•
Service time (
Svt_ms
)
•
Wait time (
Wtt_ms
)
•
Size of the I/O requests (
IOSz_KB
)
•
Number of rejected I/O requests (
Rej
)
•
Averaged QoS queue length (
Qlen
)
•
Averaged wait queue length (
WQlen
)
Figure 20 (page 165)
shows sample output for the
statqos
command.
Figure 20 Run-time Statistics Shown by the
statqos
Command
The column headers in
Figure 20 (page 165)
show:
Type
QoS target type (
vvset
or
sys
)
Name
QoS target name; also the name of the VVset on which the rule is
defined
I/O_per_second
IOPS cap, set by the user
Qt
Cur
Current IOPS
Avg
Average IOPS over all iterations of the
statqos
command so
far
Max
Maximum IOPS over all iterations of the
statqos
command
so far
Kbytes_per_second
IOPS cap, set by the user
Qt
Cur
Current IOPS
Avg
Average IOPS over all iterations of the
statqos
command so
far
Max
Maximum IOPS over all iterations of the
statqos
command
so far
Svt_ms
Total service time of I/Os processed by QoS (including wait time and
the real service time)
Wtt_ms
Wait time of I/Os delayed by QoS
IOSz_KB
I/O block size in KB (1 KB = 1000 bytes)
Rej
Number of I/Os rejected by QoS
WQlen
Number of I/Os delayed by QoS
Using HP 3PAR Priority Optimization
165