Experience: is what you get soon after you need it.

Experience: is what you get soon after you need it.

Rasul Allah (sal Allahu alaihi wa sallam) said: "Restore the trusts of those who trust you, and deal not falsely with him who deals falsely with you." [Abu Dawud, Tirmidhi]

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Sunday, April 18, 2010

Backup Job Speed

Query the V$RMAN_BACKUP_JOB_DETAILS view for the rate of backup jobs in an
RMAN session.

The following query shows the backup job speed ordered by session key, which is
the primary key for the RMAN session. The columns in_sec and out_sec
display the data input and output per second.
COL in_sec FORMAT a10
COL out_sec FORMAT a10
COL TIME_TAKEN_DISPLAY FORMAT a10
SELECT SESSION_KEY,
OPTIMIZED,
COMPRESSION_RATIO,
INPUT_BYTES_PER_SEC_DISPLAY in_sec,
OUTPUT_BYTES_PER_SEC_DISPLAY out_sec,
TIME_TAKEN_DISPLAY
FROM V$RMAN_BACKUP_JOB_DETAILS
ORDER BY SESSION_KEY;
The following sample output shows the speed of the backup jobs:
SESSION_KEY OPT COMPRESSION_RATIO IN_SEC OUT_SEC TIME_TAKEN
----------- --- ----------------- ---------- ---------- ----------
9 NO 1 8.24M 8.24M 00:01:14
16 NO 1.3273 6.77M 5.10M 00:01:45
113 NO 1 2.99M 2.99M 00:00:44

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