Installing the storage subsystem configuration
Before attempting to attach hosts to the storage subsystem, make sure that the host systems and host bus
adapters (HBAs) are installed correctly and updated with the latest firmware and drivers.
Notes:
1.
See the documentation that comes with the HBA for installation requirements and procedures.
2.
Use the correct HBA firmware and device driver. For the latest supported HBAs and device drivers,
consult the readme that comes with the DCS3700 controller firmware.
For a SAS attached host, attach a SAS cable to each HBA. Continue with “Connecting SAS hosts to the
DCS3700” to connect the other end of each cable to a controller.
For a Fibre Channel attached host, attach a fibre channel cable to each HBA. Continue with“Connecting
Fibre Channel hosts to the DCS3700” on page 60 to connect the other end of each cable to the controller.
Connecting SAS hosts to the DCS3700
The DCS3700 can support up to 28 hosts when attached to the SAS Connectivity Module for IBM
BladeCenter and up to four hosts in a direct attached host environment. The number of supported hosts
depends on the number of host ports installed on the controller. To protect against the loss of any one
path from the host servers to the DCS3700 storage subsystem, use redundant host connections.
Note:
The DCS3700 ships with eight storage partitions by default. For additional storage partitions,
purchase an optional Storage Partition Premium Feature upgrade. Contact your IBM reseller or
marketing representative for more information.
To connect a SAS host bus adapter (HBA) to the storage subsystem, complete the following steps:
1.
Connect a SAS cable from the controller A host port to the SAS HBA that is in the host.
Figure 37. Direct (out-of-band) management method
Chapter 3. Cabling the DCS3700
57
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