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Network Wide Backup & Restore Planning Guide Rel 1.0 Standard July 1999

3-1

Network Wide Backup & Restore

Engineering Considerations 3-

Network Wide Backup & Restore Engineering Rules

The Network Wide Backup & Restore engineering considerations for Release

1.0 are as follows:

• Since Network Wide Backup & Restore application is coresident with

INM Broadband Release 5.0, the minimal bandwidth for the WAN

communication link is 56 Kbits/sec. The recommended bandwidth is

1.544 Mbits (DS1).

• For an OPC connectivity to the INM and Backup & Restore workstation,

the minimal recommended bandwidth for the communication link is

56 Kbits/sec.

Engineering Capacities

Disk Space Requirements

The disk space required to store controller backups is dependent on the

following:

• number of controllers

• type of controllers

• number of Network Elements which store data on the controller

• number of backups maintained/controller

Following formula can be used to estimate the amount of disk space required

specifically for Network Wide Backup and Restore application.

Disk_space_1 = (# of OPCs) * (5 MByte/OPC) * (# of backups to keep)

Disk_space_2 = (# of NPs) * (1 MByte/NP) * (# of backups to keep)

Disk_space_3 = (# of EC1 MOAs) * (TBD) * (# of backups to keep)

Total_disk_space = Disk_space_1 + Disk_space_2 + Disk_space_3

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Nortel Networks NTNM13XKAB Instrukcja Użytkownika Strona 29