如何开启/关闭归档
如果開啟歸檔,請(qǐng)保證
log_archive_start=true開啟自動(dòng)歸檔,否則只能手工歸檔,如果是關(guān)閉了歸檔,則設(shè)置該參數(shù)為false.
log_archive_dest =archivelog存放路徑---歸檔日志存放路徑
log_archive_format =CX%TS%S.ARC ---歸檔日志文件名格式
注意:如果是OPS/RAC環(huán)境,需要先把parallel_server = true注釋掉,然后執(zhí)行如下步驟,最后用這個(gè)參數(shù)重新啟動(dòng)?
1、開啟歸檔?
a. 關(guān)閉數(shù)據(jù)庫(kù)shutdown immediate?
b. startup mount?
c. alter database archivelog?
d. alter database opne?
2、禁止歸檔?
a. 關(guān)閉數(shù)據(jù)庫(kù)shutdown immediate?
b. startup mount?
c. alter database noarchivelog?
d. alter database open?
歸檔信息可以通過如下語句查看?
SQL> archive log list?
Database log mode Archive Mode?
Automatic archival Enabled?
Archive destination E:oracleora92databasearchive?
Oldest online log sequence 131?
Next log sequence to archive 133?
Current log sequence 133
?2)RAC模式下
1.關(guān)閉所有的instance?
2.在節(jié)點(diǎn)1上設(shè)置以下參數(shù),如果使用spfile就先生成pfile再修改
CLUSTER_DATABASE=FALSE.?
log_archive_dest=歸檔路徑?
log_archive_start=true?
log_archive_format=歸檔文件格式?
3. 以exclusive模式啟動(dòng)數(shù)據(jù)庫(kù)
SQL> startup mount exclusive pfile=‘xxxxxx’.?
4. 啟動(dòng)歸檔模式?
SQL> Alter database archivelog?
5.打開數(shù)據(jù)庫(kù)?
SQL> alter database open?
6.關(guān)閉數(shù)據(jù)庫(kù)并修改初始化參數(shù)?
SQL> shutdown immediate
CLUSTER_DATABASE=TRUE?
7.啟動(dòng)所有的instance,記得先生成spfile?
8.核對(duì)歸檔,模式是否啟動(dòng)?
SQL> archive log list
相關(guān)數(shù)據(jù)字典
V$ARCHIVED_LOG
V$ARCHIVE_DEST
V$LOG_HISTORY
V$DATABASE
總結(jié)
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