HP XP Performance Advisor Software User Manual
Page 179
Description
Performance View screen elements
Displays the I/Os, MB/s, and the
associated port IDs for all those
CHIPs/CHAs that are processing
requests.
The
port type, such as FCoE
(applicable
only for P9500/XP7 disk
arrays)
is also displayed beside the port
ID.
For
an XP7 disk array, the CHAs
are
grouped based on the clusters
to
which they belong.
CHIP Port Activity Ave group box
For more information, see
.
Displays the CLPR utilization data,
which includes the CLPR usage,
pending writes, and the sidefile usage
data. It provides an advisory based on
the CLPR utilization for the past one
week. For more information, see
“Advisory on CLPR utilization”
(page 185)
.
CLPR Details group box
Displays the overall average sequential
and non-sequential reads, and writes
for an ACP pair. For more information,
see
.
ACP Pair Backend group box
In
addition, the combined backend
transfer
value is displayed (only for
XP24000
and XP7 disk arrays), which
is
the sum of backend transfers
happening
on all the ThP pools served
by
a particular DKA. In a thin
provisioning
environment, the
Combined
BT section in the ACP Pair
Backend
group box displays values
based
on the following:
•
If a ThP pool is associated with one
DKA, the backend transfers on the
ThP pool are reported as combined
backend transfer for that DKA.
•
If the ThP pool is served by multiple
DKAs, the backend transfers on the
ThP pool are reported as combined
backend transfers for each of the
DKAs serving that ThP pool. Such
DKAs are also identified by a *.
For example, consider that
ThP_Pool_2 is served by DKA_1 and
DKA_2. If the ThP pool backend
transfer is 50 I/Os, the combined
backend transfer of DKA_1 and
DKA_2 is reported as 50 I/Os each.
•
If a DKA is serving multiple ThP
pools, the combined backend
transfers of the DKA is reported as
the sum of backend transfers on all
the associated ThP pools.
For example, consider that
ThP_Pool_1 is served by DKA_1 and
Viewing performance summary
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