xfsdiscardoption

This command discards all unused blocks in a file system that match the user's criteria. Online discard operations are specified at mount time, either with the ...

Types of block discard operations · You can run discard operations using different methods: · All types are supported by the XFS and ext4 file systems and by VDO.

23.1. Types of block discard operations ... You can run discard operations using different methods: ... All types are supported by the XFS and ext4 file systems.

2012年8月31日 — FITRIM is a mounted filesystem feature to discard (or trim) blocks which are not in use by the filesystem. This is useful for solid-state ...

XFS does discard asynchronously, while ext4 and Btrfs do it synchronously. That means ... discard mount option but use fstrim every now and then at quiet times.

2014年11月23日 — Hello. I am running the Fedora 21 beta on an SSD with /boot and / on XFS. I want to add the discard mount option to both of them, ...

2023年12月14日 — xfs(8) § OPTIONS for details). The XFS v5 on-disk format is considered stable for production workloads starting in Linux Kernel 3.15. Note: ...

2023年3月14日 — This sends UNMAP to the storage array so it knows to clear the blocks that were previously used by deleted files. In the setup documentation for ...

2020年5月29日 — XFS and discard doe not work through fstab because the /-fs get “remounted” during boot which is not supported for discard option. So you ...

Note: It is currently recommended that you use the fstrim application to discard unused blocks rather than the discard mount option because the performance ...