Configuration of high availability.

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• Configuration of high availability in vSphere alarms

  Hello

  We have three ESXi hosts in a cluster and, recently, one of the hosts that failed (I have connected a matter of pension with VMWare to get assistance to research into why).  The virtual machines on this host automatically migrate to the other two hosts in the cluster, but we did not know that this had happened until we saw some VMS showing high CPU ready using vCOPs.

  My boss asked me to alert us if the high availability feature is used as it was the case here.  I looked on Google and the VMWare Web site, but I can't find anything specific but I've only worked with VMWare products for about a month so it could well be that I'm looking for simply not the right thing.

  I would be grateful for any help, as I have said that I am very new to VMWare, so I hope I got all the information that is needed, if it's not made me know.

  See you soon,.

  Ben.

  There are quite a few definitions standard alarm, you can use. Maybe there's a useful alarm because you can find them in the 'Alerts' tab

  Name	Description
  ----	-----------

  Insufficient vsphere HA failover resources default alarm to be alerted when there are insufficient for vSphere HA cluster resources to ensure failover

  vSphere HA failover in progress	Alarm by default to be alerted when vSphere HA is failing on virtual machines
  Cannot find vSphere HA master agent	Default alarm to alert when vCenter Server could not connect to a main agent of vSphere HA for an extended period
  Status of the vSphere HA host	By default the alarm to monitor the status of a host such as reported by vSphere HA

  vSphere HA failover the virtual machine has no alarm alert default when vSphere HA does not failover a virtual machine

  HA vSphere virtual machine followed the default action to alarm to alert when vSphere HA reset a virtual machine

  vSphere HA machine virtual error default monitoring alert alarm when vSphere HA could not reset a virtual machine

  Insufficient vsphere HA failover resources default alarm to be alerted when there are insufficient for vSphere HA cluster resources to ensure failover

  vSphere HA failover in progress	Alarm by default to be alerted when vSphere HA is failing on virtual machines
  Cannot find vSphere HA master agent	Default alarm to alert when vCenter Server could not connect to a main agent of vSphere HA for an extended period
  Status of the vSphere HA host	By default the alarm to monitor the status of a host such as reported by vSphere HA

  vSphere HA failover the virtual machine has no alarm alert default when vSphere HA does not failover a virtual machine

  HA vSphere virtual machine followed the default action to alarm to alert when vSphere HA reset a virtual machine

  vSphere HA machine virtual error default monitoring alert alarm when vSphere HA could not reset a virtual machine

• How to set up the single instance of data of high availability and disaster tolerance

  Hi Experts,

  I have unique database and instance need to configure for high availability and disaster tolerance

  What are the DR options available for synchronization of database at a remote site with a delay of 5 to 10 minutes.

  Application connects to the local site and DR site should be the remote site.

  1 oracle FailSafe with SAN?

  2. What is the security integrated on linux centos/oel solution?

  3. If the storage is on the San (for example) then is it possible to set up a shell script

  which detects if the source database is down for 5 minutes, ride the SAN stored the files of database on the remote computer and

  change the ip in the application, so it will never connect to the source ip address

  Thank you and best regards,

  IVW

  Hello

  Rupture can occur in any level

  1 oracle FailSafe with SAN?

  --> Do check if you have failure in storage, your security will do nothing to bring back data

  --> Seen failsafe, will be only the insurance when MS cluster moving the disc and services to different node, configured services starts.

  2. What is the security integrated on linux centos/oel solution?

  --> Under linux, you need to set the scripts to run, and you can check the option on the cluster OS

  3. If the storage is on the San (for example) then it is possible to configure a shell script that detects if data source is down for 5 minutes, mount SAN stored the files of database on the remote computer and

  change the ip in the application, so it will never connect to the source ip address

  --> This you will get a cluster of BONES...

  Points to note:

  ================

  --> If there is power failure sudden, we can expect there may be lost writing in your data block, which will bring the inconsistency to your data file and redo

  --> Here, there is problem with your drive?

  --> If there is problem with your complete domain controller (how will you mount FS to a remote server?)

