HP XP P9000 Performance Advisor Software v6.0 User Guide

DescriptionPerformance 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 Fibre or FCoE
(applicable only for P9000 disk arrays)
is also displayed beside the port ID.
For a P9000 disk array, the CHAs are
grouped based on the clusters to which
they belong.
CHIP Port Activity Ave group box
For more information, see “Viewing
CHIP/CHA data” (page 182).
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 182).
CLPR Details group box
Displays the overall average sequential
and non-sequential reads, and writes
for an ACP pair. For more information,
see “Viewing ACP/DKA data”
(page 186).
In addition, the combined backend
transfer value is displayed (only for
XP24000 and P9000 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
ACP Pair Backend group box
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
DKA_2, and ThP_Pool_2 is served
176 Viewing XP and P9000 disk array components