Managing the memfs filesystem
The memfs filesystem type is a high-performance, volatile
memory filesystem type.
The nature of this filesystem type is such that users are able to create
directories and files, but,
because the filesystem is only in memory, when it is unmounted,
the directories and files go away.
When mounting memfs, you can use the -o option
to specify file-system-specific options.
These file-system-specific options are:
swapmax sets the maximum amount of dedicated memory for the file
system, in bytes.
global_swapmax sets the maximum amount of shared memory for
all memfs filesystems, in bytes.
rootmode specifies the mode of the root directory of mounted
rootmode allows system administrators to
set a sticky bit for /tmp
The swapmax and global_swapmax options cannot
be used together on the same command line.
for complete information.
Mounting an memfs filesystem creates an instantiation of the
Therefore, there is no corresponding mkfs command required
for the memfs filesystem type.
By default, a emfs filesystem is provided for
each of /tmp and /var/tmp
on initial system installation, and they share the
global_swapmax memory pool.
The default value of global_swapmax at system installation
is set to the maximum integer value supported by the system.
© 2007 The SCO Group, Inc. All rights reserved.
SCO OpenServer Release 6.0.0 -- 05 June 2007