Two resource groups one on each node.

Hi I am setting up a sun cluster with two nodes and storage.
I want to run oracle and weblogic.
I dont want to run both on the same server as the load matters and there are two boxes which can be used.
I am planning to setup two resource groups with logical hosts one on each box and buind oracle to one and weblogic to second logical host on the other box.
Now my requirement is,,
I want first box to be primary for oracle resource group and second box to be primary for weblogic resource group.
Can you please tell me how to configure different resource groupes to start on different boxes?
Thanks in advance for the help.
Ramesh.

Hi, This document talks about bonding the resources in different ways. But doesnot suggest setting dependency between resources in different resource groups.
To make it little more clear.
I have box1 and box2 as nodes of cluster.
the resources are distrebuted as follows.
-----Box 1-------------------------Box2-------
resourcegroup1--------Resourcegroup2
logicalresource1-------logicalresource2
Weblogicresource-----Oracleresource
I will configure the resources to start on different nodes on startup by providing node list in different sequence for each resource group.
But I want to set the dependency here..the "WeblogicResource" should not start before "Oracleresource".
Can I straightaway set the dependency as we do for resources in same group or is there any other method to do this?
Since I donot have a ready/usable test cluster I am unable to try it before posting the question.
Please let me know the possible solution for this.
Message was edited by:
Ramesh_PS1