  Note what we are discussing was HA and you try to keep an idle server all the time (you have a server with more RAM & CPU)

  Why you can't check an option of CARS, can also have the cluster extension...

  And to avoid the loss of data and to meet the RPO and RTO in all time (same DC came down, storage failure, server crash), you may need to use Oracle data guard...

  Ask questions if you have

  Thank you

• ODI 11 g high availability features

  Hello

  Is there a link to all official documentation describing how ODI can be configured for high availability, and more specifically, which described how agents and repositories behave in case of failure.

  I saw the notes on how to configure the load balancing between two or more agents.

  However, I would like to know what happens if an agent fails:

  • Is there a process of follow-up that imprisons the failure and tries to restart the agent?
  • In this case, the ODI load balancer will be perfectly direct traffic only to available agents.
  • What happens if the agent fails in the middle of a stage of script performance?
  • Will of the database session, getting lost and rollback?
  • Stop the script or remaining available agents will manage the process of running success?

  Similar requests are the repository itself - if the master repository database or the work fails what is happening? Assuming, the repository is installed on a multiple-node cluster environment, if only one node fails, everything will run scenario fail (and need to reboot) or that there is a transparent failover to the remaining nodes in the cluster housing deposits ODI?

  I have a requirement where the ETL (ODI) system must be available 99.5% of the year and thus resilience is a key factor and I need to understand the capabilities.

  I need to know if high in ODI availability simply means that a process is restarted, if a node or agent fails, or if an existing process will continue until the end due to a transparent failover.

  see you soon,

  John

  Take a look at the link below:

  http://www.rittmanmead.com/2012/03/deploying-ODI-11g-agents-for-high-availability-and-load-balancing/

  I hope this has given a table on this topic clear about close.

  Apart from this we use EM to monitor the status of the Agent.

  See you soon!

  SH! going

• vCO 5.5 high availability / load balancer configuration

  I do a planning for a new deployment of vCO 5.5 and I would like to take advantage of the new features for high availability, but documentation seems to be a little lacking in Department of load balancer. I hope someone knows the answers to the following questions using zero in on possible configurations for load balancing options:

  Calls to instances of vCO they state or can I use a setting of type stateless round robin for the configuration of lb or what do I need to support sessions?

  Is there a health control end point which I can query the load balancer to automatically remove service instances in a configuration active / active failure? If there isn't a specific is a good audit can be done to create a service to act as a health check?

  Did he already works with a configuration similar and willing to share their experiences?

  Hello

  You can read the following article which explains how to configure Nginx as the load balancer. I hope it's useful.

  VMware KB: Nginx Configuration load lalancing software VMware vCenter Orchestrator 5.5

  Kind regards

  Radostin

• High availability of components in the design of vWorkspace tips

  Hi all

  Would ask you some advice regarding the design of vWorkspace components highly available. Suppose that vWorkspace components will be deployed in vSphere or hypervisors managed SCVMM hence HA is in place, if the failure of a host. In this situation, if we still need components redundant (n + 1 VMS) vWorkspace?

  On the other note, I understand that we can add a couple of broker for vWorkspace in vWorkspace Management Console connections and based on KB 99163 it would just work. I'm not sure how the traffic would be when an application is web access? As in, I guess that the connection broker news would be 'defined' at the request of the web call to the broker for connections. Or this is done automatically? Access Web would choose randomly from the broker for connections to go?

  Thanks for any advice in advance

  Kind regards

  Cyril

  Hi Cyril,.

  Big questions. As with any IT architecture in layers, you must plan HA and redundancy at all points of failure required by your environment or level of Service (SLA) agreements. For vWorkspace, the center of his universe is SQL and you must plan accordingly the failure and recovery. In some environments, full backup can meet the requirement of HA. In others, full SQL Cluster, Mirroring, replication, or Always-On configurations may be required. With our broker, we recommend N + 1 deployment in most scenarios HA. When you move peripheral components or enabling, you must evaluate each component and needs its impact of failure as well as its valuation to determine the appropriate AP.

  Load balancing between several brokers is done automatically by logic in the client connectors. In the case of Web access, when you configure the site Web Access in the Management Console, it includes broker list in the Web access configuration xml file. As client connectors, Web Access includes balancing logic that distributes the client load on brokers available automatically.

  If you have any questions about specific components and requirements of HA or architecture, please add them in the discussions.

• WLC 5508 high availability

  Hello

  Today I have two WLC 5508 (with license for 100 AP each of them), on a single site.

  The WLC work availability (active-standby).

  However, we have a new scenario, with 02 sites: A and B (attachment).

  I would like to know if it is possible to work as follows:

  The WLC - A as the main controller of site A. WLC - B as a backup (BDC) of WLC.-a.

  The WLC - B that has the PDC site B. WLC - as a backup (BDC) to WLC - B.

  For example:

  If WLC - a falls, site access Points are managed by B WLC site - B and vice versa.

  Is this possible?

  How can I configure the new scenario? Don't forget, there is a site-to-site between Site A and Site b.

  Another point:

  If I add more than 50 APs on Site A. How does the license number?

  Should I buy a license for the two WLC?

  TKS,

  >....

  >.. .is it possible?

  No. , high availability in terms of controller is supposed to be what is said, the backup controller is not 'full' - stby and cannot play other roles.

  M.

• Deployment of high availability of the IPCC 4.5

  In a future HD architecture implementation, the voice service will provide CallManager 5.0, that will integrate with 4.5 of the IPCC. 4.5 (required with 5.0 CM) IPCC does implement a high availability. How can we ensure that technical support continues to operate if the IPCC goes down? One possibility might be to configure CM such that if the IPCC goes down, all the number of help desk calls are automatically and immediately headed to a group (which includes all extensions help desk). This redirection can be configured in CM? Is there a better option?

  Thanks in advance,

  SB

  This is your best bet. On the road Points for your call center just put the call before busy, no answer and failure to the fighter pilot. Thus, when the IPCC Express Server is down it will sent to your fighter pilot.

  Please evaluate the useful messages.

  adignan - berbee

• Two WLC 5508 anchor high availability

  Hello.

  It is possible use 2 WLC 5508 EN HOW to ANCHOR in an active scenario?.

  For example, if a WLC down the service, another Dungeon provide service to customers of anchor?

  At the moment we have just a WLC 5508 anchor mode. What do I have to configure high availability of the ANCHOR.

  Thank you very much!!!

  You have redundant WLC as anchor points, but if an anchor fails, the user must reconnect.

  There is a feature on the WLC HA, but it is mainly for foreigners redundancy WLC anchor no redundancy. With guest several anchors overseas WLC balance the load between the two. You will not be able to put a primary or backup.

  Sent by Cisco Support technique iPhone App

• NAC Manager high availability peer CAM DEAD

  Hello

  I have two managers of the NAC with high availability and I used both interface eth1 of sides as a link Heartbit.

  I did following steps for high availability.

  (1) synchronize the time between two cams.

  (2) generate a temporary SSL certificate in CAMs and import-export procedure made in the other.

  (3) make a CAM as a primary and the other as secondary.

  But after all this made configuration I can see the State in surveillance > reports-primary CAM is in place in both servers and redundant CAM is down.

  Also on the failover tab, I can see - Local CAM - OK [Active] and counterpart CAM:-DEAD.

  I have attached some screenshots so that you can find the same.

  Your help will be very appreciated.

  Thank you

  Try these steps and check that all steps were followed:

  http://www.Cisco.com/c/en/us/support/docs/security/NAC-appliance-clean-access/99945-NAC-cam-HA.html

• Fabric interconnecting Cisco high availability

  Hi Experts,

  I would like to know,

  (1) what does fabric adapter interconnection cluster (L1, L2) ports are using high availability?

  (2) can form us able to interconnect fabric and fabric interconnection interconnection 6100 6200 to a cluster? If ok means how they exchange of history since the two are completely different material. ?

  Thanks in advance,

  Jako Raj

  Hello

  (1) L1 and L2 ports are used for the purpose of managing only basically to synchronize data management, triggering a possible failover.

  (2) different hardware platforms are supported in the same cluster only in a process of upgrading equipment. Actually what really happens in this meanwhile is the copy of the configuration and the new FI is promoted as primary. Although he works as a group, he is an active-standby cluster, where a single FI acts as principal.

  Kind regards

• ASA 5520 high availability

  I have two ASA 5520 s.  We have an ID card and we didn't. This makes the wizard high availability fail.  Can I manually configure high availability.  I don't really need two ASA-SSM-20 s.  I just want to have an ASA in standby mode.  Is this possible.  Does anyone have a configuration similar to that?

  Thank you

  Alex Pfeil

  The hardware should match. If you want to switch then remove the Sam from the primary or add one in high school.

  Sent by Cisco Support technique iPhone App

• High-availability software ACS 5.2

  Hello

  Can I configure main configuration / backup with the ACS 5.2 on Vmware software? Replication / high availability will happen just as if you use two devices? I need to install two ACS5.2 software on different machines to Vmware.

  concerning

  Joe

  Hey Joe,

  Yes it is possible. Make sure that you meet the requirements listed on this document:

  http://www.Cisco.com/en/us/docs/net_mgmt/cisco_secure_access_control_system/5.2/installation/guide/csacs_vmware.html

  Thank you

  Serge

• ACS high availability

  Hello

  I have ACS solution engine. Currently, it is connected to the switch using a single network adapter. For the

  high availability to change aside, I want to use the second card netwrok thus linking

  the second main switch as well as in the case of connectivity with a carrot switch break. ACS will be accessible via second switch.

  Network card Ip address is currently 192.168.200.14/24

  How to configure the second network adapter on the ACS in order to achieve high availability.

  Hello

  You cannot use the second NETWORK card on GBA.

  The following link mentions "ACS takes care operating an Ethernet connector, but not the two connectors"

  http://www.Cisco.com/en/us/docs/net_mgmt/cisco_secure_access_control_server_for_solution_engine/4.2/installation/guide/solution_engine/ovrvuap.html#wp1053900

  I hope this helps.

  Kind regards

  Anisha

  P.S.: Please mark this message as answered if you feel that your query is resolved. Note the useful messages.

• High availability with two 5508 WLAN controllers?

  Hi all

  We are considerung to implement a new wireless solution based on Cisco WLC 5508 and 1262N Access Points. We intend to buy about 30 access points and have two options: either buy a WLC 5508-50 or, for redundancy to, two controllers 5508-25.

  Is it possible to configure two WLC 5508 as a high availability solution, so that all access points are distributed on the two WLCs and during breaks WLC one another case manages all the APs?

  If we have 30 access points, and one of the two WLC 5508-25 breaks of course that not all access to 30 but only 25 points can be managed by one remaining. Is there some sort of control to choose the access points must be managed and which do not?

  How does such a configuration looks like in general, is the implementation of an installation of two controller quite complex or simple?

  Thank you!

  Michael

  Hi Michael,

  Do not forget that the 5508 works with a system of licensing. The hardware can support up to 500 APs, but it depends on the license that you put in.

  I think 2 5508 with 25 APs license will be more expensive than a 5508 with 50 APs license.

  If you have 2 WLCs, the best is NOT to spread access between the WLCs points. In doing so, you increase the complexity of homelessness (WLCs have to discount customers to each other all the time). If your point was to gain speed, it really doesn't matter as the 5508 can have up to 8 Gbit/s of uplink speed and has the ability of UC to treat 50 APs with no problems at all. So I find it best to have all the access points on 1 WLC, then if something goes wrong, all the APs migrate anyway for the other WLC.

  If you want 50 APs at a 25-degree WLC failover, you can select who will join Yes. The APs have a priority system, so you assign priorities. If the WLC sees it's full capacity but higher priority APs are trying to join, it will kick down-prio APs for the high prio allow to connect.

  WLCs is not exactly "HA." It's just that if you have 2 WLCs work together (as if you had 700 APs and needed to put 2 WLCs) and delivered to customers. Or all APs sat on a WLC and when it breaks down, they join the other available controller.

  The only thing to do is to put each WLC in the same group of mobility so that they know.