xfs_rtcp
copies a file to the realtime partition on an XFS filesystem.
If there is more than one
source
and
target,
the final argument (the
target)
must be a directory which already exists.
OPTIONS
-e extsize
Sets the extent size of the destination realtime file.
-p
Use if the size of the source file is not an even multiple of
the block size of the destination filesystem. When
-p
is specified
xfs_rtcp
will pad the destination file to a size which is an even multiple
of the filesystem block size.
This is necessary since the realtime file is created using
direct I/O and the minimum I/O is the filesystem block size.
Currently, realtime partitions are not supported under the Linux
version of XFS, and use of a realtime partition
WILL CAUSE CORRUPTION
on the data partition. As such, this command is made available for curious
DEVELOPERS ONLY
at this point in time.