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+Feb 6 16:19:51 DB1 Cluster.RGM.global.rgmd: [ID 529407 daemon.notice] resource group oracleha-rg state on node DB1 change to RG_OFF_PENDING_METHODS+
+Feb 6 16:19:51 DB1 Cluster.RGM.global.rgmd: [ID 529407 daemon.notice] resource group oracleha-rg state on node DB2 change to RG_OFF_PENDING_METHODS+
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+Feb 6 16:19:51 DB1 Cluster.RGM.global.rgmd: [ID 529407 daemon.notice] resource group oracleha-rg state on node DB2 change to RG_OFFLINE+
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Oct 17 05:19:17 node1 Cluster.RGM.rgmd: [ID 224900 daemon.notice] launching method <hafoip_prenet_start> for resource <ha-
host-1>, resource group <rg-ora>, node <node1>, timeout <300> seconds
Oct 17 05:19:17 node1 Cluster.RGM.rgmd: [ID 751138 daemon.notice] 47 fe_rpc_command: cmd_type(enum):<1>:cmd=</usr/cluster/
lib/rgm/rt/hafoip/hafoip_prenet_start>:tag=<rg-ora.ha-host-1.10>: Calling security_clnt_connect(..., host=<node1>, sec_typ
e {0:WEAK, 1:STRONG, 2:DES} =<1>, ...)
Oct 17 05:19:17 node1 Cluster.RGM.rgmd: [ID 515159 daemon.notice] method <hafoip_prenet_start> completed successfully for
resource <ha-host-1>, resource group <rg-ora>, node <node1>, time used: 0% of timeout <300 seconds>
Oct 17 05:19:17 node1 Cluster.RGM.rgmd: [ID 224900 daemon.notice] launching method <hastorageplus_prenet_start> for resour
ce <rs-ora-has>, resource group <rg-ora>, node <node1>, timeout <1800> seconds
Oct 17 05:19:17 node1 Cluster.RGM.rgmd: [ID 751138 daemon.notice] 47 fe_rpc_command: cmd_type(enum):<1>:cmd=</usr/cluster/
lib/rgm/rt/hastorageplus/hastorageplus_prenet_start>:tag=<rg-ora.rs-ora-has.10>: Calling security_clnt_connect(..., host=<tes
tlab5>, sec_type {0:WEAK, 1:STRONG, 2:DES} =<1>, ...)
Oct 17 05:19:18 node1 Cluster.RGM.rgmd: [ID 375444 daemon.notice] 8 fe_rpc_command: cmd_type(enum):<2>:cmd=<null>:tag=<rg-
ora.rs-ora-has.10>: Calling security_clnt_connect(..., host=<node1>, sec_type {0:WEAK, 1:STRONG, 2:DES} =<0>, ...)
Oct 17 05:19:18 node1 Cluster.RGM.rgmd: [ID 316625 daemon.notice] Timeout monitoring on method tag <rg-ora.rs-ora-has.10>
has been suspended.
Oct 17 05:19:20 node1 Cluster.Framework: [ID 801593 daemon.notice] stdout: becoming primary for oradg
Oct 17 05:19:21 node1 Cluster.RGM.rgmd: [ID 375444 daemon.notice] 8 fe_rpc_command: cmd_type(enum):<3>:cmd=<null>:tag=<rg-
ora.rs-ora-has.10>: Calling security_clnt_connect(..., host=<node1>, sec_type {0:WEAK, 1:STRONG, 2:DES} =<0>, ...)
Oct 17 05:19:21 node1 Cluster.RGM.rgmd: [ID 316625 daemon.notice] Timeout monitoring on method tag <rg-ora.rs-ora-has.10>
has been resumed.
Oct 17 05:19:25 node1 Cluster.RGM.rgmd: [ID 515159 daemon.notice] method <hastorageplus_prenet_start> completed successful
ly for resource <rs-ora-has>, resource group <rg-ora>, node <node1>, time used: 0% of timeout <1800 seconds>
Oct 17 05:19:25 node1 Cluster.RGM.rgmd: [ID 224900 daemon.notice] launching method <hafoip_start> for resource <ha-host-1>
, resource group <rg-ora>, node <node1>, timeout <500> seconds
Oct 17 05:19:25 node1 Cluster.RGM.rgmd: [ID 751138 daemon.notice] 47 fe_rpc_command: cmd_type(enum):<1>:cmd=</usr/cluster/
lib/rgm/rt/hafoip/hafoip_start>:tag=<rg-ora.ha-host-1.0>: Calling security_clnt_connect(..., host=<node1>, sec_type {0:WEA
K, 1:STRONG, 2:DES} =<1>, ...)
Oct 17 05:19:25 node1 Cluster.RGM.rgmd: [ID 515159 daemon.notice] method <hafoip_start> completed successfully for resourc
e <ha-host-1>, resource group <rg-ora>, node <node1>, time used: 0% of timeout <500 seconds>
Oct 17 05:19:25 node1 Cluster.RGM.rgmd: [ID 224900 daemon.notice] launching method <hafoip_monitor_start> for resource <ha
-host-1>, resource group <rg-ora>, node <node1>, timeout <300> seconds
Oct 17 05:19:25 node1 Cluster.RGM.rgmd: [ID 224900 daemon.notice] launching method <hastorageplus_start> for resource <rs-
ora-has>, resource group <rg-ora>, node <node1>, timeout <90> seconds
Oct 17 05:19:25 node1 Cluster.RGM.rgmd: [ID 510020 daemon.notice] 46 fe_rpc_command: cmd_type(enum):<1>:cmd=</usr/cluster/
lib/rgm/rt/hafoip/hafoip_monitor_start>:tag=<rg-ora.ha-host-1.7>: Calling security_clnt_connect(..., host=<node1>, sec_typ
e {0:WEAK, 1:STRONG, 2:DES} =<1>, ...)
Oct 17 05:19:25 node1 Cluster.RGM.rgmd: [ID 751138 daemon.notice] 47 fe_rpc_command: cmd_type(enum):<1>:cmd=</usr/cluster/
lib/rgm/rt/hastorageplus/hastorageplus_start>:tag=<rg-ora.rs-ora-has.0>: Calling security_clnt_connect(..., host=<node1>,
sec_type {0:WEAK, 1:STRONG, 2:DES} =<1>, ...)
Oct 17 05:19:25 node1 Cluster.RGM.rgmd: [ID 515159 daemon.notice] method <hafoip_monitor_start> completed successfully for
resource <ha-host-1>, resource group <rg-ora>, node <node1>, time used: 0% of timeout <300 seconds>
Oct 17 05:19:25 node1 Cluster.RGM.rgmd: [ID 515159 daemon.notice] method <hastorageplus_start> completed successfully for
resource <rs-ora-has>, resource group <rg-ora>, node <node1>, time used: 0% of timeout <90 seconds>
Oct 17 05:19:25 node1 Cluster.RGM.rgmd: [ID 224900 daemon.notice] launching method <hastorageplus_monitor_start> for resou
rce <rs-ora-has>, resource group <rg-ora>, node <node1>, timeout <90> seconds
Oct 17 05:19:25 node1 Cluster.RGM.rgmd: [ID 751138 daemon.notice] 47 fe_rpc_command: cmd_type(enum):<1>:cmd=</usr/cluster/
lib/rgm/rt/hastorageplus/hastorageplus_monitor_start>:tag=<rg-ora.rs-ora-has.7>: Calling security_clnt_connect(..., host=<tes
tlab5>, sec_type {0:WEAK, 1:STRONG, 2:DES} =<1>, ...)
Oct 17 05:19:25 node1 Cluster.RGM.rgmd: [ID 515159 daemon.notice] method <hastorageplus_monitor_start> completed successfu
lly for resource <rs-ora-has>, resource group <rg-ora>, node <node1>, time used: 0% of timeout <90 seconds>
Oct 17 05:19:38 node1 Cluster.RGM.rgmd: [ID 224900 daemon.notice] launching method <bin/oracle_server_validate> for resour
ce <rs-ora>, resource group <rg-ora>, node <node1>, timeout <120> seconds

