User`s guide

13-1
6700-A2-GY31-70
July 1999
Hard Disk and System
Recommendations
13
Hard Disk and System Recommendations Overview
This chapter is intended to assist you in managing your hard disk. It contains
guidelines for determining the NMS hard disk free space requirements, the NMS
directory structure, and backup information.
Also described are the start-up and ongoing system resource error dialog boxes
and the recommended corrective action.
Hard Disk Space Requirements
The required NMS hard disk space is the amount of available space within a
single partition after all other software packages (including Microsoft Windows)
have been installed. Refer to Chapter 2,
Installation
, for hard disk requirements.
Functional Requirements
NMS software must be loaded into a single hard disk partition. The required size
varies proportionally with the number of devices in the network, average
occurrence of alerts, and the length of time the records are stored before being
purged.
The following explanations and formulas show the relationships between the
basic functions of NMS and the required disk space. These are only guidelines;
the actual usage may vary slightly.
Installation
NMS requires 20 Mb of disk free space to load.
Call Statistics Detail Records
For each local dial device, allocate 20 bytes per call per day. If you average
200 calls a day (# calls per day), 4000 bytes of space is required per day.
The purge time can be configured between 0 and 90 days (a value of 0
indicates a purge will not be performed).