NEC 320Fc - Manual (Page 56)

Selecting Disks to Upgrade
3-6 Express5800/320Fc: Active Upgrade™ User’s Guide
You can mark each disk as a system disk or a data disk:
•
System disk
A disk that contains the system or application software you want to upgrade. Only
disks marked as System are available to the Upgrade Side while the system is
split.
The Active Upgrade console automatically marks some disks as system disks.
These mandatory system disks contain either boot files or paging files (virtual
memory files) that are currently in use by the running operating system. (For more
details, see the
mandatory system disk glossary entry.) You cannot change a
mandatory system disk to a data disk.
C A U T I O N !
You cannot use a system disk for storing persistent data
(for example, database files) related to your critical
applications. Any new data written to the original system
disk by the Production Side while the system is in split
mode is overwritten when you commit the upgrade. (See
the
Overview for information about the steps of the Active
Upgrade process.)
• Data disk
A disk that contains persistent data for your critical applications. Any disk marked
as Data is available only to the Production Side while the system is split. You
cannot upgrade software on a data disk.
(See the prerequisites for the Active Upgrade process for additional restrictions.)
Volumes on the Disk Selection page are color-coded as described in Table 3-1 .
Table 3-1. Hard Disk Color Coding
Color Description
Black Unassigned disk space
Blue Data disk
Light Green System disk
Dark Green Mandatory system disk
Red Disk is currently simplexed because it is being resynchronized with
RDR