User`s guide

Device SCSI Port Performance
Port Rq/S RdKB/S WrKB/S CR BR TR
1000000
21193 0000
3 48 341 0000
4 48 340 0000
5 58 93 375000
6000000
Description
This subdisplay shows the accumulated I/O performance values and bus statistics
for the SCSI device ports. The subdisplay for a controller that has six SCSI
device ports in shown.
The Port column indicates the number of the SCSI device port.
Rq/S—This column shows the average I/O request rate for the port during
the last update interval. These requests are up to 8 kilobytes long and are
either generated by host requests or cache flush activity.
RdKB/S—This column shows the average data transfer rate from all devices
on the SCSI bus in kilobytes during the previous screen update interval.
WrKB/S—This column shows the average data transfer rate to all devices on
the SCSI bus in kilobytes during the previous screen update interval.
CR—This column indicates the number of SCSI command resets that
occurred since VTDPY was started.
BR—This column indicates the number of SCSI bus resets that occurred
since VTDPY was started.
TR—This column indicates the number of SCSI target resets that occurred
since VTDPY was started.
7–52 Diagnostics and Utilities