![]() Stop from bringing online.įlush a service group and enable corrective action.Ĭhange a resource attribute to be globally wideĬhange a resource attribute to be locally wideĭisplay the state of a resource( offline, online, etc) Note to check run the following command "hagrp -display | grep Enabled"ĭisable a service group. Only Enabled groups can be brought online. Unfreeze a service group (enable onlining and offlining)Įnable a service group. Note: use the following to check "hagrp -display | grep TFrozen" Switch a service group from system to anotherįreeze a service group (disable onlining and offlining) Stop a service group and takes its resources offline Start a service group and bring its resources online Hagrp -modify grp_zlnrssd SystemList -add 1 # add the new host (don't forget to state its position) Hagrp -modify grp_zlnrssd SystemList -delete Note: use the "hagrp -display " to list attributesĭisplay the current state of the service groupĬlear a faulted non-persistent resource in a specific grp Hagrp -modify groupw SystemList sun1 1 sun2 2 sun3 3 Hagrp -modify groupw SystemList sun1 1 sun2 2 Hacf -cmdtocf /tmp -dest /etc/VRTS/conf/config Hacf -cftocmd /etc/VRTS/conf/config -dest /tmpĬonvert a command file into a main.cf file Note: you can point to any directory as long as it has main.cf and types.cfĬonvert a main.cf file into cluster commands When the configuration is putīack into read-only mode the. stale file is created in $VCS_CONF/conf/config. When in read/write mode theĬonfiguration becomes stale, a. The VCS configuration must be in read/write mode in order to make changes. Unfreeze a system ( reenable groups and resource back online) Stop the cluster on all nodes but leave the clustered resources online.ĭisplay the value of a systems nodeid (/etc/llthosts)įreeze a system (No offlining system, No groups onlining) Stop cluster on local server but evacuate (failover) the application/s to another node within the cluster. Note: This will also bring any clustered resources offline. "-force" instructs the engine to treat a stale config as a valid oneīring the cluster into running mode from a stale state using the configuration file from a particular server. "-stale" instructs the engine to treat the local config as stale Y kernel-tokernel communication used for I/O shipping. O VCSMM driver (kernel module needed for Oracle and VCS interface) H VCS (VERITAS Cluster Server: high availability daemon) Override the seed values in the gabtab fileī I/O fencing (designed to guarantee data integrity) Note: port a indicates that GAB is communicating, port h indicates that VCS is started. Lists information about each configured LLT link x Manually seed node (careful when manually seeding as you can create 2 separate clusters)ĭisplay the values of LLT configuration directives The file contains the information that defines the cluster and its systems. This file is used by the gabconfig utility. The file contains the information needed to configure the GAB driver. ![]() The file contains information that is derived during installation and is used by the utility lltconfig. The file is identical on each server in the cluster. The file is a database, containing one entry per system, that links the LLT system ID with the hosts name. The system admin configures GAB driver by creating a configuration file ( gabtab). GAB (Group membership and Atomic Broadcast) provides the global message order required to maintain a synchronised state among the systems, and monitors disk comms such as that required by the VCS heartbeat utility. The LLT runs in layer 2 of the network stack. The system admin configures the LLT by creating a configuration file (llttab) that describes the systems in the cluster and private network links among them. LLT (Low Latency Transport) provides fast, kernel-to-kernel comms and monitors network connections. These components provide the performance and reliability required by VCS. VCS uses two components, LLT and GAB, to share data over the private networks among systems. This article is a reference for numerous Cluster Server (VCS) commands.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |