High availability for a website

I have an entry on a DNS server for a domain "aa.bb.test.com" which points to 1.1.1.1 which is VIP address on the CSS at the primary site.
i would like to add another css at another site as a backup.
What exactly I have to do to configure the other css as my backup or failover unit? do I have to have another DNS entry for the domain?
could you please also help me in configuring the sticky for the domain (just the basic and simplest sticky type)?
Thanks,

Yes. You have to configure one more DNS entry for the backup unit.

Similar Messages

High Availability for EBS Database 11gR2

Hello Gurus,
We have the below environment:
Oracle Applications - 12.1.3
Oracle Database - 11.2.0.3
OS - Oracle Enterprise Linux 5.7
I would like to know how to achieve high availability for the database. We don't want to go with RAC at this stage. What are the other alternatives to achieve high availability at the database side.
Thanks in advance!
-Khan

I have come across the note id
How To Install An Oracle Database In An Active/Passive Configuration Without RAC? [ID 734361.1]
Can you please confirm if this can be used to configure Database for HA?
Also please confirm if I need to get the two servers configured with any cluster software at Linux level?

High availability for Lync 2013 persistent chat server and office web app server

I have 1500 users, need HA in primary data center and DR also. looking for HA and DR solution for persistent chat server and office web app server.
is below correct?
1. 2 persistent chat server in a pool of primary data center and 1 in DR. can this be reduced or any changes?
2. 2 Office web app server in a pool of primary data center and 1 in DR. can this be reduced or any changes?
also do i need HLB for both roles?

1) In Lync Server 2013, there are improvements in both high availability and disaster recovery:
High availability improvements: SQL Server mirroring is used to provide high availability for the Persistent Chat Server content database and Persistent Chat compliance database within a data center (in-site).
Disaster recovery improvements: Persistent Chat Server supports a stretched pool architecture that enables a single Persistent Chat Server pool to be stretched across two sites (that is, a single logical pool in the topology, with servers in the pool physically
located across two sites). SQL Server Log Shipping is used for cross-site disaster recovery.
For more information about high availability and disaster recovery, see
Configuring Persistent Chat Server for High Availability and Disaster Recovery in the Deployment documentation.
2) for HA & DR, you can 2 Office web app server in a pool of primary data center and 1 in DR. and You will need HLB for office web app servers
http://blogs.technet.com/b/meamcs/archive/2013/03/27/office-web-apps-2013-multi-servers-nlb-installation-and-deployment-for-sharepoint-2013-step-by-step-guide.aspx
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Mai Ali

High Availability for Existing Single Exchange Server holding Multiple Domains

Hi,
I'm trying to implement solution for Backup/Redundancy/High-availability for the existing Exchange Server 2013.
Currently the Exchange Server 2013 deployed on 2012 Server is holding 4 Domains (1 internal domain & 3 public/published domains). The Exchange Server is hosted Internally & published to send & receive mails from the SMTP relay(Third party
resides on internet) server. Client Access & Mailbox Services are on the same server.
Please advice me which is the best scenario to implement a backup/redundancy/high-availability for the current server.
Thanks in advance.
Regards
Roopesh S

Hi,
The following links will help.
High Availability and Site Resilience
http://technet.microsoft.com/en-us/library/dd638137(v=exchg.150).aspx
Deploying High Availability and Site Resilience
http://technet.microsoft.com/en-us/library/dd638129(v=exchg.150).aspx
Planning for High Availability and Site Resilience
http://technet.microsoft.com/en-us/library/dd638104(v=exchg.150).aspx
Backup, Restore, and Disaster Recovery
http://technet.microsoft.com/en-us/library/dd876874(v=exchg.150).aspx
ecsword

