HP StorageWorks P9000 Performance Advisor Software v5.4 User Guide (T1789-96328, April 2012)

Related Topics
• “Front-end navigation path” on page 269
• “Cache navigation path” on page 271
• “MP Blades navigation path” on page 273
• “Back-end navigation path” on page 275
• “Pools navigation path” on page 278
• “Snapshot Pool navigation path” on page 282
• “Replication Volumes navigation path” on page 284
• “Host Groups navigation path” on page 287
• “Ext-RG(s) navigation path” on page 291
• “Drive types navigation path” on page 292
• “Custom groups navigation path” on page 293
Host Groups navigation path
For the XP disk arrays
The Host Groups category comprises of ports, RAID groups, and LDEVs configured to communicate
with the individual host groups. Each individual host group has three main component types, Ports,
RAID Groups, and LDEVs. The aggregate of the average I/Os from each LDEV belonging to a host
group is also displayed beside that individual host group.
• Ports displays the individual ports associated with the host group.
The aggregate of the average I/Os from each LDEV belonging to a host group through the port
is also displayed beside each individual port ID.
Similarly, the average I/Os for each LDEV associated with the port is displayed beside the indi-
vidual LDEV.
• RAID Groups displays the individual RAID groups which contains the LDEVs associated with the
host group. At this level, you can view the overall utilization of the RAID group. Each RAID group
further displays all the physical LDEVs and pool LDEV which may and may not be associated with
the selected host group.
• LDEVs displays all the LDEVs that are associated with the individual host group.
The average I/Os for each LDEV belonging to the host group is displayed beside the individual
LDEV.
In the above mentioned selections, the LDEVs are displayed in the descending order, where the
maximum utilized LDEV is displayed first followed by the subsequent, and least utilized LDEVs.
Following are the component selection path:
• Host Groups > Individual host groups > Ports (component type) > Individual Ports.
• Host Groups > Individual host groups > RG(s) (component type) > Individual RAID groups. At the
individual RAID group level, you can view the average utilization of the RAID group by the asso-
ciated LDEVs. The utilization shown is not specific to the host group to which the RAID group be-
longs. Each RAID group further displays the following:
• Individual RAID group > Physical LDEVs (component type) > Individual physical LDEVs.
• Individual RAID group > Pool LDEVs (component type) > Individual pool LDEVs.
• Host Groups > Individual host groups > LDEVs (component type) > Individual LDEVs. At the indi-
vidual LDEV level, you can view the corresponding average I/O per second data.
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