Lucent Technologies MERLIN LEGEND Release 5.0 System Programming And Maintenance Manual page 47

MERLIN LEGEND Communications System Release 5.0
System Programming and Maintenance (SPM) 555-650-140
System Programming and Maintenance
Using SPM
NOTE:
Back up your system programming information on a regular basis. A
current backup file allows you to quickly and easily restore your system, if
the need arises.
Determining the Release Number
of a Backup File
If you have a backup diskette but do not know its release number, you may be
able to find this information in the backup header. Beginning with later versions
of Release 1.1, the backup file contains a backup header 128 bytes long.
Approximately 59 of these bytes are currently used. Bytes 55 through 59 of the
header contain the MERLIN Legend Communication System Release number,
as shown in Table
contain this information in readable form.)
Table 4. Backup Header: Release Number
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
header on a DOS system or
UNIX System.
Note that the communication system release number, not the version number
of SPM, reflects whether the backup file is compressed or uncompressed.
4. (Release 1.0 and early versions of Release 1.1 do not
Release No. Build No.
2 bytes 12 bytes
03 00 32
02 01
cat
System Size
1 byte
01
[ backup filename ] to read the
type
[backup filename ] to read the header on a
Issue 1
June 1997
Page 33
Mode
1 byte
01 - Key
02 - Behind Switch
03 - Hybrid/PBX