NAME¶
ziomon - Collect data for performance analysis of fcp adapters.
SYNOPSIS¶
ziomon [-h] [-V] [-v] [-f] [-l <sz_limit>] [-i n] -d n -o
<logfile> <device>...
DESCRIPTION¶
ziomon starts and controls various utilities to collect data for
performance analysis for a specified duration. Note that it is possible to
specify multipath devices also. If multipath devices are specified, the
respective regular devices used by the multipath devices will be monitored.
OPTIONS¶
- -h or --help
- Print help information, then exit.
- -v or --version
- Print version information, then exit.
- -V or --verbose
- Be verbose.
- -f or --force
- Force start of data collection even though there is insufficient free disk
space.
- -l or --size-limit
- Upper limit of the output files. May include one of the suffixes M
(megabytes), G (gigabytes) or T (terabytes) to specify a unit measure.
Unit measure defaults to megabytes. Note that this is only a tentative
value which might be slightly exceeded.
- -i or --interval-length
- Specify the time to elapse between recording data in seconds. Must be an
even number. Defaults to 60 seconds.
- -d or --duration
- Overall monitoring duration in minutes. Must be a multiple of the interval
length.
- -o or --outfile
- Basename for output files.
- device
- specifies a device to collect respective data for.
EXAMPLES¶
Collect data for devices /dev/sda, /dev/sdg, /dev/sdp and the multipath device
/dev/mapper/36005076303ffc104000000000000212b for 5 minutes. Data should be
sampled every 20 seconds. The collected data size should not exceed 50 MB. The
output files should base their names on 'trace_data':
ziomon -i 20 -d 5 -l 50M -o trace_data
/dev/mapper/36005076303ffc104000000000000212b /dev/sda /dev/sdg /dev/sdp
