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Client Failover Functionality
Is Notes Client failover functionality available for someone using the Notes client to access their mail file in the SmartCloud Notes service?
Yes. In the Notes client, when a user's home mail server becomes unavailable, a user fails over to a replica of their mail file on another server in the SmartCloud Notes service.
For a more in depth look at failover behavior in the Notes client see How the Cluster name cache works in Notes/Domino
Is failover functionality available for someone using SmartCloud Notes web to access their mail file in the SmartCloud Notes service?
Yes. Failover to a replica of the user's mailfile is handled within the service for the user. The user continues working, seamlessly.
Why do I get asked if I want Notes to fail over when my primary server goes down? Should I answer yes to Failover?
Prior to Notes Client versions 8.5.3 Fix-pack 2, the default behavior of the client was to confirm with the user if the client should perform a failover. In the 8.5.3 FP2 release, the default behavior changed so that failover occurs without prompting (silent failover). If you are using a version prior to 8.5.3 FP2, you are strongly urged to upgrade to at least 8.5.3 FP2, which also contains additional changes for failover.
Are there any known issues for failover?
The technote, Information on collection of failover fixes for Notes 8.5.1 (and higher) provides a brief description and fix status for a collection of client failover issues seen in the IBM Notes client. You will notice there are many fixes to failover starting with 8.5.3. FP2.
How should I troubleshoot failover issues in the Notes Client?
In the Notes client, a complex operation may involve many exchanges between client and server. Most operations are automatically redone after failover, but in some cases it may be necessary to close all open mail database windows and re-open them after a failover. It is a simple rule - - when you see an issue that persists, close your mail and calendar windows and open them again.
The following technotes provide additional guidance for troubleshooting failover issues in the Notes Client:
How do failover in SmartCloud Notes web and failover in the Notes client (accessing a mail file in SmartCloud Notes) differ?
HTTP failover is almost transparent because each communication between client and server is independent, i.e. no context. The Notes client protocol, however, has context. A complex operation may involve many exchanges between client and server that involve context, such as an open database, an open view, etc. Most operations are automatically redone after failover, but in some cases it may be necessary to close all open mail database windows and re-open them after a failover. All of this applies only when the end user is accessing server based mail databases directly. If the Notes client is using managed mail or a local replica failover is almost always transparent.
Managed Mail Replicas
Is managed mail replica (MMR) supported for SmartCloud Notes users?
The feature, Managed Mail Replica, is supported for SmartCloud Notes users using the IBM Notes Client, in a hybrid environment. Managed mail replica is NOT available for SmartCloud Notes users in a service-only environment. However, a local replica is available for users in a service only environment.
Why would I want to use Managed Mail Replicas for SmartCloud Notes users?
If a SmartCloud Notes user is connected to the SmartCloud Notes service for mail, and they are on a network that has high latency, I/O operations can block the user's interface and the user will experience delays. When MMR is enabled for a user, I/O operations over the network between the Notes client and the service are moved to the background client replicator. Since I/O occurs in the background, all failover issues are masked. The user perceives a faster, continuous client experience.
To learn more about the reasons for using Managed mail replica, what it is, and how it works, see the document, Managed Replica Explained
At a high level, what is the process to configure Managed Mail Replica for SmartCloud Notes users in a hybrid environment?
1 - Administrator creates an explicit policy that contains a desktop settings policy document with managed mail replica settings configured.
2 - Administrator assigns the explicit policy to SmartCloud Notes users or group(s) (should only assign to those who use the IBM Notes Client to access their mail in the service). The Policy Assignment tab method is used to assign explicit policies to SmartCloud Notes users. See Planning and assigning policies.
3 - Result: The explicit policy causes a local mail replica to be created automatically for the users to whom the explicit policy was assigned, without the users having to set it up.
How can I determine if a SmartCloud Notes user is using MMR, without investigating the explicit policy assignment?
The following technote provides guidance: Q&A: Understanding Managed Mail Replicas