11.1.2 High Availability for HSS LCM

Hello All,
Has anyone out there successfully exported an LCM artifact (Native Users) through Shared Services console to the OS file system (<oracle_home>\user_projects\epmsystem1\import_export) when Shared Services is High Available through a load balancer?
My current configuration is two load balanced Shared Services servers using the same HSS repository. Everything works perfectly everywhere except when I try to export anything through LCM from the HSS web console. I have shared out the import_export folder on server 1. And I have edited the oracle_home>\user_projects\epmsystem1\config\FoundationServices1\migration.properties file on the second server to point to the share on the first server. Here is a cut and paste of the migration.properties file from server2.
grouping.size=100
grouping.size_unknown_artifact_count=10000
grouping.group_by_type=Y
report.enabled=Y
report.folder_path=<epm_oracle_instance>/diagnostics/logs/migration/reports
fileSystem.friendlyNames=false
msr.queue.size=200
msr.queue.waittime=60
group.count=10000
double-encoding=true
export.group.count = 30
import.group.count = 10000
filesystem.artifact.path=\\server1\import_export
I perform an export of just the native users to the file system, the export fails stating and I find errors in the log stating the following.
[2011-03-29T20:20:45.405-07:00] [EPMLCM] [NOTIFICATION] [EPMLCM-11001] [oracle.EPMLCM] [tid: 10] [ecid: 0000Iw4ll2fApIOpqg4EyY1D^e6D000000,0] [arg: /server1/import_export/msr/PKG_34.xml] Executing package file - /server1/import_export/msr/PKG_34.xml
[2011-03-29T20:20:45.530-07:00] [EPMLCM] [ERROR] [EPMLCM-12097] [oracle.EPMLCM] [tid: 10] [ecid: 0000Iw4ll2fApIOpqg4EyY1D^e6D000000,0] [SRC_CLASS: com.hyperion.lcm.clu.CLUProcessor] [SRC_METHOD: execute:?] Cannot find the migration definition file in the specified file path - /server1/import_export/msr/PKG_34.xml.
[2011-03-29T20:20:45.546-07:00] [EPMLCM] [NOTIFICATION] [EPMLCM-11000] [oracle.EPMLCM] [tid: 10] [ecid: 0000Iw4ll2fApIOpqg4EyY1D^e6D000000,0] [arg: Completed with failures.] Migration Status - Completed with failures.
I go and look for the path that it is searching for "/server1/import_export/msr/PKG_34.xml" and find that this file does exist, it was infact created by the export process so I know that it is able to find the correct location, but it then says that it can't find it after the fact. I have tried creating mapped drives and editing the migration.properties file to reference the mapped drive but it gives me the same errors but with the new path. I also tried the below article that I found in support with no result. Please advise, thank you.
Bug 11683769: LCM MIGRATIONS FAIL WHEN HSS IS SET UP FOR HA AND HSS IS STARTED AS A SERVICE
Bug Attributes
Type B - Defect Fixed in Product Version 11.1.2.0.000PSE
Severity 3 - Minimal Loss of Service Product Version 11.1.2.0.00
Status 90 - Closed, Verified by Filer Platform 233 - Microsoft Windows x64 (64-bit)
Created 25-Jan-2011 Platform Version 2003 R2
Updated 24-Feb-2011 Base Bug 11696634
Database Version 2005
Affects Platforms Generic
Product Source Oracle
Related Products
Line - Family -
Area - Product 4482 - Hyperion Lifecycle Management
Hdr: 11683769 2005 SHRDSRVC 11.1.2.0.00 PRODID-4482 PORTID-233 11696634Abstract: LCM MIGRATIONS FAIL WHEN HSS IS SET UP FOR HA AND HSS IS STARTED AS A SERVICE*** 01/25/11 05:15 pm ***Hyperion Foundation Services is set up for high availability. Lifecycle management migrations fail when running Hyperion Foundation Services - Managed Server as a Windows Service. We applied the following configuration changes:Set up shared disk then we modify the migration.properties.filesystem.artifact.path=\\<servername>\LCM\import_export We are able to get the migrations to work if we set filesystem.artifact.path=V:\import_export (a maped drive to the shared disk) and we run Hyperion Foundation Services in console mode.*** 01/25/11 05:24 pm *** *** 01/28/11 03:32 pm *** (CHG: Sta->11)*** 01/28/11 03:32 pm *** (CHG: Comp. Ver-> 11.1.2 -> 11.1.2.0.00)*** 01/28/11 03:34 pm *** (CHG: Base Bug-> NULL -> 11696634)*** 02/02/11 01:53 pm *** (CHG: Sta->41)*** 02/02/11 01:53 pm ****** 02/02/11 05:18 pm ****** 02/03/11 10:30 am ****** 02/04/11 03:53 pm *** *** 02/04/11 03:53 pm *** (CHG: Sta->80 Asg->NEW OWNER)*** 02/10/11 08:49 am ****** 02/15/11 11:59 am ****** 02/15/11 04:56 pm ****** 02/16/11 09:58 am *** (CHG: Sta->90)*** 02/16/11 09:58 am ****** 02/16/11 02:12 pm *** (CHG: Sta->93)*** 02/24/11 06:14 pm *** (CHG: Sta->90)Back to top

