HP StorageWorks XP Performance Advisor Software v4.6 User and Troubleshooting Guide (T1789-96094, June 2010)

DescriptionScreen elements
The number of 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
Disk Fast Write count. 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
XP Continuous Access Journal Volume pool IDs.Jnl Group
An array group is divided into open volumes of equal
size. These volumes are referred to as emulation types.
If XP Performance Advisor cannot determine the emu-
lation 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. XP Performance Advisor
discovers LDEV-to-CHIP port connectivity. Unknown 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 resource is available only
on the XP24000, XP20000, XP12000, XP10000,
and XP1024/XP128 type arrays.
Host Group
The identification number for the LDEV.LDEV ID
Displays the average IO size in KBs for the selected
LDEV. The average IO size value is derived by dividing
the average MB/s with the number of IO/s (avg MB/
s / No. of IO/s).
IO Size
Viewing XP arrays resources198