sar.1m (2010 09)

s
sar(1M) sar(1M)
is printed. Each line contains the following data:
device Logical name of the device and its corresponding instance. Devices are
categorized into the following device types:
disk3 − SCSI and NIO FL disks
sdisk − SCSI disks.
%busy Portion of time device was busy servicing a request.
avque Average number of requests outstanding for the device.
r+w/s Number of data transfers per second (read and writes) from and to the dev-
ice.
r/s Number of reads per second from the device. This information is available
only when used with the -R option.
w/s Number of writes per second to the device. This information is available only
when used with the -R option.
blks/s Number of bytes transferred (in 512-byte units) from and to the device.
avwait Average time (in milliseconds) that transfer requests waited idly on queue for
the device.
avserv Average time (in milliseconds) to service each transfer request (includes seek,
rotational latency, and data transfer times) for the device.
Refer to the WARNINGS section for information about legacy LUN.
-f Uses file as the data source for sar. Default is the current daily data file
/var/adm/sa/sadd.
-H Report activity for each HBA device. One line is printed for each HBA device that had
activity during the last interval. If no devices were active, a blank line is printed. Each line
contains the following data:
ctlr Logical name of the HBA device and its corresponding instance.
%util Portion of time device was busy servicing a request.
t-put Number of bytes transferred (in MBs) from and to the device.
IO/s Number of data transfers per second (read and writes) from and to the dev-
ice.
r/s Number of reads per second from the device.
w/s Number of writes per second to the device.
read Number of bytes read (in MBs) from the device.
write Number of bytes written (in MBs) to the device.
avque Average number of requests outstanding for the device.
avwait Average time (in milliseconds) that transfer requests waited idly on queue for
the device.
avserv Average time (in milliseconds) to service each transfer request for the device.
-L Report activity for each active lunpath. One line is printed for each lunpath that had activity
during the last interval. If no lunpath were active, a blank line is printed.
NOTE: The lunpaths are not displayed in any specific order and it is not guaranteed that the
current order will be maintained in future releases.
Each line contains the following data:
lunpath symbolic name of the lunpath of the form: diskm_lunpathn, where m and n
are the instance numbers of LUN and lunpath respectively. These instance
numbers are displayed by ioscan using option -N, for the LUN and lunpath
entries. For more information on LUN and lunpath hardware path, refer to
intro (7).
2 Hewlett-Packard Company − 2 − HP-UX 11i Version 3: September 2010