Hi Everyone, I have had my server built for several years without any issues, i previously had used some second-hand drives and had to replace a drive on a few occasions. However, about 2 years ago, I rebuilt the server, using 7 16 TB WD Red Pro drives in a Z2 configuration. On Saturday, I logged o…

chksum errors are often the result of cabling issues - they are not drive issues. Given that these are occurring on all devices in the pool then you (I suspect) need to look upstream. One question that you have conspicuously failed to answer is how the HDD’s are connected to the motherboard. My ini…

Another thing that irritates me: [image] Ronan_McKernan: All drives are powered via Molex to SATA You PSU has 6 SATA connectors - why would you power all drives with Molex to sata [lose all your data] adapters? But of course it would be more important to know, how those HDDs are connected d…

It is 100% possible that the PSU is ageing, as I have had the unit for several years. If that is what needs to be replaced, that would be understandable. I have run the SMART tests and pasted the output below; hopefully, this is formatted correctly. I wasn’t able to include all of the drives due to…

=== START OF INFORMATION SECTION === Device Model: WDC WD161KFGX-68AFPN0 Serial Number: 2PH9ZJMT LU WWN Device Id: 5 000cca 2c1d2a179 Firmware Version: 83.00A83 User Capacity: 16,000,900,661,248 bytes [16.0 TB] Sector Sizes: 512 bytes logical, 4096 bytes physical Rotation Rate: 72…

[image] NugentS: One question that you have conspicuously failed to answer is how the HDD’s are connected to the motherboard. My initial google fu show 6 sata interfaces. [image] Ronan_McKernan: All 7 drives are connected directly to the motherboard, no SATA card. Took a look at the sp…

At a glance all the drives have crc errors logged & an nearly identical amount of zfs errors. Smart tests imply that drives themselves aren’t the fault. Something caused a blip on all them, psu, ram, maybe the chipset on the motherboard, etc. The good news is you can in theory use this as an excus…

As said, some of the drives are really hot, so there’s a cooling issue. That should not be the cause of this issue, but this is something to improve. You haven’t been running periodic SMART tests, but, as expected the drives look fine. All drives being equally affected would tend to exclude a cabl…

This evening, I got the chance to get memtest running. Within 10 minutes, I already seem to have a selection of errors. I have left it running and will check again in the morning; however, I am assuming we have found the root of the issue. Bad RAM? Just to clarify, while I had the server off, I che…

[image] Ronan_McKernan: Within 10 minutes, I already seem to have a selection of errors. I have left it running and will check again in the morning …no need to leave it running - it has already failed. RMA if available/time relevant, or buy new ram. Optional is testing each dim to see if any …

Hi Everyone, So as expected, there were many errors resulting from the memtest. I am simply going to replace the RAM. Are there any suggestions on good RAM, or something to look out for? I am using a consumer board, so I just have to stick with DDR4, but anything else to look out for? Finally, to…

Every Drive in my pool has degraded!

TrueNAS General

Fleshmauler September 18, 2025, 7:18pm 18

@winnielinnie strikes again!

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Every Drive in my pool has degraded!

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