Hi Jim,
Thank you very much for your input. Unfortunately the load balancer solution won't be appropriate for my case. I intend to have the two SpectroServers at two different locations several hundred km away. The reason behind this setup is to have one SpectroServer available when one of the two sites is down; for restarts and other "quick" scenarios, the fault tolerance is not really necessary. I had no idea that OneClick can "switch connections" to different SS depending on their availability. Now I have noticed the field "Backup Location Server Name" in Spectrum Configuration. Thanks again J Regards, ============================================ Eugen NAIMAN IT Officer ICT Infrastructure Department Health and Human Services 5/99 Bathurst Street, Hobart, 7000 (: (03) 6233 8565 Ê: (03) 6233 6297 [email protected] ============================================ From: Pfleger, Jim [mailto:[email protected]] Sent: Friday, 13 January 2012 2:44 AM To: spectrum Subject: Re: [spectrum] Fault Tolerance and OneClick Eugen- Any OneClick servers you set up will automatically use the primary SpectroServer when it's available and the secondary SS when the primary SS is down. There is no notion of a "primary" or "secondary" OC server though, so your users can log into either and get full functionality. In our environment we've also configured a load balancer in front of our OC servers. However, this is only a convenience for our users, so that they do not need to know which OC servers are available or down for maintenance. Because OneClick requires stateful connections, when a user is connected to a particular OC server through the load balancer, if that server goes down, the user must close OneClick and log back in through the load balancer to a different server. We cannot fail over an existing session from one OC server to another. However, if the primary SpectroServer goes down, the OC servers (and thus all their existing sessions) will automatically fail over to the secondary SS. HTH, Jim On 1/10/12 5:32 PM, "Naiman, Eugen" <[email protected]> wrote: Hi, I am thinking to set a Fault Tolerant Spectrum environment. I've read the manual but something wasn't in there; what about OneClick? OK, I will have the two SpectroServers but how should I go about OneClick? Scenarios: - 2x OneClick servers. Each one of them installed "close" to their SpectroServers and each one configured to connect to one SpectroServer? - 1x OneClick server in a "neutral" location to connect to both primary and secondary? For a proper Fault Tolerance, I think that 2xOneClick will be necessary because if I have only 1xOneClick and that one is "down" then there is no use in having a SpectroServer up and running - I won't be able to see the alarms anyway. When using 2xOneClick - how to set them up? Sorry about these questions. I have no experience in Fault Tolerance and all I have is "common sense". Why I am not asking the CA support? It will take much longer (but I'll do it if need be). Thanks, Regards, ============================================ Eugen NAIMAN IT Officer ICT Infrastructure Department Health and Human Services 5/99 Bathurst Street, Hobart, 7000 (: (03) 6233 8565 Ê: (03) 6233 6297 [email protected] Want to Get Healthy? The Tasmanian Government's Get Healthy Information and Coaching Service(R) provides free information and coaching support to Tasmanian adults who would like to learn healthier eating habits, be more active or achieve and maintain a healthy weight. 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If you are not such a person, you are warned that any disclosure, copying or dissemination of the information is unauthorised. If you have received the transmission in error, please immediately contact this office by telephone, fax or email, to inform us of the error and to enable arrangements to be made for the destruction of the transmission, or its return at our cost. No liability is accepted for any unauthorised use of the information contained in this transmission. If the transmission contains advice, the advice is based on instructions in relation to, and is provided to the addressee in connection with, the matter mentioned above. Responsibility is not accepted for reliance upon it by any other person or for any other purpose. --- To unsubscribe from spectrum, send email to [email protected] with the body: unsubscribe spectrum [email protected]
