Data on Net-Storage can be saved like local BS2000 data by means of ARCHIVE. In BS2000 V21.0A and higher in addition to Net-Storage volumes of type NETSTOR, the Net-Storage volumes of type NETVOL are supported. For more details refer to the manual “Introductory Guide to DMS” [2]. Unless otherwise specified explicitly, the term "Net-Storage" refers to both volume types NETSTOR and NETVOL within the chapter.
The user interface has not been extended, i.e. no additional operands have been introduced. But it is possible to specify NETSTOR as a value for the DEVICE operand. In BS2000 V21.0A it is also possible to specify NETVOL for the DEVICE operand.
If applicable the system administrator can suppress the backup of data from Net-Storage, thus the parameter STORAGE-TYPE has been provided in the parameter file
SYSPAR.ARCHIVE.<ver>:
* * STORAGE-TYPE | ANY / PUBLIC-SPACE * *
STORAGE-TYPE=ANY
Saving:
If the FROM statement not specified in the FILES statement, all files are saved which are specified with the NAME operand for all pubsets, private disks and Net-Storage. Also the catalog entries of files on magnetic tape cartridges are saved. If FROM = PUBLIC is specified, only those files are saved which are specified in the NAME operand and which are on public disk and on the Net-Storage.Reconstruction:
If the TO operand is missing in the FILES statement, the files are then reconstructed to their original data media. With TO=PUBLIC all files, including the files from private disks, are reconstructed to public disk while files from Net-Storage are restored on Net-Storage again. Files on Net-Storage are classified as public files. Net-Storage files originally stored on volume of NETVOL type can be restored only on BS2000 V21.0A or higher.
STORAGE-TYPE=PUBLIC-SPACE
- Saving:
Data is only saved from public disk, it is not saved from Net-Storage. The system administrator must ensure data security by backing up the file server by a different way. - Reconstruction:
All files are reconstructed on the disks of the specified pubset, nevertheless from which media the files have been saved.
Restrictions for Net-Storage SAM node files
SAM node files enable the interoperability between BS2000 and open systems for text based processing. They are located in user specific directories on a Net-Storage volume. For details see manual „Introductory Guide to DMS“ [2].
In ARCHIVE no additional operands or operand values are introduced. Accordingly, SAM node files can be selected like other files which are located on Net-Storage. Extensions are introduced in HSMS.
In ARCHIVE SAM node files are saved without SAM structure. A new save type FNOD was introduced in ARCHIVE V11.0 for denoting SAM node files saved without SAM structure.
It is not possible to restore SAM node files to private disks, public space or to a Net-Storage file with file type BS2000, if SAM structure was not saved. During a restore run to a non Net-Storage device SAM node files, which were saved without SAM structure, are ignored with the new error message ARC0519.
It is possible to restore SAM node files to public space or to Net-Storage, if ARCHIVE works with a directory, which was used in HSMS during a save run with SAM node files with SAM structure (FULL save type).