Overview And Upgrade Considerations; Considerations For Upgrading Controller Software And Firmware; Chapter 4. System Upgrade; Upgrade Thinksystem San Os Software - Lenovo ThinkSystem DE Series Hardware Installation And Maintenance Manual

Chapter 4. System upgrade

This chapter describes how to upgrade your controller and ThinkSystem SAN OS software.

Upgrade ThinkSystem SAN OS software

Overview and upgrade considerations

Learn what you need to know before upgrading your storage array's ThinkSystem SAN OS controller
software and firmware and its drive firmware.

Considerations for upgrading controller software and firmware

To ensure a successful upgrade, keep in mind some key considerations as part of your planning.
The following table describes the storage array components that are automatically updated as part of the
upgrade process and the storage array components that must be upgraded separately.
Components included in the upgrade
• Management software – System Manager is
the software that manages the storage array.
• Controller firmware – Controller firmware
manages the I/O between hosts and volumes.
• Controller NVSRAM – Controller NVSRAM is a
controller file that specifies the default settings
for the controllers.
• IOM firmware – The I/O module (IOM) firmware
manages the connection between a controller
and a drive shelf. It also monitors the status of
the components.
• Supervisor software – Supervisor software is
the virtual machine on a controller in which the
software runs.
You can view your current software and firmware versions in the Software and Firmware Inventory dialog
box. Go to Support ➙ Upgrade Center, and then click the link for Software and Firmware Inventory.
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Components that must be upgraded separately
In some configurations, ThinkSystem System
Manager might be used on a storage system that
uses components of ThinkSystem Storage Manager
that must be upgraded separately. Check whether
any of the following conditions apply:
• If your storage system is part of a storage
network that includes multiple storage systems,
you might use the ThinkSystem Storage Manager
Enterprise Management Window (EMW) for
unified management of all of your storage
systems. In this case, upgrade ThinkSystem
Storage Manager.
• If you use the command line interface (CLI) or
scripts that rely on the CLI to help manage your
storage system, upgrade ThinkSystem Storage
Manager.
• As part of the upgrade process, the host's
multipath/failover driver and/or HBA driver might
also need to be upgraded so the host can
interact with the controllers correctly. If hosts
running operating systems other than Microsoft
Windows have I/O connections to your storage
system, upgrade the multipath drivers for those
hosts. See the procedures in the Express
Configuration for your operating system.
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