HP XP Performance Advisor Software - Manual (Page 389)

Table 40 Metrics and descriptions (continued)
Description Metric Metric category
The total random frontend
reads rate on this external Total Random
Read-Frontends
volume during the entire
collection interval.
Out of the total random
frontend reads rate on this Total Random Reads Cache
Hit-Frontend
external volume, the number
of random reads available
in the cache.
The total random frontend
writes rate on this external Total Random Write -
Frontend
volume during the entire
collection interval.
The total sequential frontend
I/Os rate on this external Total Sequential IO -
Frontend
volume over an entire
collection interval.
The total sequential frontend
I/Os rate on this external Total Sequential Read -
Frontend
volume for a given range of
time.
The number of sequential
frontend reads serviced from Total Sequential Reads
Cache Hit - Frontend
the cache in terms of the
I/Os rate on this external
volume.
The total sequential frontend
write rate for this external Total Sequential Write -
Frontends
volume over a given time
interval.
It is the ratio of the total
frontend I/Os occurring on Frontend Vs. Backend Hit
Ratio
a ThP pool versus the total
backend tracks associated
with a ThP pool.
The total frontend I/Os rate
on this LDEV over a given LDEV Total IO – Frontend
time period. Total I/O of all
the LDEVs created in a
specified Raid Group over
the entire data collection
interval. I/Os on LDEV is
obtained from RMLIB but not
the I/Os on LDEV specific to
the Host Group.
The total random frontend
I/Os rate on this LDEV LDEV Total Random IO –
Frontend
during the entire collection
interval.
The total random frontend
read I/Os on this LDEV LDEV Random Reads –
Frontend
during the entire collection
interval.
Out of the total random
frontend read I/Os on this LDEV Random Reads Cache
Hits – Frontend
Metrics and descriptions 389