Oct 17 05:19:38 node1 Cluster.RGM.rgmd: [ID 375444 daemon.notice] 8 fe_rpc_command: cmd_type(enum):<1>:cmd=</opt/SUNWscor/
oracle_server/bin/oracle_server_validate>:tag=<rg-ora.rs-ora.2>: Calling security_clnt_connect(..., host=<node1>, sec_type
{0:WEAK, 1:STRONG, 2:DES} =<1>, ...)
Oct 17 05:19:38 node1 Cluster.RGM.rgmd: [ID 515159 daemon.notice] method <bin/oracle_server_validate> completed successful
ly for resource <rs-ora>, resource group <rg-ora>, node <node1>, time used: 0% of timeout <120 seconds>
Oct 17 05:19:38 node1 Cluster.RGM.rgmd: [ID 224900 daemon.notice] launching method <bin/oracle_server_init> for resource <
rs-ora>, resource group <rg-ora>, node <node1>, timeout <30> seconds
Oct 17 05:19:38 node1 Cluster.RGM.rgmd: [ID 751138 daemon.notice] 47 fe_rpc_command: cmd_type(enum):<1>:cmd=</opt/SUNWscor
/oracle_server/bin/oracle_server_init>:tag=<rg-ora.rs-ora.4>: Calling security_clnt_connect(..., host=<node1>, sec_type {0
:WEAK, 1:STRONG, 2:DES} =<1>, ...)
Oct 17 05:19:38 node1 Cluster.RGM.rgmd: [ID 515159 daemon.notice] method <bin/oracle_server_init> completed successfully f
or resource <rs-ora>, resource group <rg-ora>, node <node1>, time used: 0% of timeout <30 seconds>
Oct 17 05:19:38 node1 Cluster.CCR: [ID 973933 daemon.notice] resource rs-ora added.
Oct 17 05:19:39 node1 Cluster.RGM.rgmd: [ID 224900 daemon.notice] launching method <bin/oracle_server_start> for resource
<rs-ora>, resource group <rg-ora>, node <node1>, timeout <600> seconds
Oct 17 05:19:39 node1 Cluster.RGM.rgmd: [ID 751138 daemon.notice] 47 fe_rpc_command: cmd_type(enum):<1>:cmd=</opt/SUNWscor
/oracle_server/bin/oracle_server_start>:tag=<rg-ora.rs-ora.0>: Calling security_clnt_connect(..., host=<node1>, sec_type {
0:WEAK, 1:STRONG, 2:DES} =<1>, ...)
Oct 17 05:19:48 node1 SC[SUNWscor.oracle_server.start]:rg-ora:rs-ora: [ID 876834 daemon.error] Could not start server
Oct 17 05:19:48 node1 Cluster.RGM.rgmd: [ID 938318 daemon.error] Method <bin/oracle_server_start> failed on resource <rs-o
ra> in resource group <rg-ora> [exit code <1>, time used: 1% of timeout <600 seconds>]
Node2# more /var/adm/messages
Oct 14 20:20:04 node2 Cluster.RGM.rgmd: [ID 529407 daemon.notice] resource group rg-ora state on node node2 change to RG_PENDIN
G_OFFLINE
Oct 14 20:20:04 node2 Cluster.RGM.rgmd: [ID 443746 daemon.notice] resource rs-ora-has state on node node2 change to R_MON_STOPP
ING
Oct 14 20:20:04 node2 Cluster.RGM.rgmd: [ID 443746 daemon.notice] resource ha-host-1 state on node node2 change to R_MON_STOPPI
NG
Oct 14 20:20:04 node2 Cluster.RGM.rgmd: [ID 224900 daemon.notice] launching method <hafoip_monitor_stop> for resource <ha-host
-1>, resource group <rg-ora>, node <node2>, timeout <300> seconds
Oct 14 20:20:04 node2 Cluster.RGM.rgmd: [ID 224900 daemon.notice] launching method <hastorageplus_monitor_stop> for resource <
rs-ora-has>, resource group <rg-ora>, node <node2>, timeout <90> seconds
Oct 14 20:20:04 node2 Cluster.RGM.rgmd: [ID 268902 daemon.notice] 45 fe_rpc_command: cmd_type(enum):<1>:cmd=</usr/cluster/lib/
rgm/rt/hafoip/hafoip_monitor_stop>:tag=<rg-ora.ha-host-1.8>: Calling security_clnt_connect(..., host=<node2>, sec_type {0:WEAK
, 1:STRONG, 2:DES} =<1>, ...)
Oct 14 20:20:04 node2 Cluster.RGM.rgmd: [ID 510020 daemon.notice] 46 fe_rpc_command: cmd_type(enum):<1>:cmd=</usr/cluster/lib/
rgm/rt/hastorageplus/hastorageplus_monitor_stop>:tag=<rg-ora.rs-ora-has.8>: Calling security_clnt_connect(..., host=<node2>, s
ec_type {0:WEAK, 1:STRONG, 2:DES} =<1>, ...)
Oct 14 20:20:05 node2 Cluster.RGM.rgmd: [ID 515159 daemon.notice] method <hastorageplus_monitor_stop> completed successfully f
