1:1 transfer of BS2000 disk files retains file attributes. A homogeneous interconnection is required for this, in other words the source and target systems must be BS2000 systems.
In the event of1:1 transfer, the file format attributes that remain unchanged include the following:
Blocking factor
Block structure (PAMKEY, DATA, NO)
Record format
Definitions of the ISAM key
Key contents are also sent in 1:1 transfer.
In addition to the file attributes that retain content and structure, file protection attributes (USER-ACCESS, ACCESS, BASIC-ACL, AUDIT, RETENTION-PERIOD), with the exception of passwords and GUARDS rules, can also be transferred to the target file.
With 1:1 transfer it is also possible to store BS2000 files temporarily on non-BS2000 systems and then configure them on BS2000 systems. This corresponds to transfer in Transparent mode in openFT.
- Transfer is not possible if there is a PAMKEY on NK disks or an odd blocking factor on NK4 disks. In these cases you must first of all convert these disks with the PAMCONV utility routine.
- The structure of the transferred files is not revealed. Thus it is not sensible to use code conversion routines implemented with an FTP exit routine, for example. It is recommendable to disable such exit routines during a 1:1 transfer.
- 1:1 transfer of tape files is not supported.
Enable 1:1 transfer
You enable/disable 1:1 transfer as follows:
On the FTP client side using the copymode command (see "copymode - Enable/disable 1:1 transfer of BS2000 disk files").
On the FTP server side using the proprietary command CMOD, which you issue on the FTP client with quote site cmod ...