DiscardTRIMLinux

此流程测试 TRIM 和 DISCARD 命令是否能正确地从VDO 测试卷上已删除的文件中释放块。它演示了，丢弃告知VDO 不再使用空间。 先决条件. 挂载新创建的VDO 测试卷。

2023年10月8日 — The aim of this article is to enable discard/trim operational for block devices connected via the systems USB bus. Contents. 1 Overview. 1.1 ...

2021年3月24日 — Simply run the sudo fstrim -a command which will trim all unused blocks on all mounted filesystems. It is safe to run the command on a running ...

2021年9月9日 — You can check the device's maximum discard sizes, e.g. $ cat /sys/block/X/queue/discard_max_hw_bytes. (replacing X as appropriate).

2011年7月8日 — The simplest way to do this is to simply create an ext4 filesystem on the partition with a reasonably recent version of mkfs.ext4 . The first ...

2021年5月16日 — I'm on Arch Linux 5.12.3. findmnt tells me this about the partitions and their mount options: TARGET SOURCE FSTYPE OPTIONS / /dev/sda3 ext4 rw ...

2024年3月31日 — If you want to trim your entire SSD at once, e.g. for a new install or if you want to sell the drive, you can use the blkdiscard command. LVM.

Trim or discard is an operation on a storage device based on flash technology (SSD, NVMe or similar), a thin-provisioned device or could be emulated on top of ...

2020年10月28日 — Great Linux resources · 1) The SSD is at [32:2] on HBA a0 , and we'll create a single RAID 0 drive from it: · 2) The new logical drive pops up as ...