or resource <rs-ora-has>, resource group <rg-ora>, node <node2>, time used: 0% of timeout <90 seconds>
Oct 14 20:20:05 node2 Cluster.RGM.rgmd: [ID 443746 daemon.notice] resource rs-ora-has state on node node2 change to R_ONLINE_UN
MON
Oct 14 20:20:05 node2 Cluster.RGM.rgmd: [ID 443746 daemon.notice] resource rs-ora-has state on node node2 change to R_STOPPING
Oct 14 20:20:05 node2 Cluster.RGM.rgmd: [ID 784560 daemon.notice] resource rs-ora-has status on node node2 change to R_FM_UNKNO
WN
Oct 14 20:20:05 node2 Cluster.RGM.rgmd: [ID 922363 daemon.notice] resource rs-ora-has status msg on node node2 change to <Stopp
ing>
Oct 14 20:20:05 node2 Cluster.RGM.rgmd: [ID 224900 daemon.notice] launching method <hastorageplus_stop> for resource <rs-ora-h
as>, resource group <rg-ora>, node <node2>, timeout <1800> seconds
Oct 14 20:20:05 node2 Cluster.RGM.rgmd: [ID 510020 daemon.notice] 46 fe_rpc_command: cmd_type(enum):<1>:cmd=</usr/cluster/lib/
rgm/rt/hastorageplus/hastorageplus_stop>:tag=<rg-ora.rs-ora-has.1>: Calling security_clnt_connect(..., host=<node2>, sec_type
{0:WEAK, 1:STRONG, 2:DES} =<1>, ...)
Oct 14 20:20:05 node2 Cluster.RGM.rgmd: [ID 515159 daemon.notice] method <hafoip_monitor_stop> completed successfully for reso
urce <ha-host-1>, resource group <rg-ora>, node <node2>, time used: 0% of timeout <300 seconds>
Oct 14 20:20:05 node2 Cluster.RGM.rgmd: [ID 443746 daemon.notice] resource ha-host-1 state on node node2 change to R_ONLINE_UNM
ON
Oct 14 20:20:05 node2 Cluster.RGM.rgmd: [ID 515159 daemon.notice] method <hastorageplus_stop> completed successfully for resou
rce <rs-ora-has>, resource group <rg-ora>, node <node2>, time used: 0% of timeout <1800 seconds>
Oct 14 20:20:05 node2 Cluster.RGM.rgmd: [ID 443746 daemon.notice] resource rs-ora-has state on node node2 change to R_STOPPED
Oct 14 20:20:05 node2 Cluster.RGM.rgmd: [ID 443746 daemon.notice] resource ha-host-1 state on node node2 change to R_STOPPING
Oct 14 20:20:05 node2 Cluster.RGM.rgmd: [ID 224900 daemon.notice] launching method <hafoip_stop> for resource <ha-host-1>, res
ource group <rg-ora>, node <node2>, timeout <300> seconds
Oct 14 20:20:05 node2 Cluster.RGM.rgmd: [ID 784560 daemon.notice] resource ha-host-1 status on node node2 change to R_FM_UNKNOW
N
Oct 14 20:20:05 node2 Cluster.RGM.rgmd: [ID 922363 daemon.notice] resource ha-host-1 status msg on node node2 change to <Stoppi
ng>
Oct 14 20:20:05 node2 Cluster.RGM.rgmd: [ID 510020 daemon.notice] 46 fe_rpc_command: cmd_type(enum):<1>:cmd=</usr/cluster/lib/
rgm/rt/hafoip/hafoip_stop>:tag=<rg-ora.ha-host-1.1>: Calling security_clnt_connect(..., host=<node2>, sec_type {0:WEAK, 1:STRO
NG, 2:DES} =<1>, ...)
Oct 14 20:20:06 node2 ip: [ID 678092 kern.notice] TCP_IOC_ABORT_CONN: local = 192.168.032.244:0, remote = 000.000.000.000:0, s
tart = -2, end = 6
Oct 14 20:20:06 node2 ip: [ID 302654 kern.notice] TCP_IOC_ABORT_CONN: aborted 0 connection
Oct 14 20:20:06 node2 Cluster.RGM.rgmd: [ID 784560 daemon.notice] resource ha-host-1 status on node node2 change to R_FM_OFFLIN
E
Oct 14 20:20:06 node2 Cluster.RGM.rgmd: [ID 922363 daemon.notice] resource ha-host-1 status msg on node node2 change to <Logica
lHostname offline.>
Oct 14 20:20:06 node2 Cluster.RGM.rgmd: [ID 515159 daemon.notice] method <hafoip_stop> completed successfully for resource <ha
-host-1>, resource group <rg-ora>, node <node2>, time used: 0% of timeout <300 seconds>
Oct 14 20:20:06 node2 Cluster.RGM.rgmd: [ID 443746 daemon.notice] resource ha-host-1 state on node node2 change to R_OFFLINE
Oct 14 20:20:06 node2 Cluster.RGM.rgmd: [ID 443746 daemon.notice] resource rs-ora-has state on node node2 change to R_POSTNET_S
TOPPING

