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Apparent issues with ZFS on RPi 5 (lemmy.world)

submitted 3 days ago* (last edited 3 days ago) by ramenshaman@lemmy.world to c/selfhosted@lemmy.world

27 comments fedilink hide all child comments

I tried to find a more applicable community to post this to but didn't find anything.

I recently set up a NAS/server on a Raspberry Pi 5 running Raspberry Pi OS (see my last post) and since then I've got everything installed into a 3D printed enclosure and I've got RAID set up (ZFS RAIDz1). Prior to setting up RAID, I could transfer files to/from the NAS at around 200MB/s, but now that RAID is seemingly working things are transferring at around 28-30 MB/s. I did a couple searches and found someone suggesting to disable sync ($ sudo zfs set sync=disabled zfspool). I tried that and it doesn't seem to have had any effect. Any suggestions are welcome but keep in mind that I barely know what I'm doing.

Edit: When I look at the SATA hat, the LEDs indicate that the drives are being written to for less than half a second and then there's a break of about 4 seconds where there's no writing going on.

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[–] kata1yst@sh.itjust.works 1 points 3 days ago (3 children)

What controller?

[–] Faceman2K23@discuss.tchncs.de 1 points 1 day ago

the radxa penta is a JMB585 connected with pcie gen3x1.

They do overheat though, might need a heatsink and some ZFS tuning.

[–] 3dcadmin@lemmy.relayeasy.com 1 points 2 days ago

The controller is the built in Pi controller in the SoC - the hat just sorts out the logic to route the 5 sata ports

[–] ramenshaman@lemmy.world 1 points 3 days ago

I guess the Radxa Penta SATA hat would be considered the controller.