Lucent Technologies MERLIN LEGEND Release 5.0 System Programming Manual page 109

MERLIN LEGEND Communications System Release 5.0
System Programming 555-650-111
2 Programming with SPM
Using SPM
header contain the MERLIN Legend Communication System Release number, as
shown in
this information in readable form.)
Table 2-4.
Size
Examples
The release number is found in the first two bytes (four characters) of the
identification number. For example, 0300 = 3.0, 0201 = 2.1.
If the backup file is compressed, you can read the header but you cannot read the
data area following the header. Use
a DOS system or
Note that the communication system release number, not the version number of
SPM, reflects whether the backup file is compressed or uncompressed. Release
1.0 backups are uncompressed and Release 1.1 and later backups are
compressed. Uncompressed files take longer to restore.
Considerations
Review the following items before you begin the backup procedure:
The communications system does not have to be idle during backup;
however, extension programming is blocked.
Any objects that are in a maintenance-busy state are stored in that state.
When you restore system programming, these objects are busied out, even
if they have since been released from the maintenance-busy state.
If you plan to store your backup file on a diskette, format a DOS diskette.
(DOS formatting can be done on either a UNIX System PC or a DOS PC).
Uncompressed backup files are 100,000 to 210,000 bytes in size;
compressed files are about 70,000 to 85,000 bytes.
Maintenance data (error logs and other data used by qualified service
technicians) is not saved in the backup file.
Follow the steps below to perform the backup procedure.
Table 2-4. (Release 1.0 and early versions of Release 1.1 do not contain
Backup Header: Release Number
Release No.
2 bytes
03 00
02 01
[backup filename ] to read the header on a UNIX System.
cat
Build No. System Size
12 bytes 1 byte
32 01
[ backup filename ] to read the header on
type
Issue 1
June 1997
Page 2-25
Mode
1 byte
01 - Key
02 - Behind Switch
03 - Hybrid/PBX
2