2 node Sun Cluster 3.2, resource groups not failing over.

Hello,
I am currently running two v490s connected to a 6540 Sun Storagetek array. After attempting to install the latest OS patches the cluster seems nearly destroyed. I backed out the patches and right now only one node can process the resource groups properly. The other node will appear to take over the Veritas disk groups but will not mount them automatically. I have been working on this for over a month and have learned alot and fixed alot of other issues that came up, but the cluster is just not working properly. Here is some output.
bash-3.00# clresourcegroup switch -n coins01 DataWatch-rg
clresourcegroup: (C776397) Request failed because node coins01 is not a potential primary for resource group DataWatch-rg. Ensure that when a zone is intended, it is explicitly specified by using the node:zonename format.
bash-3.00# clresourcegroup switch -z zcoins01 -n coins01 DataWatch-rg
clresourcegroup: (C298182) Cannot use node coins01:zcoins01 because it is not currently in the cluster membership.
clresourcegroup: (C916474) Request failed because none of the specified nodes are usable.
bash-3.00# clresource status
=== Cluster Resources ===
Resource Name Node Name State Status Message
ftp-rs coins01:zftp01 Offline Offline
coins02:zftp01 Offline Offline - LogicalHostname offline.
xprcoins coins01:zcoins01 Offline Offline
coins02:zcoins01 Offline Offline - LogicalHostname offline.
xprcoins-rs coins01:zcoins01 Offline Offline
coins02:zcoins01 Offline Offline - LogicalHostname offline.
DataWatch-hasp-rs coins01:zcoins01 Offline Offline
coins02:zcoins01 Offline Offline
BDSarchive-res coins01:zcoins01 Offline Offline
coins02:zcoins01 Offline Offline
I am really at a loss here. Any help appreciated.
Thanks