it is not possible to implement a kind of HA between two different appliances 3315 and 3395.
A node in HA can have the 3 persona.
Suppose Node A (Admin(primary), monitoring(Primary) and PSN).
Node B(Admin(Secondary), Monitoring(Secondary) and PSN).
If the Node A is unavailable, you will have to promote manually the Admin role to Primary.
Although the best way is to have
Node A Admin(Primary), Monitoring(Secondary) and PSN
Node B Admin(Secondary), Monitoring (Primary) and PSN.
Rate if helpful and Marked As correct if it is correct for the experts.
Regards,

URL to be used in high availability for Directory Server

Hi All,
I have an environment configured for high availability. I have two OVD and OID servers each in this environment, configured in high availability. What should be the value in the Server URL field of the Directory Server IT Resource in the OIM for this environment? In the normal environment, I had it as "ldap://ovdhost01:6501" and it was working fine. But since there are two servers here, I am not sure what URL to use in place of this. The entry for the two ovd hosts in the OHS is "idstore.com" which is configured on 6501 port. But I tried using the following URLs and none of them worked:
1. idstore.com
2. ldap://idstore.com
3. ldap://idstore.com:6501
4. ldap://ovdhost01:6501,ldap://ovdhost01:6501
Can someone help me know the correct URL to be used in this case?
Thanks,
$id

Not sure about OVD or OID but for SOA and OIM:
SOA:
XMLConfig -> XMLConfig.SOAConfig -> SOAConfig
Rmiurl -> t3://soahost1:soaport1,soahost2:soaport2
Soapurl -> Load balancer or web server url (without the /workflow context)
OIM:
XMLConfig -> XMLConfig.DiscoveryConfig -> Discovery
OimFrontEndUrl -> Load balance or web server url (without the /oim context)
And ofcourse on your LB or WebServer, you need to configure these:
SOA: http://docs.oracle.com/cd/E23943_01/core.1111/e10106/ha_soa.htm#CHDDJEGD
OIM: http://docs.oracle.com/cd/E21764_01/core.1111/e10106/imha.htm#BGBDFEIE
-Bikash

HIGH AVAILABILITY for ORACLE E-Business Suite

hai..
i am new to oracle apps administraion.i would like to know one thing.i now how to mantain high availability in the database using rac, dataguard and other concepts.but i would like to know how to mantaing high availability in oracle e-busines suite. is there any clustering concetps in apps? bcas at the database level using rac we can configure number of instances. here is it possible to mantian two or more web or forms..servers simultaneously using clustering concepts? any related papers or there? please guide me.
thanks..
srinivas pvs

