Comments on: RMAN v$block_change_tracking http://www.oracleonlinux.cn/2010/04/28/rman-vblock_change_tracking/ Oracle and Linux,I Love U. Fri, 30 Dec 2011 07:40:44 -0700 http://wordpress.org/?v=2.8.4 hourly 1 By: Asher http://www.oracleonlinux.cn/2010/04/28/rman-vblock_change_tracking/comment-page-1/#comment-9474 Asher Tue, 28 Dec 2010 04:32:01 +0000 http://www.oracleonlinux.cn/?p=244#comment-9474 补充：启动块跟踪特性之后，会启动一个CTWR后台进程： SYS@orcl>select * from v$block_change_tracking; STATUS FILENAME BYTES ---------- --------------------------------------------- ---------- DISABLED SYS@orcl>!ps -ef | grep ora_ct oracle 27661 22432 0 16:32 pts/3 00:00:00 /bin/bash -c ps -ef | grep ora_ct oracle 27663 27661 0 16:32 pts/3 00:00:00 grep ora_ct SYS@orcl>alter database enable block change tracking using file 2 '/u01/app/oradata/tracking/tracking.file'; Database altered. SYS@orcl>!ps -ef | grep ora_ct oracle 27667 1 0 16:32 ? 00:00:00 ora_ctwr_orcl oracle 27673 22432 0 16:32 pts/3 00:00:00 /bin/bash -c ps -ef | grep ora_ct SYS@orcl>select * from v$block_change_tracking; STATUS FILENAME BYTES ---------- --------------------------------------------- ---------- ENABLED /u01/app/oradata/tracking/tracking.file 11599872 SYS@orcl> 补充：启动块跟踪特性之后，会启动一个CTWR后台进程：
SYS@orcl>select * from v$block_change_tracking;

STATUS FILENAME BYTES
———- ——————————————— ———-
DISABLED

SYS@orcl>!ps -ef | grep ora_ct
oracle 27661 22432 0 16:32 pts/3 00:00:00 /bin/bash -c ps -ef | grep ora_ct
oracle 27663 27661 0 16:32 pts/3 00:00:00 grep ora_ct

SYS@orcl>alter database enable block change tracking using file
2 ‘/u01/app/oradata/tracking/tracking.file’;

Database altered.

SYS@orcl>!ps -ef | grep ora_ct
oracle 27667 1 0 16:32 ? 00:00:00 ora_ctwr_orcl
oracle 27673 22432 0 16:32 pts/3 00:00:00 /bin/bash -c ps -ef | grep ora_ct

SYS@orcl>select * from v$block_change_tracking;

STATUS FILENAME BYTES
———- ——————————————— ———-
ENABLED /u01/app/oradata/tracking/tracking.file 11599872

SYS@orcl>

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