上篇簡單介紹了在11.2中新引入的後臺進程,今天介紹11.2 CRS中的資源。
相當於11.1和10g,11.2的資源也增加了不少。首先在11.2中資源進行了分類:HAS資源和CRS資源。這裏的CRS本身也是屬於HAS的資源,在之前11.1中介紹到的nodeapps(包括vip, ons and gsd),listener,asm,rdbms等在11.2中都是屬於CRS資源,那麼新引入的HAS又包含哪些資源呢?
先簡單學習下查看ohasd和crsd資源的命令:
——————————————————————————–
NAME TARGET STATE SERVER STATE_DETAILS
——————————————————————————–
Cluster Resources
——————————————————————————–
ora.asm
1 ONLINE ONLINE staig07 Started
ora.crsd
1 ONLINE ONLINE staig07
ora.cssd
1 ONLINE ONLINE staig07
ora.cssdmonitor
1 ONLINE ONLINE staig07
ora.ctssd
1 ONLINE ONLINE staig07 ACTIVE:0
ora.diskmon
1 ONLINE ONLINE staig07
ora.drivers.acfs
1 ONLINE ONLINE staig07
ora.evmd
1 ONLINE ONLINE staig07
ora.gipcd
1 ONLINE ONLINE staig07
ora.gpnpd
1 ONLINE ONLINE staig07
ora.mdnsd
1 ONLINE ONLINE staig07
[crsusr@node1 sshsetup]$
這裏簡單說明其中的幾個:
ctssd是11.2新增加的時間同步的資源和進程,是對ntp服務的一種增強。
acfs就是外界廣爲傳說的ASM file system對應的資源。
gpnpd就是11.2最重要的feature,也就是即插即用對應的資源。
mdnsd是對應於SCAN和GNS的資源。
相對於與ohasd的資源,crsd的資源就多了去了。下面簡單看一下:
——————————————————————————–
NAME TARGET STATE SERVER STATE_DETAILS
——————————————————————————–
Local Resources
——————————————————————————–
ora.DATA1.dg
ONLINE ONLINE staig07
ONLINE ONLINE staig10
ONLINE ONLINE staig12
ONLINE ONLINE staig13
ora.DATA2.dg
ONLINE ONLINE staig07
ONLINE ONLINE staig10
ONLINE ONLINE staig12
ONLINE ONLINE staig13
ora.LISTENER.lsnr
ONLINE ONLINE staig07
ONLINE ONLINE staig10
ONLINE ONLINE staig12
ONLINE ONLINE staig13
ora.asm
ONLINE ONLINE staig07 Started
ONLINE ONLINE staig10 Started
ONLINE ONLINE staig12 Started
ONLINE ONLINE staig13 Started
ora.eons
ONLINE ONLINE staig07
ONLINE ONLINE staig10
ONLINE ONLINE staig12
ONLINE ONLINE staig13
ora.gsd
OFFLINE OFFLINE staig07
OFFLINE OFFLINE staig10
OFFLINE OFFLINE staig12
OFFLINE OFFLINE staig13
ora.net1.network
ONLINE ONLINE staig07
ONLINE ONLINE staig10
ONLINE ONLINE staig12
ONLINE ONLINE staig13
ora.ons
ONLINE ONLINE staig07
ONLINE ONLINE staig10
ONLINE ONLINE staig12
ONLINE ONLINE staig13
ora.registry.acfs
ONLINE ONLINE staig07
ONLINE ONLINE staig10
ONLINE ONLINE staig12
ONLINE ONLINE staig13
——————————————————————————–
Cluster Resources
——————————————————————————–
ora.LISTENER_SCAN1.lsnr
1 ONLINE ONLINE staig10
ora.LISTENER_SCAN2.lsnr
1 ONLINE ONLINE staig12
ora.LISTENER_SCAN3.lsnr
1 ONLINE ONLINE staig07
ora.oc4j
1 ONLINE ONLINE staig13
ora.orcldb.db
1 ONLINE ONLINE staig07 Open
2 ONLINE ONLINE staig10 Open
3 ONLINE ONLINE staig12 Open
4 ONLINE ONLINE staig13 Open
ora.scan1.vip
1 ONLINE ONLINE staig10
ora.scan2.vip
1 ONLINE ONLINE staig12
ora.scan3.vip
1 ONLINE ONLINE staig07
ora.staig07.vip
1 ONLINE ONLINE staig07
ora.staig10.vip
1 ONLINE ONLINE staig10
ora.staig12.vip
1 ONLINE ONLINE staig12
ora.staig13.vip
1 ONLINE ONLINE staig13
[crsusr@staig07 sshsetup]$
對於CRSD資源,在11.2中也進行了重新分類,包括cluster-wide範圍的資源,比如SCAN,scan listener, VIP等等,還有一些是local (node-wide)的資源,比如network(注意,11.2把網絡也作爲了一種資源),eons,asm,diskgroup(11.2把ASM diskgroup也作爲了一種資源)等等。
這些資源之間也有相互的依賴關係,比如DG resource依賴於ASM,VIP依賴於network。這些可以從資源的詳細屬性看出,列出資源的詳細屬性,用下面的命令:
crsctl stat res ora.DATA2.dg -p
NAME=ora.DATA2.dg
TYPE=ora.diskgroup.type
ACL=owner:crsusr:rwx,pgrp:oinstall:rwx,other::r–
ACTION_FAILURE_TEMPLATE=
ACTION_SCRIPT=
AGENT_FILENAME=%CRS_HOME%/bin/oraagent%CRS_EXE_SUFFIX%
ALIAS_NAME=
AUTO_START=never
CHECK_INTERVAL=300
CHECK_TIMEOUT=600
DEFAULT_TEMPLATE=
DEGREE=1
DESCRIPTION=CRS resource type definition for ASM disk group resource
ENABLED=1
LOAD=1
LOGGING_LEVEL=1
NLS_LANG=
NOT_RESTARTING_TEMPLATE=
OFFLINE_CHECK_INTERVAL=0
PROFILE_CHANGE_TEMPLATE=
RESTART_ATTEMPTS=5
SCRIPT_TIMEOUT=60
START_DEPENDENCIES=hard(ora.asm) pullup(ora.asm)
START_TIMEOUT=900
STATE_CHANGE_TEMPLATE=
STOP_DEPENDENCIES=hard(intermediate:ora.asm)
STOP_TIMEOUT=180
UPTIME_THRESHOLD=1d
USR_ORA_ENV=
USR_ORA_OPI=false
USR_ORA_STOP_MODE=
VERSION=11.2.0.1.0
[crsusr@staig07 sshsetup]$
這裏可以看出,DG2有一個hard依賴於asm,並有一個pullup關係。關於start、stop依賴關係以及資源的屬性,以後在做介紹。