Hitachi Command Suite 8 User Guide

About the Storage Systems treeHitachi Command Suite lists registered storage systems and providesinformation summaries in the Storage Systems tree on the Resources tab.
The Storage Systems tree lists:• Storage systems• DP Pools
• Parity groups
• Volumes ○Open-Allocated
○ Open-Unallocated
○ Open-Reserved
○ Mainframe-Unspecified
• External Storage
The Storage Systems tree is the starting point for changing the configuration
of these resources.
Related tasks
•
Viewing current storage system information  on...

2.Choose one of the following options:
• For Virtual Storage Platform G1000 storage systems: Select  Components .
• For other available storage systems: From the  Actions list in the application pane, select  Element
Manager , and then from the  Storage Systems tree, select
Components .
3. On the  Components  window, click  Chassis ID.
Result The MP Blade information is displayed.
Tip:  For details about editing MP Blade information, click Help.
About the Hosts tree
Hitachi Command Suite lists registered...

About the file server viewYou view information about the volumes and file systems of managed file
servers through the file server view.
Information acquired by the Device Manager can be hierarchically displayed
by registering a file server as a Device Manager resource. Users can select a
file server from the file server view to allocate or unallocate.
You can execute setting operations such as allocation and unallocation by cluster or by file server (node).
Related tasks
•
Monitoring file servers  on...

• Identifying performance problems for storage systems:○If there is an application performance issue, obtain the information
needed to identify a logical group. For example, this could be the host where the problem occurred, the label of the volume, or the mount
point. Based on the acquired information, specify the period (up to thepast 30 days) for analyzing the performance and the logical group or
the host that corresponds to the application in order to analyze the
performance issue. Check that no...

output to a PDF or CSV file. If output to a PDF file, the contents and a
summary are created so that the report can be submitted as is. If output to a CSV file, the report is useful as a general-purpose file, and it
can be effectively used to create materials by editing the format.
For more detailed performance information, by starting Performance Reporter, you can perform an analysis in minute units or analysis of long-
term trends. If you import a report definition to Performance Reporter in
Tuning...

Procedure1. From the tree in the  Analytics tab, select the target logical group and
click  Identify Performance Problems . You can also select a host or
specific volumes in the target logical group.
2. Read the  Introduction  and click Next.
3. Based on the application information acquired from the host
administrator, set the storage system type, volumes, and period to analyze, and then click  Next.
4. In Overview , check for resources with performance threshold cautions:
• For an MP Blade/Unit with...

Related concepts
•
About analyzing storage system performance  on page 403
Related tasks
•
Creating periodic health check reports for storage systems performance
analysis  on page 412
•
Analyzing and load balancing MP Blades or MP Units  on page 407
Related references •
Configuring the Performance Reporter display  on page 420
Analyzing and load balancing MP Blades or MP Units On the Analytics tab you can identify MP Blades and MP Units with a busy
rate exceeding caution thresholds, and assign resources...

• Expand the storage system tree, select a storage system from theapplication pane, and then click  Analyze MP Blades/Units. The
Analyze MP Blades  window opens.
2. On the  Analyze MP Blades  window, verify that the  Analysis Target
information is correct.
3. In MP Blades Busy Rate , examine the busy rate graph and determine
which MP Blade is a candidate (based on exceeding thresholds, or having
the highest busy rate) for reassigning resources to a less busy MP Blade.
If a target MP Blade is not already...

Related tasks
•
Identifying storage system performance problems  on page 405
•
Changing peformance threshold settings to correctly analyze storage
system performance  on page 419
Related references
•
Configuring the Performance Reporter display  on page 420
Metrics of volumes of Virtual Storage Platform G1000, Virtual
Storage Platform, and HUS VM (Identify Performance Problems
wizard) Volume metrics for enterprise storage systems, as shown in the performanceproblem wizard, can help identify performance...

ItemMetricThresholdNotesWrite
Pending
Rate +
Side File
Usage
RateCaution:  ≧
70%• It is very important to look at both CWP and SF together since they share the same cache pool and
cannot exceed 70%.
• The closer CWP or SF, or CWP+SF is to 70%, the closer the storage system is to major performance
problems.
• When the write pending reaches 70%, the storage system starts to destage write data until the write
pending usage reaches 30%, which will degrade
performance.MP Blade
(Virtual
Storage
Platform
G1000,...