Blockdiscard

2022年2月19日 — DISCARD request ... b) perform an unmap operation. ... SCSI supports the WRITE SAME commands to write a LBA sized buffer to many LBAs.

The block discard operation communicates to the underlying storage which filesystem blocks are no longer in use by the mounted filesystem. Block discard ...

The block discard operation communicates to the underlying storage which filesystem blocks are no longer in use by the mounted filesystem. Block discard ...

2020年8月21日 — WRITE_SAME · If the UNMAP bit is set WRITE SAME ask the device to unmap the blocks covered · Buffer must be all zeros for the UNMAP bit to work.

Improving Block Discard Support throughout the Linux Storage. Stack. Christoph ... → Must only reuse or discard blocks once actually committed. Page 13. The ...

Since discard requests go through the queue with all other block requests, they can be manipulated by the I/O scheduler code. In particular, they can be merged, ...

blkdiscard is used to discard device sectors. This is useful for solid-state drivers (SSDs) and thinly-provisioned storage. Unlike fstrim(8), this command is ...

blkdiscard is used to discard device sectors. This is useful for solid-state drivers (SSDs) and thinly-provisioned storage. Unlike fstrim(8), this command is ...

2021年5月7日 — root@xxxx:~# fstrim --help Usage: fstrim [options] <mount point> Discard unused blocks on a mounted filesystem. Options: -a, --all trim all ...