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ZIOMON_MGR(8) System Manager's Manual ZIOMON_MGR(8)

NAME

ziorep_traffic - I/O traffic report for FCP adapters.

SYNOPSIS

ziorep_traffic [-V] [-v] [-h] [-b <begin>] [-e <end>] [-i <time>] [-s] [-c <chpid>] [-u <id>] [-t <num>] [-p <port>] [-l <lun>] [-d <fdev> ] [-m <mdev> ] [-x] [-D] [-C a|u|p|m|A] <filename>

DESCRIPTION

ziorep_traffic Prints a report from the specified data.

OPTIONS

-h or --help
Print help information, then exit.

-v or --version
Print version information, then exit.

-V or --verbose
Be verbose.

-b or --begin
Limit the timeframe to consider to data beginning with the specified date.
Dates must be specified in the following format: YYYY-MM-DD HH:MM[:SS].
E.g. 2008-03-21 09:08 is 9:08 on March 21, 2008.

-e or --end
Limit the timeframe to consider to data ending with the specified date.
Dates must be specified in the following format: YYYY-MM-DD HH:MM[:SS].
E.g. 2008-03-21 09:08 is 9:08 on March 21, 2008.

-i or --interval
Specify an aggregation interval. The interval is given in seconds, and must be a multiple of the interval as found in the source data.

-s or --summary
Print a summary of the data, then exit.

-c or --chpid
Consider the specified physical adapter. Adapters must be specified in hex.
If multiple adapters should be specified, specify each one separately.
E.g. '-c 7a'.

-u or --bus-id
Consider the specified bus-IDs. bus-IDs must be specified in hex.
If multiple bus-IDs should be specified, specify each one separately.
E.g. '-u 0.0.4c78'.

-p or --port
Consider the specified target port. Target ports must be specified in hex.
If multiple ports should be specified, specify each one separately.
E.g. '-p 0x500507630040710b'.

-l or --lun
Consider the specified lun. luns must be specified in hex.
If multiple luns should be specified, specify each one separately.
E.g. '-l 0x4021402d00000000'.

-d or --device
Consider the specified device.
If multiple devices should be specified, specify each one separately.
E.g. '-d sda'.

-m or --mdev
Consider the specified multipath device.
If multiple devices should be specified, specify each one separately.
E.g. '-m 36005076303ffc1040002120'.

-x or --export-csv
Write data to file(s) in CSV format. Output filenames will be based on the data filename.

-t or --topline
Repeat topline after specified number of frames.
0 for no repeat (default).

-D or --detailed
Print histograms.

-C or --collapse
Collapse the data by the specified criterion:
a collapse by physical adapter.
u collapse by bus-ID.
p collapse by target port.
m collapse by multipath device.
A collapse all data into a single dataset.

OUTPUT

Here is a list of the columns and their descriptions. Timestamps of the frames printed depict the ending of the respective timeframe.

I/O rt MB/s
I/O rate of the respective device in megabytes per second, considering individual requests and their total processing time, including channel latency, etc.
min and max give the minimum and maximum respectively.

thrp in MB/s
Throughput of the respective device in megabytes per second, considering times of activity only.
avg and stdev give the average utilization as well as its standard deviation respectively.

I/O requests
Statistics on the numbers and kinds of I/O requests seen.
#reqs is the total number of requests,
rd is the number of read requests,
wrt is the number of write requests and
bidi is the number of bi-directional requests.

I/O subs. lat. in us
Latency of the I/O subsystem in microseconds. This is the time needed to execute a request, from the I/O stack down to the hardware and back up again. It excludes channel and fabric latencies.
min, max, avg and stdev give the minimum, maximum and average latency as well as its standard deviation respectively.

channel lat. in us
Channel latency in microseconds. This is the time needed to execute a request on the FCP adapter. It excludes I/O subsystem and fabric latencies.
min, max, avg and stdev give the minimum, maximum and average latency as well as its standard deviation respectively.

fabric lat. in us
Fabric latency in microseconds. This is the time needed for the requests within the fabric, from the FCP adapter to the target device and back again. It excludes I/O subsystem and channel latencies.
min, max, avg and stdev give the minimum, maximum and average latency as well as its standard deviation respectively.

EXAMPLES

Example
Print a traffic report for all devices. Only data after 8:57 April 5, 2008 should be considered. Data should be aggregated to 60 second intervals.

ziorep_traffic -i 60 -b "2008-04-05 08:57" sample.log

Example
Print a detailed traffic report for all devices connected to target port 0x500507630313c562. Data should be aggregated over the whole data range.

ziorep_traffic -i 0 -p 0x500507630313c562 sample.log

Example
Print a detailed traffic report for all devices that are either connected to target port 0x500507630313c562 or part of multipath device 36005076303ffc5620000000000001314. The result should be collapsed on the bus-ID level.

ziorep_traffic -C u -p 0x500507630313c562 -m 36005076303ffc5620000000000001314 sample.log

SEE ALSO

ziorep_config(8), ziorep_utilization(8)
Jul 2008 s390-tools