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RAC维护
1.查看服务状态（gsd 是为了兼容9i，10G以后不再启动，忽略offline）
#su - grid
$crs_stat -t
Name Type Target State Host
ora.DATA.dg ora....up.type ONLINE ONLINE rac1
ora.FRA.dg ora....up.type ONLINE ONLINE rac1
ora....ER.lsnr ora....er.type ONLINE ONLINE rac1
ora....N1.lsnr ora....er.type ONLINE ONLINE rac1
ora.OCR.dg ora....up.type ONLINE ONLINE rac1
ora.asm ora.asm.type ONLINE ONLINE rac1
ora.cvu ora.cvu.type ONLINE ONLINE rac1
ora.gsd ora.gsd.type OFFLINE OFFLINE
ora....network ora....rk.type ONLINE ONLINE rac1
ora.oc4j ora.oc4j.type ONLINE ONLINE rac1
ora.ons ora.ons.type ONLINE ONLINE rac1
ora.orcl.db ora....se.type ONLINE ONLINE rac1
ora....SM1.asm application ONLINE ONLINE rac1
ora....C1.lsnr application ONLINE ONLINE rac1
ora.rac1.gsd application OFFLINE OFFLINE
ora.rac1.ons application ONLINE ONLINE rac1
ora.rac1.vip ora....t1.type ONLINE ONLINE rac1
ora....SM2.asm application ONLINE ONLINE rac2
ora....C2.lsnr application ONLINE ONLINE rac2
ora.rac2.gsd application OFFLINE OFFLINE
ora.rac2.ons application ONLINE ONLINE rac2
ora.rac2.vip ora....t1.type ONLINE ONLINE rac2
ora.scan1.vip ora....ip.type ONLINE ONLINE rac1
2.检查集群状态
$srvctl status database -d orcl
Instance orcl1 is running on node rac1
Instance orcl2 is running on node rac2
3.检查CRS状态
本地
$crsctl check crs
CRS-4638: Oracle High Availability Services is online
CRS-4537: Cluster Ready Services is online
CRS-4529: Cluster Synchronization Services is online
CRS-4533: Event Manager is online
集群
$ crsctl check cluster
CRS-4537: Cluster Ready Services is online
CRS-4529: Cluster Synchronization Services is online
CRS-4533: Event Manager is online
4.查看集群中节点配置信息
$ olsnodes
rac1
rac2
$ olsnodes -n
rac1 1
rac2 2
$ olsnodes -n -i -s -t
rac1 1 rac1-vip Active Unpinned
rac2 2 rac2-vip Active Unpinned
5.查看集群件的表决磁盘信息
.$ crsctl query css votedisk
STATE File Universal Id File Name Disk group
1. ONLINE 496abcfc4e214fc9bf85cf755e0cc8e2 (/dev/raw/raw1) [OCR]
Located 1 voting disk(s). （编辑：ASP站长）
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