** Description changed: [Impact] - * Ubuntu enables automatic TRIM / DISCARD on all filesystems that + * Ubuntu enables automatic TRIM / DISCARD on all filesystems that support it, such that on SSD-like storage devices the performance over time is improved. ZFS, as setup by ubiquity, did not used to enable autotrim option. But it should have it enabled. [Test Case] - * Complete install using zfs - * Check that the zfs pools have autotrim feature enabled + 1. Complete install using zfs + 2. Reboot and login + 3. Check that the zfs pools have autotrim feature enabled with the following command: + $ zpool get autotrim + + Both pools must have the autotrim property set to 'on'. + NAME PROPERTY VALUE SOURCE + bpool autotrim on local + rpool autotrim on local + [Regression Potential] - * When autotrim is in progress, i/o performance may be observed as + * When autotrim is in progress, i/o performance may be observed as stalling. However, periodic trim outweighs the benefits. Advanced operators may choose to disable autotrim, and execute it manually during regularly scheduled maintenance windows. [Other Info] - - * Shipped in groovy already + + * Shipped in groovy already
** Description changed: [Impact] * Ubuntu enables automatic TRIM / DISCARD on all filesystems that support it, such that on SSD-like storage devices the performance over time is improved. ZFS, as setup by ubiquity, did not used to enable autotrim option. But it should have it enabled. [Test Case] 1. Complete install using zfs - 2. Reboot and login - 3. Check that the zfs pools have autotrim feature enabled with the following command: - $ zpool get autotrim + 2. Reboot and login + 3. Check that the zfs pools have autotrim feature enabled with the following command: + # zpool get autotrim Both pools must have the autotrim property set to 'on'. NAME PROPERTY VALUE SOURCE bpool autotrim on local rpool autotrim on local + + You can also check the status of trimming with: + # zpool status -t rpool + pool: rpool + state: ONLINE + scan: none requested + config: + + NAME STATE READ WRITE CKSUM + rpool ONLINE 0 0 0 + nvme0n1p4 ONLINE 0 0 0 (100% trimmed, completed at mer. 03 juin 2020 07:50:22) [Regression Potential] * When autotrim is in progress, i/o performance may be observed as stalling. However, periodic trim outweighs the benefits. Advanced operators may choose to disable autotrim, and execute it manually during regularly scheduled maintenance windows. [Other Info] * Shipped in groovy already -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1883686 Title: zfs should enable autotrim To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1883686/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