My advice is to open a service call, provided you have a service contract with Oracle. There is much more information required to understand that specific configuration and to analyse the various log files. This is beyond what can be done in this forum.
From your description I can guess that you want to failover a resource group between non-global zones. And it looks like the zone coins01:zcoins01 is reported to not be in cluster membership.
Obviously node coins01 needs to be a cluster member. If it is reported as online and has joined the cluster, then you need to verify if the zone zcoins01 is really properly up and running.
Specifically you need to verify that it reached the multi-user milestone and all cluster related SMF services are running correctly (ie. verify "svcs -x" in the non-global zone).
You mention Veritas diskgroups. Note that VxVM diskgroups are handled in the global cluster level (ie. in the global zone). The VxVM diskgroup is not imported for a non-global zone. However, with SUNW.HAStoragePlus you can ensure that file systems on top of VxVM diskgroups can be mounted into a non-global zone. But again, more information would be required to see how you configued things and why they don't work as you expect it.
Regards
Thorsten

Can Resource Group Virtual IP be same as that of any of the Cluster Node?

Hi,
Can Resource Group Virtual IP Address be same as the IP Address of any of the Cluster Nodes?
As in if my Cluster node (node-1) has IP Address, say 172.23.28.218, then can I configure a Resource Group with the same IP Address, i.e. 172.23.28.218?
Thanks,
Chaitanya

Chaitanya,
Short answer - no. The physical nodes have IP addresses which are fixed and unique. A RG group can have 0 or more logical hosts (IP addresses) associated with it, one per subnet, that are also unique.
Regards,
Tim
---

Hierarchical query to combine two groupings into one broad joint grouping

Hi there,
I would like to know if anyone knows a way to solve the problem below with a SQL querie, maybe using some hierarchical queries or window functions (or anything else in SQL for that matter).
My environment is:
Oracle Database 11g Release 11.2.0.2.0 - 64bit
The problem is this:
I have a list of items that are grouped together in two different grouping ways (two columns).
This gives the ability for items to be linked to other items in two ways:
1. Directly if both have same value on GROUP1 and/or GROUP2;
2. indirectly if they have an item in common with at least one match on either GROUP1 or GROUP2.
The idea is to start from this dataset:
WITH T AS
SELECT 1 AS ITEM_ID, 'A' AS GROUP1, 100 AS GROUP2 FROM DUAL UNION
SELECT 2 AS ITEM_ID, 'A' AS GROUP1, 100 AS GROUP2 FROM DUAL UNION
SELECT 3 AS ITEM_ID, 'A' AS GROUP1, 101 AS GROUP2 FROM DUAL UNION
SELECT 4 AS ITEM_ID, 'B' AS GROUP1, 100 AS GROUP2 FROM DUAL UNION
SELECT 5 AS ITEM_ID, 'B' AS GROUP1, 102 AS GROUP2 FROM DUAL UNION
SELECT 6 AS ITEM_ID, 'C' AS GROUP1, 103 AS GROUP2 FROM DUAL UNION
SELECT 7 AS ITEM_ID, 'D' AS GROUP1, 101 AS GROUP2 FROM DUAL
SELECT * FROM T;
And end up with this dataset with a one single joint grouping:
WITH T AS
SELECT 1000 AS JOINT_GROUP_ID, 1 AS ITEM_ID FROM DUAL UNION
SELECT 1000 AS JOINT_GROUP_ID, 2 AS ITEM_ID FROM DUAL UNION
SELECT 1000 AS JOINT_GROUP_ID, 3 AS ITEM_ID FROM DUAL UNION
SELECT 1000 AS JOINT_GROUP_ID, 4 AS ITEM_ID FROM DUAL UNION
SELECT 1000 AS JOINT_GROUP_ID, 5 AS ITEM_ID FROM DUAL UNION
SELECT 1000 AS JOINT_GROUP_ID, 7 AS ITEM_ID FROM DUAL UNION
SELECT 2000 AS JOINT_GROUP_ID, 6 AS ITEM_ID FROM DUAL
SELECT * FROM T;The relationships are:
Item 1 is linked to Item 2 by GROUP1 and GROUP2;
Item 1 is linked to Item 3 by GROUP1 only;
Item 1 is linked to Item 4 by GROUP2 only;
Item 1 is linked to Item 5 through Item 4 by GROUP1;
Item 1 is linked to Item 7 through Item 3 by GROUP2;
Item 6 is not linked to any other item since it does not match on GROUP1 nor GROUP2 with any other item.
NOTEs:
- JOINT_GROUP_ID values could be any sequential value. I used 1000 and 2000 just to avoid confusion with the other IDs and group values used to picture the problem.
- The level of relationship is not restricted to 2 like the example above. There could be deeper relationships.
This seems to me like something that could be solved with a hierarchical query, but I could not get my head around it to solve the problem.
Hope one of you guys can help me on this.
Chears.

