HP LeftHand P4000 Virtual SAN Appliance Software User Manual
Page 215
Table 61 Performance Monitor statistics
NSM
Volume or Snapshot
Cluster
Definition
Statistic
X
X
X
Average read requests
per second for the
sample interval.
IOPS Reads
X
X
X
Average write requests
per second for the
sample interval.
IOPS Writes
X
X
X
Average read+write
requests per second
for the sample interval.
IOPS Total
X
X
X
Average read bytes
per second for the
sample interval.
Throughput Reads
X
X
X
Average write bytes
per second for the
sample interval.
Throughput Writes
X
X
X
Average read and
write bytes per second
for the sample interval.
Throughput Total
X
X
X
Average read transfer
size for the sample
interval.
Average Read Size
X
X
X
Average write transfer
size for the sample
interval.
Average Write Size
X
X
X
Average read and
write transfer size for
the sample interval.
Average I/O Size
-
X
X
Number of
outstanding read
requests.
Queue Depth Reads
-
X
X
Number of
outstanding write
requests.
Queue Depth Writes
X
X
X
Number of
outstanding read and
write requests.
Queue Depth Total
X
X
X
Average time, in
milliseconds, to service
read requests.
IO Latency Reads
X
X
X
Average time, in
milliseconds, to service
write requests.
IO Latency Writes
X
X
X
Average time, in
milliseconds, to service
IO Latency Total
read and write
requests.
-
X
X
Percent of reads
served from cache for
the sample interval.
Cache Hits Reads
X
-
-
Percent of processor
used on this storage
CPU Utilization
Accessing and understanding the Performance Monitor window
215