HP StorageWorks P9000 Performance Advisor Software v5.2 User and Troubleshooting Guide (T1789-96315, June 2011)

DescriptionScreen elements
The DFW sequential reads transferred to the backend
on the LDEV. (It is shown only if Main Frame volumes
are available for the selected XP array).
DFW Sequential Count
The backend transfer sequential reads for the LDEV.Backend Transfer Sequential Reads
The backend transfer non-sequential reads for the
LDEV.
Backend Transfer Non-Sequential Reads
The backend transfer writes for the LDEV.Backend Transfer Writes
The DFW counts that are relevant only to mainframe
volumes. These fields are zeros when the emulation
type starts with OPEN. (It is shown only if Main Frame
volumes are available for the selected XP array).
DFW Count
An array group is divided into open volumes of equal
size. These volumes are referred to as emulation types.
If P9000 Performance Advisor cannot determine the
emulation type, an error appears. The error does not
affect performance data collection.
NOTE:
The emulation type is displayed as "Not Known" for
emulations that start with "OPEN-XP".
Emulation
The external LUN LDEV ID on the external array.E-LDEV
Indicates that the LDEV is an Ext-Lun. The following
options are available:- (hyphen) = Normal LUN E =
Ext-Lun P = Ext-Lun provider (this LDEV is used as an
Ext-Lun for another array)
Ext-Lun
A list of Ext-Lun initiator ports (ports used to connect
to an external array).
E-Port(s)
The Ext-Lun provider's serial number for the array.E-Seq
The name of the host machine. P9000 Performance
Advisor discovers LDEV-to-CHIP port connectivity. Un-
known is displayed if the host name is unknown. This
automatic CHIP-LDEV mapping works only for open
volumes. When using mainframe LDEVs, use the
userhostcfg CLUI to add mainframe hosts.
Host ID (Host identifier)
The port host group. This component is available only
on the XP24000, XP20000, XP12000, XP10000,
and XP1024/XP128 type arrays.
Host Group
Displays the average IO size in KBs for the selected
LDEV. The average IO size is derived by dividing the
total MB/s with the total I/Os for that LDEV (IO size
= LDEV MB Total/LDEV IO Total).
IO Size
The continuous access journal pool IDs.Jnl Group
The identification number for the LDEV.LDEV ID
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