My rocket was blue, lolz!
That’s why. I can’t find any info on the blue drives’ endurance other than 5 year life with average usage. I can’t find the exact TBW of the peach drives (I know I saw it somewhere) but I know Sabrent has that somewhere and I think that it is a decently high number.
Did you get warranty replacement?
I have only used it over PCI-3 and inside an usb nvme enclosure. Maybe that will prolong it’s life.
I bought my Sabrent on Amazon. Shipped it back yesterday and expect to be credited for it soon.
I used a good heat sink for the Sabrent and have good, full-time airflow in the cabinet. It de-mounted itself in hours. Managed to remount and format it once, but it de-mounted again immediately. Just a bad drive.
My replacement, a Samsung 970 EVO Plus 2TB (1.81TB) lives in the same place, without a heat sink and sprints happily at an almost constant 54C. 
You serious? Goes down till 0? And still running?
Remember that the TBW are just warranty estimates. All of those are low. If a drive has 1700TBW for example, it can surely do more write cycles before it dies. In my case, I expect my measly 300 write cycles will do closer to 400 before the drives die. I will not take the chance. Once the drives hit 25% life, I will retire them from Chia and either get new ones or quit plotting (unless the more likely happens and I quit plotting because I run out of farming HDD space 1st).
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I expect at least double the TBW in all honesty. But I haven’t done the research or have any experience with going over the TBW.
Official TBW specs are just to scare grannies and invalidate warranties. I have a bunch of EVO 860s that almost tripled expected TBW and they are still like 100% OK.
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Can you pull up the CrystalDiskInfo and post it? Would be great to show proof of endurance here for others to go off of.
Sorry, no CrystalDiskInfo as I’m in Linux command line. That plotting system is already dismantled but I have one random unit of those just here and this is the smartctl output. This unit has 300TB spec and 840TB actually written, has been 9 months working 24x7 and is now living a well-deserved retirement in more comfortable conditions.
SMART Attributes Data Structure revision number: 1
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always - 0
9 Power_On_Hours 0x0032 098 098 000 Old_age Always - 6291
12 Power_Cycle_Count 0x0032 099 099 000 Old_age Always - 69
177 Wear_Leveling_Count 0x0013 001 001 000 Pre-fail Always - 1831
179 Used_Rsvd_Blk_Cnt_Tot 0x0013 100 100 010 Pre-fail Always - 0
181 Program_Fail_Cnt_Total 0x0032 100 100 010 Old_age Always - 0
182 Erase_Fail_Count_Total 0x0032 100 100 010 Old_age Always - 0
183 Runtime_Bad_Block 0x0013 100 100 010 Pre-fail Always - 0
187 Uncorrectable_Error_Cnt 0x0032 100 100 000 Old_age Always - 0
190 Airflow_Temperature_Cel 0x0032 069 038 000 Old_age Always - 31
195 ECC_Error_Rate 0x001a 200 200 000 Old_age Always - 0
199 CRC_Error_Count 0x003e 100 100 000 Old_age Always - 0
235 POR_Recovery_Count 0x0012 099 099 000 Old_age Always - 12
241 Total_LBAs_Written 0x0032 099 099 000 Old_age Always - 1802653421512My calculations using the converter below shows that it has written 922.96 TB. Impressive. To be clear, is that the EVO 860 SSD(2.5"), mSATA or M.2(NVME)? What size drive?
https://dannyda.com/2020/09/06/how-to-convert-smart-attribute-241-total_lbas_written-to-mb-gb-tb-pb/
They are the regular 2.5 inch 500GB SATA units, this is the disk info section:
=== START OF INFORMATION SECTION ===
Model Family: Samsung based SSDs
Device Model: Samsung SSD 860 EVO 500GB
Serial Number: S4XBNJ0N247635E
LU WWN Device Id: 5 002345 e30255893
Firmware Version: RVT04B6Q
User Capacity: 500.107.862.016 bytes [500 GB]
Sector Size: 512 bytes logical/physical
Rotation Rate: Solid State Device
Form Factor: 2.5 inches
Device is: In smartctl database [for details use: -P show]
ATA Version is: ACS-4 T13/BSR INCITS 529 revision 5
SATA Version is: SATA 3.2, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Mon Jun 7 20:13:57 2021 CEST
SMART support is: Available - device has SMART capability.
SMART support is: EnabledIn my experience, an NVMe will always die sooner than a SATA SSD, if they are otherwise identical. I was not surprised when it was revealed that it was the 980 EVO 500GB SATA.
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Some official info about the TBW degradiation of the PNY CS3030 series: https://www.tomshardware.com/news/pny-admits-reducing-ssd-write-endurance-chia-coin-boom
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This is probably because the NVME speeds are significantly higher than the SATA 3 drive can reach, so TBW equal, you kill the NVME many times faster. Makes sense.
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“sooner” is sorta loose …
I do not think TBW is affected by activity rate unless you are over heating your NVMe. (Except, of course, that you are writing more, lolz!)
Say your TBW for each drive is 100TBW, and you do 1TBW each day on the SATA SSD, and 2TBW on the NVME SSD (because NVME is faster).
You’d hit the TBW max spec twice as fast on the NVME in the example. 50 days vs. 100 days. So I think sooner is accurate, making the assumptions I did above.
And if you are mining Chia you are going 24/7 so I think it’s a pretty good example.
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If that is what you were referring to then of course you are correct.
Earlier we were mainly trying to start gathering data on how far past rated/warranted TBW peeps were seeing on their SSDs and NVMEs. The fact that farmers are quickly using up TBW on both is a given.
Yes, there’s more historical data of people running experiments to write on SSDs until they die and the life expectancy for name brand drives is quite good:
Are you telling me my Fattydove Racing SSD isn’t a name brand?
In all seriousness, simply staying away from QLC and reading the spec sheet on 64k write and TBW endurance is a pretty good guide for how well an SSD will do endurance wise.
That 840 is an absolute beast.
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