Can one export directly to a tape drive?
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One can use a tape device name instead of a normal file name. When using a device, one also needs to specify the VOLSIZE= parameter. Look at this example:
exp userid/password file=/dev/rmt0 table=emp volsize=1.2G
Note: The volume size is a number ending with a “m”, “k”, or “b” (M, K, or B). The default is bytes.
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Can one archive directly to tape?
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Yes, set log_archive_dest = /dev/rmt0:100M in your INIT.ORA file and recycle the database.
You can also use ARCHMON (when available) which communicates with the ARCH background process. When the end of tape is reached, ARCH stops and signals ARCHMON to prompt the user for a new tape. When ARCHMON detects the new tape, it tells the ARCH process to resume the archiving operation. ARCMON requires regular operator monitoring and intervention.
$ archmon @P:TEST