Hitachi Command Suite 8 User Guide

Related tasks
•
Monitoring Universal Replicator performance  on page 425
•
Configuring network bandwidth for analysis  on page 427
Related references
•
Prerequisites for analyzing Universal Replicator performance  on page 425
Analyzing Universal Replicator performance in wizard mode In wizard mode, the GUI guides you through the process of examining
resource metrics and suggests possible solutions.
Prerequisites
You must satisfy the following requirements before using the UR Performance Analysis window:...

can affect how the display is refreshed in the UR Performance Analysis
window.
• By default, new performance data is collected through Hitachi Tuning Manager every four hours. A gray zone in the graph indicates
uncollected data. If you click  Refresh Performance Data  at this
point, the wizard closes and you restart this procedure when the task
is complete.
5. On the displayed pages, examine each metric and use the checkbox to
mark any resources that exceed the threshold. (You can select  Mark
resources...

• Ensure that users have the necessary permissions (roles and resourceaccess) for the UR Performance Analysis window of the Replication tab.Note:  The performance analysis function supports copy groups consisting of
open volumes. Copy groups that are defined by device group, use multiple
journal groups in a Universal Replicator MxN configuration, or use virtual
command devices, are not supported.Note:  If you see cache or processor resources listed that are not associated
with the copy group you are...

Tip: The list of volumes also includes any TrueCopy Synchronous copy
groups that use the same remote path as the target.
• You can also annotate a graph with  memos, text windows that allow you to
take notes.
○ Click Add Memo to start a new note. You can also add a note by double-
clicking within a graph.
○ As with any window, you can move, minimize, or delete it using the
controls in the title bar.
• Configure Thresholds for M-JNL Analysis changes the threshold value (horizontal red line) in the chart....

• Analysis Target (advanced mode)
Procedure 1. If you are exporting data from the Analyze Universal Replicator
performance main screen, first select a copy group from the  Copy
Groups  tab.
2. Click  Export .
If you are exporting data from the main screen, you are prompted to
select a Time Period.
3. For graphs in the advanced mode pane, any memos you created are
included by default. To exclude your memos from the report, de-select
Display the memos on the graphs .
4. Click  Submit .
5. Select the export...

For best results, first observe the Array Port Transfer Rate (amount of data
output from a port) or the M-JNL Async Transfer Rate to RCU (amount of
data output for each M-JNL). Once you have identified the specific copy
group, you can use the PVOL Write Transfer Rate to determine which application/host uses the constituent P-VOLs, or which host group has
written the largest amount of data.
• P-VOL traffic may be overloading storage resources.
If you observe the Host Write Transfer Rate to M-JNL increase...

• The upper limit of the alerts that are managed by HCS is 500,000. Whenthe number of alerts exceeds the upper limit, older alerts are deleted.
Alerts can also be delivered in email when SNMP traps are received from storage systems or file servers (Hitachi NAS Platform v12.0 or later, Hitachi
NAS Platform F, and Hitachi Data Ingestor only). To configure the required
settings, see the  Hitachi Command Suite Administrator Guide .
Related tasks
•
Confirming an alert  on page 437
Confirming an alert You can...

438Monitoring managed resources and resolving alertsHitachi Command Suite User Guide 

A
Managing storage resources that havevirtual IDs
This module describes specific functionality available for virtualized volume
resources for which virtual IDs are assigned.
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About managing storage resources that have virtual IDs
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Displaying virtual ID information
□
Allocating volumes to hosts with virtual IDs
Managing storage resources that have virtual IDs439Hitachi Command Suite User Guide 

About managing storage resources that have virtual IDsWhen replacing an old storage system with a Virtual Storage Platform or HUSVM, you can use virtual IDs to migrate host resources (volumes) without
stopping the host. Virtual IDs provide information about the old storage
system, and are configured on the migration-destination resource. By using
Device Manager, you can check virtual IDs after data migration and perform operations on a resource that has been assigned virtual IDs. Even if you can
view the...