1Z0-062 · Question #93
Tape streaming is not happening while performing RMAN tape backup. On investigation, you find that it is not because of the incremental backup or the empty file backup and that RMAN is sending data bl
The correct answer is C. Configure the channel to increase the capacity with the RATE parameter. RATE Channel Parameter In the ALLOCATE and CONFIGURE CHANNEL commands, the RATE parameter specifies the bytes per second that are read on a channel. You can use this parameter to set an upper limit for bytes read so that RMAN does not consume excessive disk bandwidth and degrade
Question
Tape streaming is not happening while performing RMAN tape backup. On investigation, you find that it is not because of the incremental backup or the empty file backup and that RMAN is sending data blocks to the tape drive fast enough. What could be a solution to make tape streaming happen during the backup?
Options
- AConfigure backup optimization
- BConfigure the channel to increase MAXOPENFILES
- CConfigure the channel to increase the capacity with the RATE parameter
- DConfigure the channel to adjust the tape buffer size with the BLKSIZE option
How the community answered
(41 responses)- A5% (2)
- B10% (4)
- C71% (29)
- D15% (6)
Explanation
RATE Channel Parameter In the ALLOCATE and CONFIGURE CHANNEL commands, the RATE parameter specifies the bytes per second that are read on a channel. You can use this parameter to set an upper limit for bytes read so that RMAN does not consume excessive disk bandwidth and degrade online performance. Essentially, RATE serves as a backup throttle. For example, if you set RATE 1500K, and if each disk drive delivers 3 megabytes per second, then the channel leaves some disk bandwidth available to the online system.
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