HP StorageWorks 1500 Modular Smart Array Installation Guide (355901-004, October 2006)

Installation Procedures - All Deployments
19HP StorageWorks 1500 Modular Smart Array Installation Guide
Note: When examining the available firmware versions, consider the following:
■ The MSA ships with a single controller and active/passive firmware pre-installed. If
you plan to install an additional MSA controller and are interested in upgrading to
active/active, consider the complexity of your SAN, including the variety of device
types, operating systems, failover tools, and access requirements.
■ Confirm the latest list of supported operating systems, servers, Host Bus Adapters,
and any homogeneous/heterogeneous network limitations for the different MSA
firmware versions. See the two versions (active/active and active/passive) of the
compatibility guide, available on the Technical documents page of the MSA1500
website:
http://www.hp.com/go/msa1500cs .
■ After upgrading the MSA to active/active firmware, it is not possible to downgrade
at a later time to an active/passive version. Re-loading the older, active/passive
firmware will result in the loss of all configuration information on the MSA.
■ active/active firmware is supported for use only on MSA with 256MB or greater
controller cache modules. Before upgrading to active/active firmware, verify that
both MSA controllers meet this requirement.
■ For information on upgrading the MSA to active/active, see the migration
instructions for your operating system, available on the Technical documents page
of the MSA1500 website:
http://www.hp.com/go/msa1500cs .