SAN Boot Implementation and Best Practices Guide ... - IBM Redbooks

Draft Document for Review June 27, 2012 9:05 am SG247958-DS5000-CL.fm
capabilities for advanced premium feature functions such as FlashCopy, Volume Copy, and
Enhanced Remote Mirroring. The DS Storage Manager software package also includes the
required host software components for the specific host environments that are planned for.
The DS Storage Manager software level is closely tied to the level of the firmware code that is
being run on the subsystem. Newer DS Storage Manager levels are designed to be backward
compatible with current firmware levels for previous generations of products as well as earlier
versions of firmware for the current product line. Newer firmware levels might require a newer
version of the Storage Manager to be installed.
Note: Always consult the System Storage Interoperation Center for the latest supported
host types and operating systems:
http://www-03.ibm.com/systems/support/storage/config/ssic/displayesssearchwitho
utjs.wss?start_over=yes
The DS Storage Manager software is now packaged as follows:
► Host-based software:
– Storage Manager 10.70.x Client (SMclient):
The SMclient component provides the GUI and the “smcli” interfaces for managing
storage subsystems through the Ethernet network or from the host computer.
– Storage Manager 10.70.x Runtime (SMruntime):
The SMruntime is a Java runtime environment that is required for the SMclient to
function. It is not available on every platform as a separate package, but in those
cases, it has been bundled into the SMclient package.
– Storage Manager 10.70.x Agent (SMagent):
The SMagent package is an optional component that allows in-band management of
the DS4000 and DS5000 storage subsystems.
– Storage Manager 10.70.x Utilities (SMutil):
The Storage Manager Utilities package contains command line tools for making logical
drives available to the operating system for specific host environments.
– Multipath drivers:
The storage manager offers a choice of multipath drivers, RDAC, or MPIO. This choice
might be limited depending on host operating systems. Consult the Storage Manager
readme file for the specific release being used.
RDAC or MPIO are Fibre Channel I/O path failover drivers that are installed on host
computers. These are only required if the host computer has a host bus adapter (HBA)
installed.
► Controller-based software:
– Storage Subsystem controller firmware and NVSRAM are always installed as a pair
and provide the “brains” of the DS5000 Storage Subsystem.
– Storage Subsystem Environmental Service Modules (ESM) firmware controls the
interface between the controller and the drives.
Storage Subsystem Drive firmware is the software that tells the specific drive types how to
perform and behave on the back-end FC loops.
Chapter 2. SAN Boot implementation with IBM System Storage DS5000 25