HP XP Performance Advisor Software - Manual (Page 397)

Table 39 Metrics and descriptions (continued)
Description Metric Metric category
The frontend throughput in
MB/s data written Total Sequential Write MB –
Frontend
sequentially to the external
volume.
The amount of cache used
in MB. Cache Usage MB Cache MB Metric
The writes that are held in
cache, yet to be transferred
to the disks. Cache Writes Pending MB
Cache Sidefile Usage MB The
size of the Continuous
Access
Asynchronous side
file
usage in MB.
Single CLPR, data accessed
or the reads on a single
CLPR. CLPR Read Hits Cache IO Metric
Applicable only for XP disk
arrays. ACP Pair Util Total Utilization Metrics • The total utilization of the
ACP pair.
Example – ACP Pair BH has
B as the left ACP card and H
as the right ACP card. •
In a thin provisioning
environment where an
ACP pair is associated
with a ThP pool, the ACP
Pair Util Total metric
provides the ACP
utilization due to the I/O
cache miss (where
frontend I/Os occurring
on a ThP pool are
received at the array
backend). In this case,
ACP utilization also
correlates to the
utilization of RAID groups
associated with a ThP
pool.
The utilization of the MP# on
the ACP pair. •
ACP Pair Util MP0
• ACP Pair Util MP1
•
ACP Pair Util MP2
• ACP Pair Util MP3
•
ACP Pair Util MP4
•
ACP Pair Util MP5
• ACP Pair Util MP6
•
ACP Pair Util MP7
The total utilization of the left
ACP in the ACP pair. ACP Left Util Total
Metrics and descriptions 397