 19: 0
Write Power On (hrs) 0: 0
Write Power On (hrs) 1: 0
Write Power On (hrs) 2: 0
Write Power On (hrs) 3: 0
Write Power On (hrs) 4: 0
Write Power On (hrs) 5: 0
Write Power On (hrs) 6: 0
Write Power On (hrs) 7: 0
Write Power On (hrs) 8: 0
Write Power On (hrs) 9: 0
Write Power On (hrs) 10: 0
Write Power On (hrs) 11: 0
Write Power On (hrs) 12: 0
Write Power On (hrs) 13: 0
Write Power On (hrs) 14: 0
Write Power On (hrs) 15: 0
Write Power On (hrs) 16: 0
Write Power On (hrs) 17: 0
Write Power On (hrs) 18: 0
Write Power On (hrs) 19: 0
Cum Lifetime Unrecoverable Read Repeating 0: 0
Cum Lifetime Unrecoverable Read Repeating 1: 0
Cum Lifetime Unrecoverable Read Repeating 2: 0
Cum Lifetime Unrecoverable Read Repeating 3: 0
Cum Lifetime Unrecoverable Read Repeating 4: 0
Cum Lifetime Unrecoverable Read Repeating 5: 0
Cum Lifetime Unrecoverable Read Repeating 6: 0
Cum Lifetime Unrecoverable Read Repeating 7: 0
Cum Lifetime Unrecoverable Read Repeating 8: 0
Cum Lifetime Unrecoverable Read Repeating 9: 0
Cum Lifetime Unrecoverable Read Repeating 10: 0
Cum Lifetime Unrecoverable Read Repeating 11: 0
Cum Lifetime Unrecoverable Read Repeating 12: 0
Cum Lifetime Unrecoverable Read Repeating 13: 0
Cum Lifetime Unrecoverable Read Repeating 14: 0
Cum Lifetime Unrecoverable Read Repeating 15: 0
Cum Lifetime Unrecoverable Read Repeating 16: 0
Cum Lifetime Unrecoverable Read Repeating 17: 0
Cum Lifetime Unrecoverable Read Repeating 18: 0
Cum Lifetime Unrecoverable Read Repeating 19: 0
Cum Lifetime Unrecoverable Read Unique 0: 0
Cum Lifetime Unrecoverable Read Unique 1: 0
Cum Lifetime Unrecoverable Read Unique 2: 0
Cum Lifetime Unrecoverable Read Unique 3: 0
Cum Lifetime Unrecoverable Read Unique 4: 0
Cum Lifetime Unrecoverable Read Unique 5: 0
Cum Lifetime Unrecoverable Read Unique 6: 0
Cum Lifetime Unrecoverable Read Unique 7: 0
Cum Lifetime Unrecoverable Read Unique 8: 0
Cum Lifetime Unrecoverable Read Unique 9: 0
Cum Lifetime Unrecoverable Read Unique 10: 0
Cum Lifetime Unrecoverable Read Unique 11: 0
Cum Lifetime Unrecoverable Read Unique 12: 0
Cum Lifetime Unrecoverable Read Unique 13: 0
Cum Lifetime Unrecoverable Read Unique 14: 0
Cum Lifetime Unrecoverable Read Unique 15: 0
Cum Lifetime Unrecoverable Read Unique 16: 0
Cum Lifetime Unrecoverable Read Unique 17: 0
Cum Lifetime Unrecoverable Read Unique 18: 0
Cum Lifetime Unrecoverable Read Unique 19: 0
Second MR Head Resistance 0: 365
Second MR Head Resistance 1: 361
Second MR Head Resistance 2: 500
Second MR Head Resistance 3: 395
Second MR Head Resistance 4: 589
Second MR Head Resistance 5: 356
Second MR Head Resistance 6: 395
Second MR Head Resistance 7: 394
Second MR Head Resistance 8: 404
Second MR Head Resistance 9: 524
Second MR Head Resistance 10: 420
Second MR Head Resistance 11: 392
Second MR Head Resistance 12: 420
Second MR Head Resistance 13: 458
Second MR Head Resistance 14: 453
Second MR Head Resistance 15: 363
Second MR Head Resistance 16: 385
Second MR Head Resistance 17: 327
Second MR Head Resistance 18: 371
Second MR Hea...
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