Score:0

Limit IO speed on ZFS pool

se flag

I want to limit the speed of a ZPOOL I have on a USB external device (facing overheating issues otherwise). I know I could just trash the device but trying to save the planet. It works fine at lower speeds but overheats when going max.

I set up a ZPOOL on the device because I saw in the Oracle ZFS documentation a guide how to set such limits: https://docs.oracle.com/en/operating-systems/solaris/oracle-solaris/11.4/manage-zfs/setting-i-o-bandwidth-limits.html

But trying in Ubuntu I get errors for any of those properties:

zfs get -r effectivewritelimit internal-usb
bad property list: invalid property 'effectivewritelimit'

I guess it is a different implementation (ZFS vs. OpenZFS) that doesn't have that feature? Is there any other way or is this drive doomed to the landfill?

Thanks!

in flag
The simplest way would be to limit the USB transfer speed, but it means taking a USB 3.x device and setting it to USB 2.0 (or from 2.0 to 1.1).
I sit in a Tesla and translated this thread with Ai:

mangohost

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.