Component : Database Administration with Oracle -

Solution : https://service.sap.com/sap/support/notes/8707 (SAP Service marketplace login required)

Summary :
During database backup, cpio encounters the physical tape end, outputting messages like "End of volume" and prompts for device/file name. This occurs because the init.sap parameter tape_size is set too large or hardware compression parameters are incorrectly defined. To fix this, tape_size should reflect uncompressed capacity. For units with hardware compression, avoid specifying logical tape sizes; account for error margins in compression rate estimation. Ensure correct driver configurations in tape_address and tape_address_rew. For hardware-compressed tape stations, deactivate compression and perform a backup to determine actual tape_size from the BR063I message. Adjust values based on changes or errors.

Key words :
9000m              8000m   dlt 2000xt  15/30 gb          14000m            13000m   dlt 4000    20/40 gb, tape_address = /dev/rmt/0hntape_address_rew = /dev/rmt/0hinstead, tape_address = /dev/rmt/0hnctape_address_rew = /dev/rmt/0hc, 9000m              8000m   dlt 2000    10/20 gb, 19000m             18000m   dlt 7000    35/70 gb, 700m              500m   3590 ibm-band, dat-band/4 mm dds-3, brbackup parameter tape_size tape units, 4500m              4300m   3490 ibm tape, dat tape/4 mm dds-1

Related Notes :

540543	Composite SAP note: dd errors when calling in BR tools
43494	Collective note: BRBACKUP, BRARCHIVE, BRRESTORE