Performance Information Management; Device Time Synchronization; Figure 21 Device Time Synchronization - Fujitsu ETERNUS DX500 S3 Overview

3. Basic Functions
Operation Management

Performance Information Management

The ETERNUS DX supports a function that collects and displays the performance data of the storage system via
ETERNUS Web GUI or ETERNUS CLI. The collected performance information shows the operation status and load
status of the ETERNUS DX and can be used to optimize the system configuration.
Performance information that can be collected includes host I/O information (IOPS values, throughput values,
response time, cache hit rate), QoS information (IOPS values, throughput values, delay time), and the usage
information of CMs (CPUs) and drives.
ETERNUS SF Storage Cruiser can be used to easily understand the operation status and load status of the ETER-
NUS DX by graphically displaying the collected information on the GUI. An administrator can also use ETERNUS
SF Storage Cruiser to monitor the performance threshold and specify how long performance information is re-
tained.

Device Time Synchronization

The ETERNUS DX has a clock function and manages time information of date/time and the time zone (the region
in which the ETERNUS DX is installed). This time information is used for internal logs and for functions such as
Eco-mode, remote copy, and remote support.
The automatic time correction by the Network Time Protocol (NTP) is recommended to synchronize time in the
whole system.
When using the NTP, specify the NTP server or the SNTP server. The time correction mode is Step mode (immedi-
ate correction). The time is regularly corrected every three hours once the NTP is set.

Figure 21 Device Time Synchronization

NTP server
NTP
Date and Time
yyyy
Time Zone
GMT
Daylight Saving Time
ETERNUS DX
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