Maximum Availability Architecture (MMA) and Solutions for Oracle Apps 11i can be found in the following links:
Note: 403347.1 - Maximum Availability Architecture and Oracle E-Business Suite Release 11i
https://metalink.oracle.com/metalink/plsql/ml2_documents.showDocument?p_database_id=NOT&p_id=403347.1
Note: 207159.1 - Oracle E-Business Suite Release 11i Technology Stack Documentation Roadmap
https://metalink.oracle.com/metalink/plsql/ml2_documents.showDocument?p_database_id=NOT&p_id=207159.1

High availability for AS forms & Reports

Hi,
i like to know the best solution for high availability of Oracle Application Server(10g) Forms & Reports Services ...as load balancing is not done for forms & reports with the oracle high availability solution( i guess i am rite).any suggestions
thanks
mish

Well, install Oracle AS Forms and Reports on two different nodes and configure your Forms and Reports services on both of them. Use a virtual host configuration to load balance (by hardware load balancer) to both hosts which are the resources. Use the webcache (standalone or the one that came with the install) to map the virtual host to the resources on the two hosts. Use REPORTS_SERVERMAP to map the name of the 'cluster' reports server to the local reports server, ie REPORTS_SERVERMAP=app:app1 on node 1 and REPORTS_SERVERMAP=app:app2 on node 2. Use REPORTS_SERVERMAP=app:app1;appl:appl1 to add more applications/reportservers. Set REPORTS_SERVERMAP in O_H/forms/servers/default.env and the application env files and under O_H/reports/conf/rwservlet.properties.

High Availability for SAProuter

Dear all
Is it possible to create a high available SAProuter somehow.
We currently have two instances which have load balancing. However, if one goes down, all connections from that are lost since SAProuter hold these in memory.
Any advice or tips are welcome.

Hi Miguel,
Since there are no switch and load balancing mechanisms for SAProuter, you can take the following measures to increase availability:
1) Switchover solution with cluster refer link http://help.sap.com/saphelp_nw70/helpdata/en/f4/525c3c3906b006e10000000a11402f/frameset.htm
2) have Redundant SAProuter
Hope this is useful
Regards
Umesh

Choosing VM as high availability for BizTalk's SQL Server databases

Hi,
I'm lloking to choose the architecture of our BizTalk 2013 solution.
The application server will be build on virtual machines, but I still have interrogation about the SQL Server.
Is a SQL Server on a VM supported for BizTalk 2013 ?
Because in case of physical failure, the VM moved to another server can we considered the VM as a solution of High-Availability ?
thanks for your reply.

When the SQL VM fails over what attributes of the server will change? If everything including the server name, the mapped SAN locations (for Databases) and/or the versions of SQL will remain the same then it will behave like a temporary network outage between
the Front-end and the SQL.
If however, the failed over VM has a different set of mapped location for DB then you would need to establish a BizTalk Log Shipping between SQL VM 1 and SQL VM 2. In this scenario, the recovery will require time and cannot be automatic.
A word of caution though. If you have SLA's pertaining to transactions/messages per second with the customer then you might want to evaluate having dedicated boxes of SQL. The SQL Licensing is PER CORE and in a VIRTUAL ENVIRONMENT all the
CORES have to be licensed since the Virtualization does not permit you to BIND the VM to a specific set of CORES. The same would apply for your BizTalk Servers. This just might work out costlier as opposed to the dedicated server environment.
Regards.

High availability for file server and exchange with 2 physical servers

Dear Experts,
I have 2 physical server with local disks only. I want to setup below on same with high availability, please advise best prossible options. We will be using windows 2012 R2 Server..
1. Domain controller
2. Exchange 2013
As of now I am thinking of setting up below:
1. Install Hyper-v on both and create 3 VM on each as
-On Host A- 1 VM for DC, 1 VM for File server with DFS namespace and replication for file server HA and 1 VM for Exchange 2013 with CAS/MBX with DAG and DNS RR for Exchange HA
-On Host B - 1 VM for ADC, 1 VM for File server DFS member for above and 1 VM for Exchange 2013 CAS/MBX with DAG member
I have read on internet about new features called scale out file server (SoFS) in Windows 2012 Server but not sure that will be preferred for file sharing.
Any advise will be highly appreciated..
Thanks for the help in advance..
Best regards,

