Configuring A Sas Raid Array - IBM JS21 - BladeCenter - 8844 Installation And User Manual

3. Enable only one of the Ethernet controllers on the blade server. Note the
4. Ping an external computer on the network that is connected to the switch
If you have installed an I/O expansion card in the blade server, communications
from the expansion card should be routed to I/O-module bays 3 and 4, if these bays
are supported by your BladeCenter unit. You can verify which controller on the card
is routed to which I/O-module bay by performing the same test and using a
controller on the expansion card and a compatible switch module or pass-thru
module in I/O-module bay 3 or 4.

Configuring a SAS RAID array

Configuring a SAS RAID array applies to a blade server in which two SAS hard disk
drives are installed.
Two SAS hard disk drives in the blade server can be used to implement and
manage RAID level-0 and RAID level-1 arrays in operating systems that are on the
ServerProven list at http://www.ibm.com/servers/eserver/serverproven/compat/us/.
For the blade server, you must configure the SAS RAID array through the optional
ServeRAID
The IBM ServeRAID Support CD contains the ServeRAID Manager program, which
you can use to configure the hard disk drives for use with the SAS controller. For
details about using these programs, see the documentation on the IBM ServeRAID
Support CD.
Important: Depending on your RAID configuration, you must create the array
Before you can create a RAID array, you must reformat the hard disk drives so that
the sector size of the drives changes from 512 MB to 528 MB. If you later decide to
remove the hard disk drives, delete the RAID array before you remove the drives. If
you decide to delete the RAID array and reuse the hard disk drives, you must
reformat the drives so that the sector size of the drives changes from 528 MB to
512 MB.
designation that the blade server operating system has for the controller.
module or pass-thru module. If you can ping the external computer, the Ethernet
controller that you enabled is associated with the switch module or pass-thru
module in I/O-module bay 1. The other Ethernet controller in the blade server is
associated with the switch module or pass-thru module in I/O-module bay 2.
™
Manager program.
before you install the operating system in the blade server. See the IBM
ServeRAID Support CD for more information.
Chapter 4. Configuring the blade server
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