Database Management
Humphrey Field Analyzer II-
i
series User Manual 2660021145640 A
11-2
Note: The HFA is only compatible with USB storage devices formatted in FAT (FAT16) or FAT32. NTFS
or exFAT (FAT64) cannot be used and will report an “Unrecognized format” error. Also, the HFA can
only see and access the first partition of the USB storage device.
Note: Some USB hard drives may require connection to two USB ports or their own external power
supply to work correctly.
Note: An optional USB floppy disk drive should only be used for backwards compatibility. It is highly
recommended to use USB storage devices instead of floppy disks. Floppy disks may not be available
in the near future.
Introduction to Database Management
Database errors are inevitable. Human error, power surges, temperature changes, and mechanical
failure can disrupt the proper operation of removable media, and prevent you from successfully
saving or retrieving data. The information on removable media can be damaged by static electricity
and strong magnets.
Database management is not difficult and should not
consume much time. Carl Zeiss Meditec
strongly recommends that all HFA customers make extra copies of their patient database and setup
configurations. In the event of a database problem, and you need to restore your database, you will
have the solution at hand.
For the sake of simplicity, this manual separates database management
into two categories:
functions which manipulate data (Copy Tests, Delete Tests, and Change Patient Data, for example),
and functions which preserve database integrity (Backup Configuration, Rebuild Hard Disk
Database, etc.). This chapter discusses preserving database integrity. For additional information on
the other database management functions listed below, refer to Chapter (10), "File Functions."
Database Integrity Functions
Functions associated with preserving database integrity can be found on both the File Functions
and Additional Setup
Menus. These functions are outlined below.
On the File Functions Menu
Creates an exact copy of a floppy disk; used for duplicating patient d
atabase information onto
additional floppy disks.
Backup: Creates a restorable file from patient files on the hard
disk and is saved to a USB storage
device or a network file server.
Restore: Restores patient files from a USB storage device, a network file server, or floppy disks to the
hard drive. Used in the event of a hard disk failure
. The Source and Destination you choose
determines whether you are backing up or restoring data.
Provides information on the number of tests and the number of patients found on the hard drive
and floppy disk databases. It can also ident
ify a backup floppy disk (refer to Chapter (10), "File
Functions").
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