HP StorageWorks Performance Advisor XP Software user guide (T1789-96025, October 2007)

Figure 8 Summary by Port
When the field is in Summary mode, filtering is not allowed. However, you can set filters before you
select the Summary by option. For example, to view a summary of only array 10033, select that array in
the Show Array drop-down m enu and then select Port Summary to view summary lines for only those
ports that exist on array 10033. Summary by Port shows an example of a Sum mary by Port screen.
When you request a port summary report, the total I/Os displayed may not be equal to the sum of I/Os
across each of the ports. This can occur if multiple paths to an LDEV exist. The port I/O summary
indicates the I/O ceiling values across the ports. It does not indicate the absolute or accurate I/O
rate across the ports.
Working w
ith LD EVs
If LDEVs a
re associated with multiple RAID groups (such as in 4D+4D configurations where the LDEV
is mirror
ed on two different RA ID groups) , these multiple RAID groups are treated as separate sets of
items. F
or example, if you h ave an LDEV with RAID g roup 1-1 1-2, you must select 1-1 1-2 in the
drop-do
wn menu. An LDEV mapped to 1-1 1-2 is treated separately from a RAID group mapped only
to 1-1 or only to 1-2.
Additional details
The Grid Display screen also provides the following details for the query:
• Total I/O
• Total MB/sec
• Total backend transfers
• Parameters selected for the current query
• Status of the information
• Date and time when the array was queried
If you do n ot see Total I/O, Total MB/s,andTotal Track fields,itisbecauseyouhavetheexternalRAID
group, RA ID group, XP Thin Provisioning and Snapshot p o ol information comp onents split between two
data configuration schedules.
SLPR detail view
Double-click an SLPR value on the Grid Display screen to display the detail view for that SLPR in a
sepa
rate browser window. For information on SLPR, see Storage manag em ent logical partitions (SLPRs)
in Appendix A.
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Grid Display