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8-4 Sun MediaCenter Server Administrator’s Guide • December 1997
Note in the verbose mfs df output, above, that the MFS block size (64k) is reported,
as well as the disk type, which can be either data or parity. Output with the -k
option is the same except that the Total, Used, and Avail data is displayed in
kilobytes rather than 64K blocks. The fact that space consumed is the about the same
on all disks is characteristic of the MFS, in which data is striped across all disks.
8.2.2 mfs diskusg
The mfs diskusg utility returns information on disk usage of an MPEG file, given
the size or duration, encoding rate, and encapsulation format that you supply. It has
the following syntax:
The parameters are described as follows:
-v
Specifies verbose mode, in which mfs diskusg displays information that would
be returned by the mfs dump utility, if a file of the specified parameters were in
the MFS.
-g
Returns an error status if there is no space for the specified content. This
parameter is intended for use in shell scripts where you need to determine if there
is enough space to store a particular content. If you specify both the -v and -g
parameters at the same time, only the -g option will take effect.
size
Size of the MPEG file, in bytes.
duration
Duration of the MPEG file, in seconds.
rate
Encoding rate of the MPEG file, in bits per second.
format=format
Format of the encoded source file. One of:
MPEGTS
MPEG Transport Stream packet format. The packetization of this encapsulation
consists of two 188-byte packets.
mfs diskusg [-v] [-g]{size=size | duration=seconds} rate=rate format=format