HP XP Performance Advisor Software - Manual (Page 390)

Table 40 Metrics and descriptions (continued)
Description Metric Metric 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