NEC Express5800/320Ma Betriebsanweisung PDF herunterladen (Seite 71)

Splitting the System

Performing the Upgrade 4-3

Related Topics

• “System Prerequisites” on page 2-2

• “Splitting the System”

• “Viewing Active Upgrade Process Status” on page 4-21

• “Saving the Activity Log to a File” on page 5-1

• “Aborting the Upgrade” on page 4-19

• Troubleshooting

Splitting the System

Splitting an Express5800/320Ma system divides it into two independently-functioning

systems: the Production Side, which continues to run your applications, and the

Upgrade Side, which you can safely upgrade.

Splitting the system:

• Disables RDR mirroring between the internal disks in each CPU- I⁄ O enclosure.

• Isolates the Upgrade Side from system resources such as the network, any

user-specified application data disks, and any external PCI resources.

• Disables any user-specified applications and services on the Upgrade Side so they

cannot restart if you restart the operating system on the Upgrade Side.

• Queues any ActiveService Network alerts generated on the Upgrade Side until the

system is merged.

You can split a system only if it meets the prerequisites for the Active Upgrade process

and has passed the readiness check.

NOTES

1. When in split mode, the Upgrade Side has no access

to the network. If you need a network resource to

obtain any software installation packages you intend

to run, transfer the software to the system before you

initiate split mode. Furthermore, put the software on

one of the system disks, because these are the only

disks you can access on the Upgrade Side while the

system is in split mode.

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NEC Express5800/320Ma Betriebsanweisung Seite 71