Redundant Data Memory Backup For Office Data - NEC Univerge SV8500 Operation And Maintenance Manual

11. REDUNDANT DATA MEMORY BACKUP FOR OFFICE DATA

11.1 Overview
Original office data and its redundant data can be managed in two different data drives (usu-
ally Drive B and C), to deal with failure causing the data loss. In this way, for example, even
when office data is lost due to failure occurring while the office data is being updated, the pre-
vious office data can be easily loaded because it is already managed in another drive. In FCCS system, this ser-
vice can be performed to all nodes.
CF Card
11.2 Redundant Data Memory Backup Procedure
• Office Data Installation
(1) Before office data update, save the existing office data to CF card from the memory using the MEM_HDD
command. Specify a Drive (usually Drive C) as the destination to save.
(2) After office data update has finished, save the updated office data to CF card from the memory using the
MEM_HDD command. Specify a different Drive (usually Drive B) from the Drive where the existing of-
fice data is saved as the destination to save.
• Undo Office Data Installation
(1) Confirm the Drive where the existing office data is saved referring to the date of office data file using the
DHDF command.
(2) Execute "Program & Office Data Load & System Initialize" by the SINZ command. For this operation,
specify the Drive (usually Drive C) where the existing office data has been saved. The Drive can be spec-
ified by [Option] in the menu bar. In default setting, Drive B is specified.
(3) Save the office data before update to CF card from the memory using the MEM_HDD command. Specify
the Drive (usually Drive B) where originally updated office data has been saved as the destination to save.
11.2.1 Service condition
1. In the routine diagnosis, office data verification and data backup are only applied to the Drive where office
Figure 2-23 CF card contents
Drive A
Drive B
Office data
Drive C
Office data
(Redundance)
Drive D
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CHAPTER 2 Operations of SV8500 Server
New program
used for office data
Old program
ATTENTION
Contents
Static Sensitive
Handling
Precautions Required