Dear Experts,
I have 2 physical server with local disks only. I want to setup below on same with high availability, please advise best prossible options. We will be using windows 2012 R2 Server..
1. Domain controller
2. Exchange 2013
As of now I am thinking of setting up below:
1. Install Hyper-v on both and create 3 VM on each as
-On Host A- 1 VM for DC, 1 VM for File server with DFS namespace and replication for file server HA and 1 VM for Exchange 2013 with CAS/MBX with DAG and DNS RR for Exchange HA
-On Host B - 1 VM for ADC, 1 VM for File server DFS member for above and 1 VM for Exchange 2013 CAS/MBX with DAG member
I have read on internet about new features called scale out file server (SoFS) in Windows 2012 Server but not sure that will be preferred for file sharing.
Any advise will be highly appreciated..
Thanks for the help in advance..
Best regards,
DFS is by far the best way to implement any sort of file server. Because a) failover is not fully transparent and does not happen always (say not on copy ) b) DFS cannot replicate open files so if you edit a big file and have node rebooted you're going to
lose ALL transactions/updates you've applied c) actually slows down the config. See:
DFS for failover
http://help.globalscape.com/help/wafs3/using_microsoft_dfs_for_failover.htm
DFS FAQ
http://technet.microsoft.com/library/cc773238(WS.10).aspx
(check "open files" point here)
DFS Performance
http://blogs.technet.com/b/filecab/archive/2009/08/22/windows-server-dfs-namespaces-performance-and-scalability.aspx
SoFS a) requires shared storage to run and you don't have one b) does not support generic workloads
(only Hyper-V and SQL Server) and c) technically makes sense to expand SAS JBOD or existing FC SAN to numerous Hyper-V clients over 10 GbE w/o need to invest money into SAS switches and HBAs and FC HBAs and new licenses FC ports. Making long story short:
SoFS is NOT YOUR CASE.
SoFS Overview
http://technet.microsoft.com/en-us/library/hh831349.aspx
http://www.aidanfinn.com/?p=12786
http://www.aidanfinn.com/?p=12786
For now you need to find some shared storage to be a back end for your hypevisor config (SAS JBOD from supported list, virtual SAN from multiple vendors like for example StarWind see below, make sure you review ALL the vendors) and then you create a failover
SMB 3.0 share for your file server workload. See:
Clustered Storage Spaces over SAS JBOD
http://technet.microsoft.com/en-us/library/jj822937.aspx
Virtual SAN from inexpensive SATA and no SAS or FC
http://www.starwindsoftware.com/native-san-for-hyper-v-free-edition
Failover
SMB File Server in Windows Server 2012 R2
http://www.starwindsoftware.com/configuring-ha-file-server-on-windows-server-2012-for-smb-nas
Fault
tolerant file server on just a pair of nodes
http://www.starwindsoftware.com/ns-configuring-ha-file-server-for-smb-nas
For Exchange you use SMB share from above for a file share witness and use DAG. See:
Exchange DAG
Good luck! Hope this helped :)
StarWind VSAN [Virtual SAN] clusters Hyper-V without SAS, Fibre Channel, SMB 3.0 or iSCSI, uses Ethernet to mirror internally mounted SATA disks between hosts.

BPEL High Availability for various adapter configurations

Hello,
I have created a BPEL process that uses DBAdapter to poll for inserts into a table using a sequence file on the file system. This is one of the options for the DBAdapter. This adapter is called from an "receive" activity.
My understanding is that a bpel internal process schedules the adapter to check the sequence file at intervals. When the sequence value is read a query is executed to determine if there are inserts/updates. If so, a new process instance is created.
Now, how would this work in a HA situation? (Assume a LB in front of two bpel instances with oracle http server (ohs))
Are there two processes polling the sequence file, one in each bpel instance ?
Are the requests funnelled through the Load Balancer address ? (In effect being made from the application server tier back out to the load balancer at the "front").
This is probably a specific example of a general question about event-driven processes and high availability.
Thanks in advance, this important for a customer who has a large volume of transactions that require multiple nodes to manage the load and will be using FileAdapter and DBAdapter to receive the events.