Hi Bruno,
You are correct. Frank's solution does not work. You can do this using CONNECT BY on smaller problems, but it will be very inefficient for larger problems wirth significant looping. I wrote a quick blog article on this subject after reading your question this morning. This is actually an example of a very general class of problems and I already had three SQL solutions. I'll put the CONNECT BY one here, and you can look at my blog if you want more details (I include a diagram so I can't just post it here).
Data
item_groups
SQL> SELECT *
2    FROM item_groups
3 /
ITEM_ID    GROUP1                         GROUP2
01         A                              100
02         A                              100
03         A                              101
04         B                              100
05         B                              102
06         C                              103
07         D                              101
08         E                              104
09         E                              105
10         F                              106
10 rows selected.Query
WITH links_v AS (
SELECT t_fr.item_id node_id_fr,
       t_to.item_id node_id_to,
       t_fr.item_id || '-' || Row_Number() OVER (PARTITION BY t_fr.item_id ORDER BY t_to.item_id) link_id
FROM item_groups t_fr
JOIN item_groups t_to
    ON t_to.item_id > t_fr.item_id
   AND (t_to.group1 = t_fr.group1 OR t_to.group2 = t_fr.group2)
), nodes_v AS (
SELECT item_id node_id
   FROM item_groups
), tree AS (
SELECT link_id, CONNECT_BY_ROOT (link_id) root_id
FROM links_v
CONNECT BY NOCYCLE (node_id_fr = PRIOR node_id_to OR node_id_to = PRIOR node_id_fr OR
                     node_id_fr = PRIOR node_id_fr OR node_id_to = PRIOR node_id_to)
), group_by_link AS (
SELECT DISTINCT Min (root_id) OVER (PARTITION BY link_id) group_id, link_id
FROM tree
), linked_nodes AS (
SELECT g.group_id, l.node_id_fr node_id
FROM group_by_link g
JOIN links_v l
    ON l.link_id = g.link_id
UNION
SELECT g.group_id, l.node_id_to
FROM group_by_link g
JOIN links_v l
    ON l.link_id = g.link_id
SELECT l.group_id "Network", l.node_id "Node"
FROM linked_nodes l
UNION ALL
SELECT '00 (unlinked)', node_id
FROM nodes_v n
WHERE n.node_id NOT IN (SELECT node_id FROM linked_nodes)
ORDER BY 1, 2Output
Network       Node
00 (unlinked) 06
              10
01-1          01
              02
              03
              04
              05
              07
08-1          08
              09

Read aloud EPUB. Group two spans with one id.

I want two words, each on its own span (each has a different style. That's why it has to be two spans) to light up at the same time.
I tried grouping them on one span, or div with the same smil id. But it only lights up the first word.
Any idea how to make this work?
Thanks a bunch!

Hi Jeremy,
The access point only supports to have one BVI1 interfaced configured with an IP address since it is a basic layer 2 device.
Since it is IOS based you can try to configure an Ip address to more then one BVI1 but this will not work since the AP only supports an IP address configured on the BVI1 interface for managment of the unit.
Know the access point allows us to configure VLANs and for VLANS to work we need to link each VLAN to an specifc bridge group leaving always the bridge group one that is linked to the BVI1 for the VLAN the access point has an IP address of and set as native VLAN.
Here is the link that explains how VLANs work on the access points.
http://www.cisco.com/en/US/products/hw/wireless/ps4570/products_configuration_example09186a00801d0815.shtml
If you work with VLANs you can have different subnets or VLANs linked to each SSID and each SSID with an specifc security method.

Two resource groups one on each node.

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