This article will walk you through how to configure a resource group in zone cluster. Unlike traditional cluster, resource group and cluster resources are should be created inside the non-global zone. The required physical or logical resources need to be pinned from the global zone using “clzonecluster” or “clzc” command. In this article, we will configure HA filesystem and IP resource on one of the zone cluster which we have created earlier. Adding to that , you can also configure DB or Application resource for HA.
- Global Cluster Nodes – UASOL1 & UASOL2
- zone Cluster Nodes – uainfrazone1 & uainfrazone2
1.Login to one of the global cluster node.
2.Check the cluster status.
Global Cluster:
UASOL2:#clnode status === Cluster Nodes === --- Node Status --- Node Name Status --------- ------ UASOL2 Online UASOL1 Online
Zone Cluster :
Login to one of the zone and check the cluster status. (extend the command search path to “/usr/cluster/bin”)
UASOL2:#zlogin uainfrazone [Connected to zone 'uainfrazone' pts/3] Last login: Mon Apr 11 02:00:17 on pts/2 Oracle Corporation SunOS 5.10 Generic Patch January 2005 # bash bash-3.2# export PATH=/usr/cluster/bin:$PATH bash-3.2# clnode status === Cluster Nodes === --- Node Status --- Node Name Status --------- ------ uainfrazone1 Online uainfrazone2 Online bash-3.2#
Make sure that both the host names are updated on each nodes “/etc/inet/hosts” file.
3. Login to one of the global zone (Global Cluster) and add the IP detail in zone cluster. (IP which needs to highly available)
UASOL2:#clzc configure uainfrazone
clzc:uainfrazone> add net
clzc:uainfrazone:net> set address=192.168.2.102
clzc:uainfrazone:net> info
net:
address: 192.168.2.102
physical: auto
defrouter not specified
clzc:uainfrazone:net> end
clzc:uainfrazone> commit
clzc:uainfrazone> exit
4 . Create the ZFS pool on shared SAN LUN. So that zpool can be exported and imported other cluster nodes.
UASOL2:#zpool create oradbp1 c2t15d0 UASOL2:#zpool list oradbp1 NAME SIZE ALLOC FREE CAP HEALTH ALTROOT oradbp1 2.95G 78.5K 2.95G 0% ONLINE - UASOL2:#
Just manually export the zpool on UASOL2 & try to import it on UASOL1.
UASOL2:#zpool export oradbp1 UASOL2:#logout Connection to UASOL2 closed. UASOL1:#zpool import oradbp1 UASOL1:#zpool list oradbp1 NAME SIZE ALLOC FREE CAP HEALTH ALTROOT oradbp1 2.95G 133K 2.95G 0% ONLINE - UASOL1:#
It works. Let’s map this zpool to the zone cluster – uainfrazone.
5. In one of the global cluster node , invoke “clzc” to add the zpool.
UASOL1:#clzc configure uainfrazone
clzc:uainfrazone> add dataset
clzc:uainfrazone:dataset> set name=oradbp1
clzc:uainfrazone:dataset> info
dataset:
name: oradbp1
clzc:uainfrazone:dataset> end
clzc:uainfrazone> commit
clzc:uainfrazone> exit
UASOL1:#
We have successfully added IP address and dataset on the zone cluster configuration. At this point, you are eligible to use these resource under the zone cluster to configure the cluster resources.
Configure Resource group and cluster Resources on Zone Cluster:
1. Add the IP in /etc/hosts of the zone cluster nodes (uainfrazone1 & uainfrazone2). We will make this IP as highly available through cluster.
bash-3.2# grep ora /etc/hosts 192.168.2.102 oralsn-ip bash-3.2#
2. In one of the zone cluster node , Create the cluster resource group with name of “oradb-rg”.
bash-3.2# clrg create -n uainfrazone1,uainfrazone2 oradb-rg
bash-3.2# clrg status
=== Cluster Resource Groups ===
Group Name Node Name Suspended Status
---------- --------- --------- ------
oradb-rg uainfrazone1 No Unmanaged
uainfrazone2 No Unmanaged
bash-3.2#
If you want to create the resource group for “uainfrazone” zone cluster from global zone , you can use the following command. (with -Z “zone-cluster” name)
UASOL2:# clrg create -Z uainfrazone -n uainfrazone1,uainfrazone2 oradb-rg
UASOL2:#clrg status -Z uainfrazone
=== Cluster Resource Groups ===
Group Name Node Name Suspended Status
---------- --------- --------- ------
uainfrazone:oradb-rg uainfrazone1 No Unmanaged
uainfrazone2 No Unmanaged
UASOL2:#
3. Create the cluster IP resource for oralsn-ip . (Refer step 1)
bash-3.2# clrslh create -g oradb-rg -h oralsn-ip oralsn-ip-rs
bash-3.2# clrs status
=== Cluster Resources ===
Resource Name Node Name State Status Message
------------- --------- ----- --------------
oralsn-ip-rs uainfrazone1 Offline Offline
uainfrazone2 Offline Offline
bash-3.2#
4. Create the ZFS resource for zpool – oradbp1 (which we have created and assigned this zone cluster in first section of the document)
You must register the ZFS resource type prior to adding the resource in cluster.
bash-3.2# clresourcetype register SUNW.HAStoragePlus bash-3.2# clrt list SUNW.LogicalHostname:4 SUNW.SharedAddress:2 SUNW.HAStoragePlus:10 bash-3.2#
Add the dataset in zone cluster to make HA.
