IBM Flex System V7000 Expansion Enclosure 4939H29 Benutzerhandbuch

Draft Document for Review January 29, 2013 12:52 pm

IBM Flex System V7000 Storage Node Introduction and Implementation Guide

in the system are successfully restarted with the new code level, the new level is 
automatically committed.

During an automatic code upgrade, each node of a working pair is upgraded sequentially. The 
node that is being upgraded is temporarily unavailable and all I/O operations to that node 
fails. As a result, the I/O error counts increase and the failed I/O operations are directed to the 
partner node of the working pair. Applications do not see any I/O failures. When new nodes 
are added to the system, the upgrade package is automatically downloaded to the new nodes 
from the IBM Flex System V7000 Storage Node.

The upgrade can normally be performed concurrently with normal user I/O operations. 
However, there is a possibility that performance could be impacted. If any restrictions apply to 
the operations that can be performed during the upgrade, these restrictions are documented 
on the Flex System V7000 Storage Node website that you use to download the upgrade 
packages. During the upgrade procedure, the majority of configuration commands are not 
available.

This automatic procedure provides a unified mechanism to upgrade the entire system in a 
coordinated process with no user intervention. Excluding drives, when a node is rebooted as 
part of the clustered system upgrade, the system checks that it is at the correct level. When 
the system detects that the hardware is not running at the expected level, the system applies 
the correct firmware.

When you are ready to upgrade, click Settings





 Upgrade Software in the 

management GUI and follow the instructions.to complete, as shown in Figure 13-9. See 
“Upgrade Procedure” on page 543.

Monitor the upgrade information in the management GUI to determine when the upgrade is 
complete.To determine when your upgrade process has completed, you are notified through 
the management GUI. If you are using the command-line interface, issue the 

 command to display the status of the upgrade.

During an automatic upgrade procedure, the Flex System V7000 Storage Node clustered 
system upgrades each of the nodes systematically. The automatic method is the preferred 
procedure for upgrading software on nodes; however, to provide more flexibility in the 
upgrade process, you can also upgrade each node manually. 

Note: Use the Software Upgrade Test Utility to help you find potential upgrade-related 
problems. You can download the most current version of this tool at the following website: