HP XP P9000 Performance Advisor Software v6.0 User Guide

Table 40 Metrics and descriptions (continued)
DescriptionMetricMetric category
LDEV, the number of random
reads available in the
cache.
The total random frontend
write I/Os on this LDEV
LDEV Random Writes –
Frontend
during the entire collection
interval.
The total sequential frontend
I/Os rate on this LDEV over
an entire collection interval.
LDEV Total Sequential IO –
Frontend
The total sequential frontend
I/Os rate on this LDEV for a
given range of time.
LDEV Sequential Reads –
Frontend
The number of sequential
frontend read I/Os serviced
LDEV Sequential Reads
Cache Hits – Frontend
from the cache in terms of
the I/Os rate on this LDEV.
The total sequential frontend
write I/Os for this LDEV over
a given time interval.
LDEV Sequential Writes –
Frontend
The output of LDEV Total
IO [(LDEV Random
Total LDEV IO Miss –
Frontend
Read Cache Hits) +
(LDEV Sequential
Read Cache Hits)]
The total random and
sequential frontend read
Total IO Reads – Frontend
I/Os on this LDEV during the
entire collection interval.
The total random and
sequential frontend write
Total IO Writes – Frontend
I/Os on this LDEV during the
entire collection interval.
The total random and
sequential frontend read
Total MB Reads – Frontend
MBs on this LDEV during the
entire collection interval.
The total random and
sequential frontend Write
Total MB Writes – Frontend
MBs on this LDEV during the
entire collection interval.
This metric represents the
Read IO share (%) out of
Read/Write IO Ratio [%] –
Frontend
total IO for the selected host
group.
This metric represents Read
MB share (%) out of total MB
for the selected host group.
Read/Write MB Ratio [%] –
Frontend
Single port.The maximum frontend I/Os
rate on this port over an
Maximum Port IO – Frontend
entire collection interval. It is
the maximum of the last
collection interval. For
390 Metric Category, metrics, and descriptions