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28 gru 2023 · TRIM is a feature of the Advanced Technology Attachment (ATA) command set that enables the operating system to send a signal to the SSD when a file is deleted or moved, indicating which data blocks are no longer needed.
20 sie 2021 · Trim Support in Linux. Modern Linux distributions support the TRIM and DEALLOCATE commands for SATA SSDs and NVMe SSDs respectively, for simplicity we will refer to these two commands as Trim in this article. These commands are filesystem dependent and supported on the following file systems:
8 lip 2011 · It uses the hdparm command --trim-sector-ranges to TRIM all empty sectors on a partition, at least if it contains an ext3/4 filesystem. Not sure if it works with unformatted partitions, but you could always temporarily format it with ext4.
25 sie 2016 · The TRIM command propagates information about which data is no longer being used from the filesystem down to the SSD. This allows the device to perform its regular garbage collecting duties when idle, in order to ensure that there are zeroed pages ready to handle new writes.
25 sty 2017 · A TRIM command essentially allows your operating system to tell the drive which areas of data are no longer being used so that it come wipe them, speeding up the drive for future writes, and providing users of SSDs with a more optimum experience.
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 requests that get passed from the file system to the logical volume are automatically passed to the physical volume(s).
27 paź 2018 · Not a perfect solution, but as a stop-gap, you can manually trim on-demand via a command like sudo /sbin/fstrim -av See below before running this; you want to make sure you get the right command! systemctl cat fstrim.service will show you the fstrim service file.