No answer

High Availability for the news versions

Hi,
Somebody knows, which is the HA strategy for a System (CRM 7.0) with one server for Abap and other server for Java?
May be:
Two servers:
NodeA: Abap Database and Abap Central Instance
NodeB: Java Database and Java Central Instance
OR
NodeA: Abap Database and Java Database
NodeB: Abap Central Instance and Java Central Instance
Four servers:
NodeA: Abap Database
NodeB: Abap Central Instance
NodeC: Java Database
NodeD: Java Central Instance
Thanks.

Take a look at FAQ and other documents at [High Availability]

High availability for Web front END server

Dear All
I am unable to understand the high availability model for Web front end server
I am currently working on MOSS 2007/IIS 7 but I think for all versions it will remain the same
I am now running single WFE server and my installation mode allow for adding extra servers to the Farm
now when I add Extra server what will happen next ? should I add extra web application and site collections ? will load balancing include lists, library items and workflows
how this stuff will be stored on one database
it's too vague to me so extra explanation will be appreciated
Regards

To get a fault tolerant environment you need to do two things.
1) Add a second server that is running the the Microsoft SharePoint Foundation Web Service. That's the service that responds to calls for the web site making the server a WFE.
2) Implement some form of load balancing to distribute HTTP requests for SharePoint web sites to the two servers. This can be done with something as simple as Windows Network Load Balancing or with dedicated hardware like an F5 Load balancer.
Once you've added a load balancer and a second server you don't need to do anything else.
Paul Stork SharePoint Server MVP
Principal Architect: Blue Chip Consulting Group
Blog: http://dontpapanic.com/blog
Twitter: Follow @pstork
Please remember to mark your question as "answered" if this solves your problem.

SQL 2012 AlwaysON High Availability for SharePoint 2013

Our Company have 2 Webfront Servers for Sharepoint 2013 and one Database SQL 2012 Server.
We got one more Server & we don't have Storage so need to configure Always On.
There are Some Confusions:
1- Database Server is in production, so how much down time required to Achieve the AlwaysOn?
2- What are the Changes need to be done on Production Server?
3- What are the Steps to be followed While Configuring new Database Server?
Regards,

Hi Genius1985,
According to your description, you want to configure a SQL Server 2012 AlwaysOn Availability Group for your database, right?
Question 1: Database Server is in production, so how much down time required to achieve the AlwaysOn?
There is no a certain downtime for AlwaysOn, it depends on the configuration of our AlwaysOn Availability Group, normally it can be several seconds or minutes. In order to understand why there is downtime for SQL Server with Microsoft Clustering, please refer
to the following article:
http://www.mssqltips.com/sqlservertip/1882/understanding-why-there-is-still-downtime-for-sql-server-with-microsoft-clustering/
Question 2 and 3: What are the Changes need to be done on Production Server? What are the Steps to be followed While Configuring new Database Server?
Since AlwaysOn Availability Groups require a Windows Server Failover Cluster, we first need to add the Windows Failover Cluster Feature to all the machines running the SQL Server instances that we will configure as replicas.
Once the Windows Server Failover Cluster has been created, we need to proceed with enabling the AlwaysOn Availability Groups feature in SQL Server 2012. This needs to be done on all of the SQL Server instances that we will configure as replicas in our
Availability Group.
For more details about Step-By-Step: Creating a SQL Server 2012 AlwaysOn Availability Group, please refer to the following article:
http://blogs.technet.com/b/canitpro/archive/2013/08/20/step-by-step-creating-a-sql-server-2012-alwayson-availability-group.aspx
If you have any question, please feel free to let me know.
Regards,
Jerry Li

High availability for a website

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