HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software Troubleshooting Guide (EK-G80TS-SA. C01, March 2005)

Utilities and Exercisers
109HSG60 and HSG80 Array Controller and Array Controller Software Troubleshooting Guide
Device Port Performance data fields
VTDPY displays a Device Port Performance region (see Figure 19, lower left on
page 97) on the Device screen only. See Table 22 for a description of each field.
Rq/S Average I/O request rate for the device during the last update interval.
Requests can be up to 32 KB, and generated by host requests or cache
flush activity.
RdKB/S Average read data transfer rate to the device in KB/s during the
previous update interval.
WrKB/S Average write data transfer rate to the device in KB/s during the
previous update interval.
Que Maximum number of transfer requests waiting to be transferred to the
device during the last screen update interval.
Tg Maximum number of requests queued to the device during the last
screen update interval. If the device does not support tagged queuing,
the maximum value is 1.
BR Number of SCSI bus resets that occurred since
VTDPY was started.
ER Number of SCSI errors received. If the device is swapped or deleted,
then the value clears and resets to 0.
Table 21: VTDPY—Device Performance Data Fields Column Definitions (Continued)
Column Contents
Table 22: VTDPY—Device Port Performance Data Fields Column Definitions
Column Contents
Port SCSI device ports 1 through 6.
Rq/S Average I/O request rate for the device during the last update
interval. Requests can be up to 32 KB and generated by host requests
or cache flush activity.
RdKB/S Average read data transfer rate to the device in KB/s during the
previous update interval.
WrKB/S Average write data transfer rate to the device in KB/s during the
previous update interval.
CR Number of SCSI command resets that occurred since
VTDPY was
started.
BR Number of SCSI bus resets that occurred since
VTDPY was started.
TR Number of SCSI target resets that occurred since
VTDPY was started.