mounts the filesystem as a temporary data area (such as /tmp).
This improves system performance because the system updates
the information less frequently. (The potential for
loss of data is increased as a result.)
Checkpointing
transitions the filesystem to a clean (consistent)
state at regular intervals. This reduces the probability that
your filesystem will need cleaning if the system is halted
unexpectedly.
Logging
performs ``intent logging'', recording filesystem transactions
to a log file before they are
committed to disk. This increases data availability by reducing the
checking and repairing the filesystem to a few seconds.
This time is independent of filesystem size.
These options apply to HTFS filesystems only:
Maximum number of file versions
determines maximum number of undeletable (versioned) files
allowed on the filesystem. A value of 0 disables versioning.
Minimum time before a file is versioned
sets minimum time before a file is versioned. If set to 0, a file is
always versioned (as long as Maxiumum number of file versions
is greater than 0). If set to a value greater than 0, the file is versioned
after it has existed for that number of seconds.