Job Management Partner 1/Asset Information Manager Planning and Setup Guide

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Appendix C.2 Disk space requirements

The amount of disk space required to run the asset management system is derived from the total disk space required for the asset management database and for the asset management server.

This appendix provides formulas for estimating the required disk space.

Note
For the database's block size, Hitachi recommends that you specify 8 kilobytes or greater, taking performance into account. For details about the setup method, see your DBMS documentation.
Organization of this subsection
(1) Disk space required for the asset management database
(2) Disk space required for the asset management server

(1) Disk space required for the asset management database

Size of database
= ([Figure] (size of information to be used [Figure] number of items) + (amount of data for license total) + (amount of data for operation log total) + (amount of Item data) + (amount of definition data)) [Figure] 1.4 [Figure] 1.5

[Figure] Size of the information to be used
The following table provides guidelines for size of information to be used.

Table C-1 Size of each information item

Information to be used Size per item (kilobytes)
Hardware information#1 52.1
Software information#2 28.2
Device catalog 0.5
Maintenance contract information 1.3
Lease contract information 1.3
Rental contract information 1.3
Company catalog 0.9
Software list 0.4
Installed software list 0.4
Patch list 0.2
IP group information 0.8
IP address control information#3 0.3
Location information 1.2
User information 0.8
Group information 1.0
Role information 0.4
Official authority 0.3
Device change log 0.8
Software update log 0.4
Volume contract information 0.8
Maintenance log 2.6
#1
This estimate assumes that the following information is included:
  • 1 asset information item (2.7 kilobytes)
  • 1 hardware information item (1.4 kilobytes)
  • 3 network information items (0.6 kilobytes per item)
  • 20 transfer log entries (1.2 kilobytes per entry)
  • 60 installed software information items (0.3 kilobytes per item)
  • 10 patch information items (0.1 kilobytes per item)
  • 1 virus definition information item (0.5 kilobytes)
  • 1 component information item (0.3 kilobytes)
  • 1 inventory information item (2.0 kilobytes)
#2
This estimate assumes that the following information is included:
  • 1 asset information item (2.7 kilobytes)
  • 1 software information item (0.1 kilobytes)
  • 50 software key information items (0.5 kilobytes per item)
  • 1 license information item (0.4 kilobytes)
#3
As many IP address control information items as the total number of IP addresses available within the address range registered for the IP group information are required.
Note
The size of each information item to be used is based on the following conditions:
  • Data is set only for items (including user properties) that can be set by GUI operations or when inventory information is imported. The average size of the values to be set is assumed to be 30 bytes. If the data size is less than 30 bytes, the size of the managed area is assumed.
  • For items that cannot be set by GUI operations or when inventory information is imported, only the size of the managed area is assumed.
  • The asset information and maintenance contract information associate one or more device information items.

[Figure] amount of data for license total
= ([Figure] + [Figure]) [Figure] number of times licenses totaled (kilobytes)
[Figure] = average number of software assets owned by one group [Figure] number of groups [Figure] 0.5
[Figure] = average number of software assets that have been installed on a device [Figure] number of devices [Figure] 0.5
This formula assumes that one software product requires 0.5 kilobytes of space.

[Figure] amount of data for operation log total
= number of patterns used for summing [Figure] number of days for retaining totaled results [Figure] number of groups [Figure] 0.4 (kilobytes)
This formula assumes that the capacity of totaled results for each group per day is 0.4 kilobytes for each search pattern.

[Figure] Amount of Item data
= (size of defined Item [Figure] number of defined Items registered) + (amount of data required for Item management [Figure] number of Items requested)
Size of defined Item: 150 kilobytes
Amount of data required for Item management: 4.0 kilobytes
The size of a defined Item shown here is an average over the provided four Item templates. The actual size of a defined Item depends on the numbers of activities and Items that are to be defined.

[Figure] Amount of definition data
= 30.0 megabytes

The index area requires about 40% of the table size. For details about how to determine the size of the index area, see the DBMS documentation.

To achieve efficient access to the asset management database, a free space of about 50% of the table size is required.

(2) Disk space required for the asset management server

Size required for server
= size of data obtained as search results [Figure] average number of searches per login [Figure] average number of concurrent logins

To upload a file as an attached file using a window operation, treat the size of the attached file as part of the disk capacity.