Filesystem Reorganization

Filesystem Reorganization

EFS filesystems can become fragmented over time. When a filesystem is fragmented, blocks of free space are small and files have many extents (see the section "EFS Filesystems" in this chapter for information about extents). The fsr command reorganizes filesystems so that the layout of the extents is improved and free disk space is coalesced. This improves overall performance. By default, fsr is run automatically once a week from crontab. See the fsr(1M) reference page for additional information.