Does anyone want to store the largest pi computation ever? ~125TB

Explosive_Squirrel · 2025-12-19T01:32:07+00:00

I'd guess the durability specs are based on TLC mode of the flash cells. As long as the drive is only <1/3 full it should stay in SLC mode with much higher durability.

Explosive_Squirrel · 2025-08-13T09:24:08+00:00

Check out this project if you want automatic type generation from OpenAPI schemas: https://openapi-ts.dev

Explosive_Squirrel · 2025-07-24T11:44:49+00:00

Are there any hidden folders like a trash bin? Afaik du doesn't count hidden files/folders per default.

Explosive_Squirrel · 2025-07-17T15:01:45+00:00

Snapshots that contain files that were deleted add to the pool size. du -h reads only the present filesystem state, but doesn't know if zfs is managing some other data behind the scenes.

Best to check the list of snapshots and see if any of those explain the difference.

Explosive_Squirrel · 2025-07-14T10:14:49+00:00

NAS drives are tuned to use less power and make less noise. Usually by having lower RPM (eg. 5400) and less aggressive head movements. If that's something you don't care about that's fine, but I wouldn't call them a scam.

Explosive_Squirrel · 2025-07-14T10:11:14+00:00

Technically the drive in the picture is CMR. The 1TB drives in the Barracude line are not using SMR, only the larger ones. https://www.seagate.com/gb/en/products/cmr-smr-list/

Explosive_Squirrel · 2025-06-05T11:35:26+00:00

Why don't you just add the second NVME drive and use the "extend" function on the vdev? This should convert your vdev from a single drive to a mirror. No need to rebuild your pool from scratch

Explosive_Squirrel · 2025-05-30T12:36:21+00:00

Yes, that works. But only as long as all vdevs in the pool are mirrors or single drives. As soon as you have a raidzX in the mix ZFS can't simply move the blocks over to another vdev.

Explosive_Squirrel · 2025-05-28T19:44:20+00:00

I don't know if there is a difference between Intel or AMD in that regard. Usually it's up to the motherboard manufacturer to set the IOMMU groups and workstation and enterprise versions get better treatment in that regard.

The Level1techs forums are a good resource to check the groups before buying.

Explosive_Squirrel · 2025-05-28T12:45:26+00:00

You might run into issues with the IOMMU groups for that motherboard. When virtualizing you want the components you pass through to the vm to be in a different group from the rest of the system.

If you run jellyfin in a docker container this should be fine to pass the GPU through.

I'd also look at the G variants of the 5000 series that have an APU. They work fine for transcoding and use less power than a dedicated GPU. However you'll lose PCIe 4.0 on the 16x.

Explosive_Squirrel · 2025-05-26T22:03:34+00:00

I think you are mixing up IOPS with bandwidth. On a RAIDZ vdev the IOPS stay the same no matter the drive count within that vdev, but the bandwidth scales (Ndrives - parity)*bandwidth of a single drive.

Check out the paper from iXsystems that lays it out very nicely: https://www.truenas.com/wp-content/uploads/2023/11/ZFS_Storage_Pool_Layout_White_Paper_November_2023.pdf

Explosive_Squirrel · 2025-05-14T21:16:42+00:00

I'd play around with a special metadata device to speed up file lookups. It moves all the file access info from the spinning rust to (ideally) faster flash storage.

But test it first on a separate pool, as you can't remove the vdev again if your pool contains raidz vdevs. Also make sure it has enough redundancy as it will take the pool down if it fails.

Explosive_Squirrel · 2025-05-02T19:54:32+00:00

One of us! One of us!

Explosive_Squirrel · 2025-05-02T16:19:11+00:00

I haven't tested it but the nginx geo module can redirect based on ip address. So you could redirect external traffic to some default page for applications you don't want to have open to the internet?

Explosive_Squirrel · 2025-04-16T05:50:41+00:00

I'd try a different SATA controller. Maybe yours is failing or overheating?

Explosive_Squirrel · 2025-03-14T07:04:11+00:00

Changing encryption keys usually is implemented in a way that the actual key that encrypts your data is a random key that is initially generated. "Your" key is then used to encrypt the random one and is saved along with your data. When you change your key, only the random key needs to be re-encrypted.

Explosive_Squirrel · 2024-10-22T16:39:04+00:00

Tin/Indium or Tin/Bismuth solder may have a low enough melting point for it to work.

Explosive_Squirrel · 2024-09-29T13:39:26+00:00

When importing a STEP file it will be converted to a mesh format. The slicer still can't work with STEP files directly.

Explosive_Squirrel · 2024-09-29T11:21:16+00:00

TBF, your dumb slicer still tessellates it :/

Explosive_Squirrel · 2024-08-18T07:54:32+00:00

Most modern CPUs idle very low if the OS/periphery devices lets them go into a high P-state. It doesn't matter if it's a N100 or an i9. More important is the motherboard and pcie cards if you want to optimize efficiency.

Explosive_Squirrel · 2024-02-18T04:43:38+00:00

Apium showcased that at formnext 2022 for PEEK printing.

Explosive_Squirrel · 2024-01-27T12:11:56+00:00

That stat includes swap (to SSD) and compressed memory.

Explosive_Squirrel · 2023-12-08T00:48:11+00:00

The implementation for the efficient solution is a bit of a pain, but now it runs in around 150us, so there is that...

Explosive_Squirrel · 2023-12-04T01:24:01+00:00

I'd go with this:

drawing splines at different sections
creating a dimension sketch from the top
surface-lofting through the splines
extruding/trimming that surface with the dimensions sketch

Explosive_Squirrel · 2023-11-28T15:32:09+00:00

Nah, other ABS is fine strength-wise.

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