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6. Troubleshooting
Check List
6
Access ETERNUS Web GUI or ETERNUS CLI by using the default IP address to perform the network
environment settings and the firewall settings.
IMPORTANT
Make sure to enable the firewall setting for the protocol that is used for each service.
• To use ETERNUS Web GUI, enable the http or https connection. If the connection is disabled, the
ETERNUS AF cannot connect to the network via GUI.
• To use ETERNUS CLI, enable the telnet or SSH connection. If the connection is disabled, the
ETERNUS AF cannot connect to the network via CLI.
• To use the "ping" command for the ETERNUS AF, enable the ICMP connection. If the connection is
disabled, the ETERNUS AF does not respond to the "ping" command.
• To use monitoring software, enable the Maintenance Secure connection. If the connection is
disabled, the ETERNUS AF cannot connect to the network via monitoring software.
• To use the SNMP Manager, enable the SNMP connection. If the connection is disabled, the
ETERNUS AF does not respond to SNMP access.
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Check whether each service can connect to the ETERNUS AF.
If it cannot connect, contact your maintenance engineer.
■
When I/O Access Is Slow
Check the points that are shown below. When the cause is not identified, contact your maintenance engineer.
•
Check the battery status of the ETERNUS AF by using ETERNUS Web GUI.
If the battery charge rate is low or if the replacement time for a battery has passed, the performance of the
ETERNUS AF degrades because the operational state of the cache is changed to Write Through mode.
If the replacement time for a battery has passed, contact your maintenance engineer.
Click the icon of each part on the [Storage] screen of [Component] of ETERNUS Web GUI to check if an
•
abnormality is detected in ETERNUS AF parts.
If an abnormality is detected, contact your maintenance engineer.
•
Check the path status.
-
If the ETERNUS Multipath Driver is used, start ETERNUS Multipath Manager.
If an abnormality is detected in a path, refer to the ETERNUS Multipath Driver manuals and follow the
direction given in the manuals.
If the ETERNUS Multipath Driver is not used, check the path status by using the path management tool that
-
each software provides and handle any problems as required.
Check the loading of the ETERNUS AF. If the load is out of balance because of operation content changing or
•
for other reasons, review the configuration and settings.
•
Check the transfer rate of the FC port.
If the transfer rate for the ETERNUS AF is different from the server or the FC switch, set the same transfer rate
as the server or FC switch.
Check the number of command queues in the server.
•
When there are no problems in the process capacity of the server, adjust the number of command queues so
that the I/Os are issued for the appropriate number.
For details on the number of command queues, refer to "Configuration Guide -Server Connection-".
Check the message log of the OS on the server that is connected and then take the appropriate actions.
•
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Operation Guide (Basic)
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