bash-3.2# clrs create -g oradb-rg -t SUNW.HAStoragePlus -p zpools=oradbp1 oradbp1-rs
bash-3.2# clrs status
=== Cluster Resources ===
Resource Name Node Name State Status Message
------------- --------- ----- --------------
oradbp1-rs uainfrazone1 Offline Offline
uainfrazone2 Offline Offline
oralsn-ip-rs uainfrazone1 Offline Offline
uainfrazone2 Offline Offline
bash-3.2#
5. Bring up the resource group online.
bash-3.2# clrg online -eM oradb-rg
bash-3.2# clrs status
=== Cluster Resources ===
Resource Name Node Name State Status Message
------------- --------- ----- --------------
oradbp1-rs uainfrazone1 Online Online
uainfrazone2 Offline Offline
oralsn-ip-rs uainfrazone1 Online Online - LogicalHostname online.
uainfrazone2 Offline Offline
bash-3.2# uname -a
SunOS uainfrazone2 5.10 Generic_147148-26 i86pc i386 i86pc
bash-3.2#
6. Verify the resource status in uainfrazone1.
bash-3.2# clrg status
=== Cluster Resource Groups ===
Group Name Node Name Suspended Status
---------- --------- --------- ------
oradb-rg uainfrazone1 No Online
uainfrazone2 No Offline
bash-3.2# clrs status
=== Cluster Resources ===
Resource Name Node Name State Status Message
------------- --------- ----- --------------
oradbp1-rs uainfrazone1 Online Online
uainfrazone2 Offline Offline
oralsn-ip-rs uainfrazone1 Online Online - LogicalHostname online.
uainfrazone2 Offline Offline
bash-3.2#
bash-3.2# ifconfig -a
lo0:1: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1
zone uainfrazone
inet 127.0.0.1 netmask ff000000
e1000g0: flags=9000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4,NOFAILOVER> mtu 1500 index 2
inet 192.168.2.90 netmask ffffff00 broadcast 192.168.2.255
groupname sc_ipmp0
e1000g0:1: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2
zone uainfrazone
inet 192.168.2.101 netmask ffffff00 broadcast 192.168.2.255
e1000g0:2: flags=1001040843<UP,BROADCAST,RUNNING,MULTICAST,DEPRECATED,IPv4,FIXEDMTU> mtu 1500 index 2
zone uainfrazone
inet 192.168.2.102 netmask ffffff00 broadcast 192.168.2.255
clprivnet0: flags=1008843<UP,BROADCAST,RUNNING,MULTICAST,PRIVATE,IPv4> mtu 1500 index 5
inet 172.16.2.2 netmask ffffff00 broadcast 172.16.2.255
clprivnet0:3: flags=1008843<UP,BROADCAST,RUNNING,MULTICAST,PRIVATE,IPv4> mtu 1500 index 5
zone uainfrazone
inet 172.16.3.66 netmask ffffffc0 broadcast 172.16.3.127
bash-3.2# zfs list
NAME USED AVAIL REFER MOUNTPOINT
oradbp1 86.5K 2.91G 31K /oradbp1
bash-3.2#
You can see that ZFS dataset “oradbp1” and IP “192.168.2.102” is up on uainfrazone1.
7. Switch the resource group to uainfrazone2 and check the resource status.
bash-3.2# clrg switch -n uainfrazone2 oradb-rg
bash-3.2# clrg status
=== Cluster Resource Groups ===
Group Name Node Name Suspended Status
---------- --------- --------- ------
oradb-rg uainfrazone1 No Offline
uainfrazone2 No Online
bash-3.2# clrs status
=== Cluster Resources ===
Resource Name Node Name State Status Message
------------- --------- ----- --------------
oradbp1-rs uainfrazone1 Offline Offline
uainfrazone2 Online Online
oralsn-ip-rs uainfrazone1 Offline Offline - LogicalHostname offline.
uainfrazone2 Online Online - LogicalHostname online.
bash-3.2#
bash-3.2#
Verify the result from OS level. Login to uainfrazone2 and check the following to confirm the switch over.
bash-3.2# ifconfig -a
lo0:1: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1
zone uainfrazone
inet 127.0.0.1 netmask ff000000
e1000g0: flags=9000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4,NOFAILOVER> mtu 1500 index 2
inet 192.168.2.91 netmask ffffff00 broadcast 192.168.2.255
groupname sc_ipmp0
e1000g0:1: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2
zone uainfrazone
inet 192.168.2.103 netmask ffffff00 broadcast 192.168.2.255
e1000g0:2: flags=1001040843<UP,BROADCAST,RUNNING,MULTICAST,DEPRECATED,IPv4,FIXEDMTU> mtu 1500 index 2
zone uainfrazone
inet 192.168.2.102 netmask ffffff00 broadcast 192.168.2.255
clprivnet0: flags=1008843<UP,BROADCAST,RUNNING,MULTICAST,PRIVATE,IPv4> mtu 1500 index 5
inet 172.16.2.1 netmask ffffff00 broadcast 172.16.2.255
clprivnet0:3: flags=1008843<UP,BROADCAST,RUNNING,MULTICAST,PRIVATE,IPv4> mtu 1500 index 5
zone uainfrazone
inet 172.16.3.65 netmask ffffffc0 broadcast 172.16.3.127
bash-3.2# df -h /oradbp1/
Filesystem size used avail capacity Mounted on
oradbp1 2.9G 31K 2.9G 1% /oradbp1
bash-3.2# zfs list
NAME USED AVAIL REFER MOUNTPOINT
oradbp1 86.5K 2.91G 31K /oradbp1
bash-3.2#
We have successfully configure the Resource group and made ZFS and IP as highly available (HA) on Oracle Solaris zones via zone cluster concept. Hope this article is informative to you. In the next article, we will see that how to add/remove/delete nodes from the zones cluster.