Figure 9.1 Eternus Multipath Manager Window - Fujitsu Eternus DX60 User Manual

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Chapter 9 Operation and Maintenance
>
9.5 Troubleshooting
Refer to the following sections for details on these functions.
• "1.3.4 RAID Migration" (page 42)
• "1.3.5 Logical Device Expansion" (page 44)
• "1.3.6 LUN Concatenation" (page 45)
When I/O access is slow
Check the following:
Check that the ambient temperature does not exceed the operating environment conditions. If
so, Nearline SAS disk performance may be reduced.
Click the icon of each part in the Storage System Status screen of GUI to check if an
abnormality is detected in ETERNUS DX60/DX80/DX90 parts.
If an abnormality is detected, contact your maintenance engineer.
Check the path status.
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Check the loading of the ETERNUS DX60/DX80/DX90. If the load is out of balance because
of operation content changing and so forth.
When the cause is not identified, contact your maintenance engineer.
Refer
P3AM-3042-06ENZ0
ETERNUS DX60/DX80/DX90 Disk storage system User Guide
When using ETERNUS Multipath Driver, start ETERNUS Multipath Manager.
For Windows®, click [Start] - [Program] - [ETERNUS Multipath Driver] - [ETERNUS
Multipath Manager] to start ETERNUS Multipath Manager.
If an abnormality is detected in a path, refer to ETERNUS Multipath Driver manuals and
follow the direction given in the manuals.
Figure 9.1
ETERNUS Multipath Manager Window
When not using ETERNUS Multipath Driver, use the path management tool and check the
path status that each software provides, and handle the problem if necessary.
"ETERNUS DX60/DX80/DX90 Web GUI User Guide"
ETERNUS Multipath Driver manuals
211
Copyright 2010 FUJITSU LIMITED

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