前两天是正常的,一个半小时产生120G大小的文件,目前10个小时只产生了20G的文件。现在都是在数据库open readonly 的模式下备份的,目前系统性能消耗非常小,目的存储上测试,拷贝3G文件瞬间拷完。备份语句如下:RMAN> run{
2> allocate channel c1 type disk maxpiecesize 2G;
3> allocate channel c2 type disk maxpiecesize 2G;
4> backup
5>
6> format '/dbfile/assstandby/bak/bk_full_%s_%p_%t'
7> database;
8> release channel c1;
9> release channel c2;
10> allocate channel c3 type disk;
11> backup
12>
13> format '/dbfile/assstandby/bak/bk_arch_%s_%p_%t'
14> archivelog all delete input;
15> release channel c3;
16>
17> allocate channel c5 type disk;
18> backup
19> format '/dbfile/assstandby/bak/bk_control_%s_%p_%t'
20> spfile include current controlfile;
21> release channel c5;
22>
23> delete noprompt obsolete;
24> }
2> allocate channel c1 type disk maxpiecesize 2G;
3> allocate channel c2 type disk maxpiecesize 2G;
4> backup
5>
6> format '/dbfile/assstandby/bak/bk_full_%s_%p_%t'
7> database;
8> release channel c1;
9> release channel c2;
10> allocate channel c3 type disk;
11> backup
12>
13> format '/dbfile/assstandby/bak/bk_arch_%s_%p_%t'
14> archivelog all delete input;
15> release channel c3;
16>
17> allocate channel c5 type disk;
18> backup
19> format '/dbfile/assstandby/bak/bk_control_%s_%p_%t'
20> spfile include current controlfile;
21> release channel c5;
22>
23> delete noprompt obsolete;
24> }
select * from v$flash_recovery_area_usage;