opsi Version 3.3.1 - opsi Download - uib

9.3. MySQL-backend for inventory data
9.3.1. overview and datastructure
9. opsi data storage (backend)
Inventory data is stored in structured text files by default. This type of storage is not very
useful if you wish to form free queries on these data. In order to allow free queries and
reports a mysql based backend for the inventory data has been introduced.
The main characteristics of this backend are:
● only for inventory data (up to now)
● optional (not the default backend)
● a very fine granulated data structure with an additional table to make queries
easier.
● a history function which tracks changes in the inventory.
The MySQL based backend for the inventory data exists since opsi 3.3. Regarding the
very different structure of the components in the inventory the resulting datastructure is
complex.
The table 'hosts' comprises all known hosts. For every device type we use two tables:
The HARDWARE_DEVICE_ .table describes the model without individual aspects like
the serial number. The HARDWARE_CONFIG table stores these individual and
configuration data.
These both tables are connected via the field hardware_id. This is the resulting list of
tables:
HARDWARE_CONFIG_1394_CONTROLLER
HARDWARE_CONFIG_AUDIO_CONTROLLER
HARDWARE_CONFIG_BASE_BOARD
HARDWARE_CONFIG_BIOS
HARDWARE_CONFIG_CACHE_MEMORY
HARDWARE_CONFIG_COMPUTER_SYSTEM
HARDWARE_CONFIG_DISK_PARTITION
HARDWARE_CONFIG_FLOPPY_CONTROLLER
HARDWARE_CONFIG_FLOPPY_DRIVE
HARDWARE_CONFIG_HARDDISK_DRIVE
HARDWARE_CONFIG_IDE_CONTROLLER
HARDWARE_CONFIG_KEYBOARD
HARDWARE_CONFIG_MEMORY_BANK
HARDWARE_CONFIG_MEMORY_MODULE
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