10.1 Generic filesystem options

10.1.1 relatime and noatime

Filesystems usually feature access, creation, and modification time tracking for their folders and files. These times are updated by the operating system, and later written to disk, increasing disk access.

Modification and creation times are no big deal, but access times can carry a strong performance penalty, given read-only access is access. These access time updates can, over time, lead to missed performance on the table, and shorter lifespans for drives.

In order to mitigate this, Ironclad allows filesystems to be mounted relatime and noatime. relatime will make it so access times are only updated if the modify time is greater, making it so only one access post-modification is tracked. noatime will not update access times at all.

These flags can be applied on mount. mount/umount.