IBM 88861TU Planning Manual page 71

This configuration has the following characteristics:
v Each blade server can access up to three hard disk drives in each storage
modules (for a maximum of six hard disk drives if you are implementing both
storage modules).
With this predefined configuration, blade server bays are mapped to hard disk
drive locations in each storage module. The location of the hard disk drives in
each storage module is important. For example, if you install a blade server in
blade server bay 4, it can access only the hard drives located in hard drive bay
2, hard drive bay 4, and hard drive bay 6 of each storage module.
v The SAS connectivity module must be installed in I/O module bay 3 and
controls access to the hard disk drives in both storage modules.
v All blade servers have access to all external ports on the SAS connectivity
module.
Note: This configuration maps the hard disks to the blade servers and the blade
servers to the external ports on the SAS connectivity module. You will need to use
the LSI Configuration Utility, MegaRAID Storage Manager, or ServerGuide to set
up mirroring.
Required: If you are going to use this configuration, the placement of the blade
servers in the BladeCenter S system is important. Blade servers must be installed
in blade server bays 1 and 4. Blade servers installed in any other blade server bay
will not be able to access the integrated shared storage.
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Chapter 4. Planning for configuration
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