HP LeftHand P4000 SAN Solutions User Manual
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monitor the activity for the data movement between tiers. For example, you can view information
such as the following:
•
The percentage of space used on all the tiers, and on individual tiers, shown in
•
The read and write activity for the tiers, including latency
Figure 104 Percent of volume space used
Planning SAN improvements using the Performance Monitor
If you have questions such as these about planning for SAN improvements, the Performance Monitor
can help:
•
Would enabling NIC bonding on the storage systems improve performance?
•
Is the load between two clusters balanced? If not, what should I do?
•
I have budget to purchase two new storage systems.
Which volumes should I migrate to them to improve performance?
◦
◦
Which cluster should I add them to?
The Performance Monitor can let you see the following:
•
Network utilization to determine if NIC bonding on the storage systems could improve
performance
•
Load comparison of two clusters
•
Load comparison of two volumes
Network utilization to determine if NIC bonding could improve performance example
This example shows the network utilization of three storage systems. You can see that Denver-1
averages more than 79% utilization. You can explore performance issues by examining utilitization
by individual ports and by the cluster as a whole. NIC bonding methods LADP and ALB may
improve performance over Active-Passive bonding. Using 10 GbE may help performance in some
situations, and 10 GbE can be bonded with 1 GbE interfaces in many storage systems.
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Monitoring performance