HP StorageWorks P9000 Performance Advisor Software v5.3 User and Troubleshooting Guide (T1789-96322, August 2011)

DescriptionMetricMetric category
The total random frontend
I/Os rate on this LDEV
during the entire collec-
tion interval.
LDEV Total Random IO –
Frontend
The total random frontend
read I/Os on this LDEV
during the entire collec-
tion interval.
LDEV Random Reads –
Frontend
Out of the total random
frontend read I/Os on this
LDEV, the number of ran-
dom reads available in
the cache.
LDEV Random Reads
Cache Hits – Frontend
The total random frontend
write I/Os on this LDEV
during the entire collec-
tion interval.
LDEV Random Writes –
Frontend
The total sequential fron-
tend I/Os rate on this
LDEV over an entire collec-
tion interval.
LDEV Total Sequential IO
– Frontend
The total sequential fron-
tend I/Os rate on this
LDEV for a given range of
time.
LDEV Sequential Reads –
Frontend
The number of sequential
frontend read I/Os ser-
viced from the cache in
terms of the I/Os rate on
this LDEV.
LDEV Sequential Reads
Cache Hits – Frontend
The total sequential fron-
tend write I/Os for this
LDEV over a given time
interval.
LDEV Sequential Writes
– Frontend
The output of LDEV
Total IO – [(LDEV
Random Read Cache
Hits) + (LDEV Se-
quential Read Cache
Hits)]
Total LDEV IO Miss –
Frontend
The total random and se-
quential frontend read
I/Os on this LDEV during
the entire collection inter-
val.
Total IO Reads – Fron-
tend
HP StorageWorks P9000 Performance Advisor Software User Guide 445