Oracle Study之-AIX6.1构建Oracle 10gR2 RAC(2)
一、查看系统I/O(对于Oracle数据库需启用异步I/O)
对于AIX6.1，默认异步I/O在有需求时，自动被激活，不需要配置。
[root@aix203 /]#ioo -a |grep aio
aio_active = 0 aio_maxreqs = 65536 aio_maxservers = 30 aio_minservers = 3 aio_server_inactivity = 300 posix_aio_active = 0 posix_aio_maxreqs = 65536 posix_aio_maxservers = 30 posix_aio_minservers = 3 posix_aio_server_inactivity = 300
二、配置节点间的主机信任关系：
[root@aix203 /]#cat /etc/hosts.equiv aix203 root aix204 root aix203-vip root aix204-vip root aix203-priv root aix204-priv root aix203 oracle aix204 oracle aix203-vip oracle aix204-vip oracle aix203-priv oracle aix204-priv oracle [root@aix203 /]#cat .rhosts aix203 root aix204 root aix203-vip root aix204-vip root aix203-priv root aix204-priv root aix203 oracle aix204 oracle aix203-vip oracle aix204-vip oracle aix203-priv oracle aix204-priv oracle [oracle@aix203 ~]$cat .rhosts aix203 root aix204 root aix203-vip root aix204-vip root aix203-priv root aix204-priv root aix203 oracle aix204 oracle aix203-vip oracle aix204-vip oracle aix203-priv oracle aix204-priv oracle
验证主机信任关系：
[oracle@aix203 ~]$rsh aix204 date
Tue Mar 15 16:18:47 CDT 2016
[oracle@aix203 ~]$rsh aix204-priv date
Tue Mar 15 16:18:50 CDT 2016
[oracle@aix204 ~]$rsh aix203 date
Tue Mar 15 16:17:12 CDT 2016
[oracle@aix204 ~]$rsh aix203-priv date
Tue Mar 15 16:18:26 CDT 2016
三、配置时间同步（NTP)
NTP SERVER：
[root@aix203 /]#cat /etc/ntp.conf
# Default NTP configuration file.
# Broadcast client, no authentication.
broadcastclient
driftfile /etc/ntp.drift
tracefile /etc/ntp.trace
server 127.127.1.0
NTP CLIENT:
[root@aix204 /]#cat /etc/ntp.conf
# Default NTP configuration file.
#
# Broadcast client, no authentication.
#
#broadcastclient
driftfile /etc/ntp.drift
tracefile /etc/ntp.trace
server 192.168.8.203
启动ntp services：
[root@aix203 /]#smit xntpd ；；启动ntp service
[root@aix203 /]#l***c -ls xntpd
Program name: /usr/sbin/xntpd Version: 3 Leap indicator: 11 (Leap indicator is insane.) Sys peer: no peer, system is insane Sys stratum: 16 Sys precision: -17 Debug/Tracing: DISABLED Root distance: 0.000000 Root dispersion: 0.000000 Reference ID: no refid, system is insane Reference time: no reftime, system is insane Broadcast delay: 0.003906 (sec) Auth delay: 0.000122 (sec) System flags: bclient pll monitor filegen System uptime: 5 (sec) Clock stability: 0.000000 (sec) Clock frequency: 0.000000 (sec) Peer: 127.127.1.0 flags: (configured)(refclock) stratum: 3, version: 3 our mode: client, his mode: server Subsystem Group PID Status xntpd tcpip 3604550 active
四、配置node间私有网络传输参数
[root@aix203 /]#lsattr -El sys0 -a pre520tune
pre520tune disable Pre-520 tuning compatibility mode True
[root@aix203 /]#no -a |grep tcp
hstcp = 0 tcp_bad_port_limit = 0 tcp_cwnd_modified = 0 tcp_ecn = 0 tcp_ephemeral_high = 65535 tcp_ephemeral_low = 32768 tcp_fastlo = 0 tcp_fastlo_crosswpar = 0 tcp_finwait2 = 1200 tcp_icmpsecure = 0 tcp_init_window = 0 tcp_inpcb_hashtab_siz = 24499 tcp_keepcnt = 8 tcp_keepidle = 14400 tcp_keepinit = 150 tcp_keepintvl = 150 tcp_limited_transmit = 1 tcp_low_rto = 0 tcp_maxburst = 0 tcp_mssdflt = 1460 tcp_nagle_limit = 65535 tcp_nagleoverride = 0 tcp_ndebug = 100 tcp_newreno = 1 tcp_nodelayack = 0 tcp_pmtu_discover = 1 tcp_recvspace = 16384 tcp_sendspace = 16384 tcp_tcpsecure = 0 tcp_timewait = 1 tcp_ttl = 60 tcprexmtthresh = 3 tcptr_enable = 0
[root@aix203 /]#no -a |grep udp
udp_bad_port_limit = 0 udp_ephemeral_high = 65535 udp_ephemeral_low = 32768 udp_inpcb_hashtab_siz = 24499 udp_pmtu_discover = 1 udp_recvspace = 42080 udp_sendspace = 9216 udp_ttl = 30 udpcksum = 1
配置脚本：
[root@aix203 /]#cat chnet.sh
no -r -o ipqmaxlen=512
no -p -o rfc1323=1
no -p -o sb_max=1310720
no -p -o tcp_recvspace=65536
no -p -o tcp_sendspace=65536
no -p -o udp_recvspace=655360
no -p -o udp_sendspace=65536
[root@aix203 /]#sh chnet.sh
Setting ipqmaxlen to 512 in nextboot file Warning: changes will take effect only at next reboot Setting rfc1323 to 1 Setting rfc1323 to 1 in nextboot file Change to tunable rfc1323, will only be effective for future connections Setting sb_max to 1310720 Setting sb_max to 1310720 in nextboot file Setting tcp_recvspace to 65536 Setting tcp_recvspace to 65536 in nextboot file Change to tunable tcp_recvspace, will only be effective for future connections Setting tcp_sendspace to 65536 Setting tcp_sendspace to 65536 in nextboot file Change to tunable tcp_sendspace, will only be effective for future connections Setting udp_recvspace to 655360 Setting udp_recvspace to 655360 in nextboot file Change to tunable udp_recvspace, will only be effective for future connections Setting udp_sendspace to 65536 Setting udp_sendspace to 65536 in nextboot file Change to tunable udp_sendspace, will only be effective for future connections
------ 未完，待续 ！
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