Chapter 3 Notes - Fujitsu ETERNUS DX Configuration Manual

Chapter 3
Notes
Note the following issues when connecting the ETERNUS DX/AF to a server.
3.1 Installation Notes
To ensure reliable access to ETERNUS DX/AF storage systems, multipath configuration is recommended.
•
Setting up multiple access paths between the server and the ETERNUS DX/AF storage systems, then using
the Oracle VM Server multipath, provides improved access redundancy.
• Enable the virtualization support functions (Intel VT or AMD-V) of the server before installing Oracle VM
Server. For details on the settings, refer to the relevant manual of the server to be used.
• Install Oracle VM Server when the ETERNUS DX/AF is not connected to the server.
The ETERNUS Multipath Driver does not need to be installed on the Oracle VM Server Virtual Machine. The
•
Oracle VM Server multipath driver provides path redundancy.
When multiple paths are used, the Oracle VM Server multipath driver must be set. If a multipath driver is
•
not set, the Oracle VM Server multipath driver does not perform proper load balancing for the ETERNUS
DX/AF.
3.2 ETERNUS DX/AF Setup Notes
Host response must be set before the ETERNUS DX/AF is connected to the Oracle VM Server host.
3.3 Server Startup and Power Supply Control Notes
Before turning the server on, check that the ETERNUS DX/AF storage systems and Fibre Channel switches are
all "Ready". If the server is turned on and they are not "Ready", the server will not be able to recognize the
ETERNUS DX/AF storage systems.
Also, when the ETERNUS DX/AF power supply is being controlled by a connected server, make sure that the
ETERNUS DX/AF does not shut down before the connected servers. Similarly, the Fibre Channel switches must
also be turned off after the connected servers have been shut down. If turned off, data writes from the run-
ning server cannot be saved to the ETERNUS DX/AF storage systems, and already saved data may also be
affected.
FUJITSU Storage ETERNUS DX, ETERNUS AF Configuration Guide -Server Connection- (Fibre Channel) for Oracle VM Server for x86
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