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本篇內(nèi)容主要講解“如何進(jìn)行ASM磁盤組擴(kuò)展”,感興趣的朋友不妨來(lái)看看。本文介紹的方法操作簡(jiǎn)單快捷,實(shí)用性強(qiáng)。下面就讓小編來(lái)帶大家學(xué)習(xí)“如何進(jìn)行ASM磁盤組擴(kuò)展”吧!
今天登錄EM(虛擬機(jī)練習(xí)環(huán)境), 提示EM關(guān)閉狀態(tài),查看數(shù)據(jù)庫(kù),發(fā)現(xiàn)實(shí)例沒啟動(dòng)。
startup 時(shí)提示 ORA-03113: end-of-file on communication channel
產(chǎn)看alter log中發(fā)現(xiàn)如下錯(cuò)誤
-------------------------------------------------------------------
ARC0: Error 19504 Creating archive log file to '+DATA'
Errors in file /u01/app/oracle/diag/rdbms/ocpasm1/OCPASM1/trace/OCPASM1_arc1_11472.trc:
ORA-19816: WARNING: Files may exist in db_recovery_file_dest that are not known to database.
ORA-17502: ksfdcre:4 Failed to create file +DATA
ORA-15041: diskgroup "DATA" space exhausted
--------------------------------------------------------------------
startup mount 后 確認(rèn)DATA group剩余空間不足:
SQL> select group_number,name,state,total_mb,free_mb from v$asm_diskgroup;
GROUP_NUMBER NAME STATE TOTAL_MB FREE_MB
------------ ---------- ---------------------- ---------- ----------
1 DATA MOUNTED 4000 6
2 FRA MOUNTED 3000 2946
3 OCR MOUNTED 3000 1880
于是查詢asm vg 發(fā)現(xiàn)還有剩余空間,太好了可以擴(kuò)展
[root@OCPLHR ~]# vgdisplay
--- Volume group ---
VG Name vg_oraasm
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 2
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 1
Open LV 1
Max PV 0
Cur PV 1
Act PV 1
VG Size 15.00 GB
PE Size 4.00 MB
Total PE 3839
Alloc PE / Size 3584 / 14.00 GB
Free PE / Size 1020 / 1020.00 MB
VG UUID QHMkJt-XJfQ-gL9a-antn-6jfJ-OOdH-3vSll1
--------------------------
于是添加磁盤并擴(kuò)展DATA group:
dd if=/dev/zero of=/asmdisk/disk9 bs=1024k count=1000
/sbin/losetup /dev/loop9 /asmdisk/disk9
raw /dev/raw/raw9 /dev/loop9
chmod 660 /dev/raw/raw9
chown oracle:dba /dev/raw/raw9
grid>sqlplus / as sysasm
alter diskgroup DATA add disk '/dev/raw/raw9';
select operation,est_minutes from v$asm_operation; #確認(rèn)冗余平衡完成
重啟數(shù)據(jù)庫(kù)后,數(shù)據(jù)庫(kù)恢復(fù)正常。
SQL> select name,group_number,state,redundancy,total_mb,free_mb,path from v$asm_disk;
NAME GROUP_NUMBER STATE REDUNDANCY TOTAL_MB FREE_MB PATH
---------- ------------ ---------------- -------------- ---------- ---------- ------------------------------
FRA_0002 2 NORMAL UNKNOWN 1000 981 /dev/raw/raw8
FRA_0001 2 NORMAL UNKNOWN 1000 983 /dev/raw/raw7
FRA_0000 2 NORMAL UNKNOWN 1000 982 /dev/raw/raw6
DATA_0002 1 NORMAL UNKNOWN 1000 223 /dev/raw/raw5
DATA_0001 1 NORMAL UNKNOWN 1000 214 /dev/raw/raw4
DATA_0000 1 NORMAL UNKNOWN 1000 220 /dev/raw/raw3
OCR_0001 3 NORMAL UNKNOWN 1000 940 /dev/raw/raw2
OCR_0000 3 NORMAL UNKNOWN 1000 940 /dev/raw/raw1
DATA_0003 1 NORMAL UNKNOWN 1000 248 /dev/raw/raw9
最后發(fā)現(xiàn) EM沒啟動(dòng)
emctl status dbconsole
Oracle Enterprise Manager 11g Database Control Release 11.2.0.3.0
Copyright (c) 1996, 2011 Oracle Corporation. All rights reserved.
https://OCPLHR:1158/em/console/aboutApplication
Oracle Enterprise Manager 11g is not running.
手動(dòng)啟動(dòng)EM:
emctl start dbconsole
Oracle Enterprise Manager 11g Database Control Release 11.2.0.3.0
Copyright (c) 1996, 2011 Oracle Corporation. All rights reserved.
https://OCPLHR:1158/em/console/aboutApplication
Starting Oracle Enterprise Manager 11g Database Control ..... started.
Logs are generated in directory /u01/app/oracle/product/11.2.0/dbhome_1/OCPLHR_OCPASM1/sysman/log。
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