11gR2 GI总结(二)-11gR2 Grid Infrastructure Redundant Interconnect and ora.cluster_interconnect.haip
CVU(Cluster Verification Utility)是一个非常有用的工具：
1.checks operating system versions and patches.
2.kernel parameters.
3.user limits.
4.operating system groups and users.
5.secure shell configuration.
5.networking configuration.
6.shared storage device.
Valid Stages are:
-pre crsinst : pre-check for CRS installation
-pre acfscfg : pre-check for ACFS Configuration.
-pre dbinst : pre-check for database installation
-pre dbcfg : pre-check for database configuration
-pre hacfg : pre-check for HA configuration
-pre nodeadd : pre-check for node addition.
-post hwos : post-check for hardware and operating system
-post crsinst : post-check for CRS installation
-post acfscfg : post-check for ACFS Configuration.
-post hacfg : post-check for HA configuration
-post nodeadd : post-check for node addition.
-post nodedel : post-check for node deletion.
Valid Components are:
nodereach : checks reachability between nodes
nodecon : checks node connectivity
ssa : checks shared storage accessibility
space : checks space availability
sys : checks minimum system requirements
clu : checks cluster integrity
clumgr : checks cluster manager integrity
ocr : checks OCR integrity
olr : checks OLR integrity
ha : checks HA integrity
crs : checks CRS integrity
nodeapp : checks node applications existence
admprv : checks administrative privileges
peer : compares properties with peers
software : checks software distribution
acfs : checks ACFS integrity
asm : checks ASM integrity
gpnp : checks GPnP integrity
gns : checks GNS integrity
scan : checks SCAN configuration
ohasd : checks OHASD integrity
clocksync : checks Clock Synchronization
vdisk : checks Voting Disk configuration and UDEV settings
dhcp : Checks DHCP configuration
dns : Checks DNS configuration
OIFCFG工具：
Name:
oifcfg - Oracle Interface Configuration Tool.
Usage: oifcfg iflist [-p [-n]]
oifcfg setif {-node <nodename> | -global} {<if_name>/<subnet>:<if_type>}...
oifcfg getif [-node <nodename> | -global] [ -if <if_name>[/<subnet>] [-type <if_type>] ]
oifcfg delif {{-node <nodename> | -global} [<if_name>[/<subnet>]] [-force] | -force}
oifcfg [-help]
<nodename> - name of the host, as known to a communications network
<if_name> - name by which the interface is configured in the system
<subnet> - subnet address of the interface
<if_type> - type of the interface { cluster_interconnect | public }
Oifcfg工具可以用来添加和修改public and private network,也可以查询网络的相关信息.
Lan901是private network,关于169.254.*.*从何而来,见下节:
11gR2 Grid Infrastructure Redundant Interconnect and ora.cluster_interconnect.haip
一下文章转自Metalink ID 1210883.1
Redundant Interconnect without any 3rd-party IP failover technology (bond, IPMP or similar) is supported natively by Grid Infrastructure starting from 11.2.0.2. Multiple private network adapters can be defined either during the installation phase or afterward using the oifcfg. Oracle Database, CSS, OCR, CRS, CTSS, and EVM components in 11.2.0.2 employ it automatically.
Grid Infrastructure can activate a maximum of four private network adapters at a time even if more are defined. The ora.cluster_interconnect.haip resource will start one to four link local HAIP on private network adapters for interconnect communication for Oracle RAC, Oracle ASM, and Oracle ACFS etc.
Grid automatically picks free link local addresses from reserved 169.254.*.* subnet for HAIP. According to RFC-3927, link local subnet 169.254.*.* should not be used for any other purpose. With HAIP, by default, interconnect traffic will be load balanced across all active interconnect interfaces, and corresponding HAIP address will be failed over transparently to other adapters if one fails or becomes non-communicative. .
The number of HAIP addresses is decided by how many private network adapters are active when Grid comes up on the first node in the cluster . If there's only one active private network, Grid will create one; if two, Grid will create two; and if more than two, Grid will create four HAIPs. The number of HAIPs won't change even if more private network adapters are activated later, a restart of clusterware on all nodes is required for the number to change, however, the newly activated adapters can be used for fail over purpose.When Oracle Clusterware is fully up, resource haip should show status of ONLINE:
