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For example, assume that you have created a scalable blade complex and defined that complex as a single
partition through the advanced management module web interface:
• You can toggle the scalable blade complex to stand-alone mode through the web interface. In stand-
alone mode, you can install a different operating system on each blade server and run different
applications on each blade server.
• You can then toggle the blade server complex back to a single partition and run applications that take
advantage to up to 4 processors and 32 DIMMs. The operating system that is in use is the operating
system of the primary blade server.
• Later, you can toggle the complex back to stand-alone mode again to gain access to the operating
system on the secondary blade server.
Single partition mode considerations
The following considerations apply to the blade servers in a scalable blade complex that operates as a single
hardware partition:
• All UEFI settings (set through the Setup utility) should be the same on both blade servers. If they are not,
the settings that are defined for the primary blade server replace the UEFI settings on the secondary
server.
Note: When you upgrade the firmware for the blade servers operating in single partition mode, you only
have to upgrade the primary blade server. The firmware on the secondary blade server is automatically
updated. See "Using the Setup utility" on page 20 for more information about the Setup utility.
• The primary blade server has access to the SSDs on the secondary blade server. However, the SSDs on
the primary blade server cannot be combined with the SSDs on the secondary blade server to form a
single RAID array. RAID arrays can be formed only using the SSDs within a blade server.
• The primary blade server has access to any I/O expansion cards that are installed in the secondary blade
server. However, the I/O expansion cards in the secondary blade server cannot be used for a Serial Over
LAN connection.
• The primary blade server has access to any expansion blades that are installed on the secondary blade
server.
Important: An expansion blade installed on the secondary blade server cannot be used for a Serial Over
LAN connection.
• If you press the power button on one blade server, both blade servers in the partition either power up or
power down, depending on the state of the blade servers when you press the power button.
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17
Chapter 1
Introduction
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