HP A.06.11 - Manual (Page 87)

2. Allocate the Oracle channels.
Allocating a channel tells RMAN to initiate an Oracle Server process for backup,
restore, or recovery on the Oracle target database. For example:
allocate channel 'dev_0' type 'disk';
or
allocate channel 'dev_1' type 'sbt_tape';
where you specify the backup directly to disk in the first case and directly to
tape in the second case.
To use Data Protector backup media, specify the channel type SBT_TAPE. For
this channel type, RMAN needs the Data Protector MML:
• On OpenVMS clients with, ensure that a symbolic link to the Data Protector
MML exists.
• On Windows and UNIX clients, specify the path to the Data Protector MML
at run time by setting the SBT_LIBRARY RMAN script parameter. For details,
see
Step 3 on page 88.
If you specify more than a single allocate channel command, RMAN will
establish multiple logon sessions and conduct multiple backup sets in parallel.
This “parallelization” of backup and restore commands is handled internally by
RMAN.
IMPORTANT:
On Windows, a maximum of 32 or 64 (if device is local) channels can be
allocated.
Integration guide for Oracle and SAP 87