Configuration parameters for AFM-based DR

The following table lists the AFM-based DR configuration parameters with their default values and the commands to set and edit the parameters:

Table 1. Configuration parameters at primary and their default values
AFM configuration parameter Unit Description Mode on AFM-DR
afmAsyncDelay Seconds Indicates the time at which the requests start flushing to the home cluster. For write-intensive applications that write to the same set of files, this delay is helpful because it replaces multiple writes to the home cluster with a single write containing the latest data. However, setting a very high value weakens the consistency of the data on the remote cluster. primary
afmDisconnectTimeout Seconds Defines the interval until which the MDS waits after it detects that the home cluster is inaccessible before declaring the outage by moving the cache cluster state to Disconnected. primary
mountRetryInterval Seconds Specifies the interval after which the MDS retries an operation at home, in cases where the home is in an unhealthy state. Needs the GW node recycle or -i option for immediate effect. It is tunable per gateway. The updated value is visible only as long as the gateway is active and is applicable for all filesets owned by that gateway. primary
afmRPO Minutes Specifies the interval for generating RPO snapshots. primary
Table 2. Configuration parameters at primary and their default values - Valid values
AFM configuration parameter Valid values Default value Tunable at the cluster level Tunable at the fileset level
afmAsyncDelay 1 - 2147483647 15 Yes Yes
afmDisconnectTimeout 0 - 2147483647, disable 60 Yes No
mountRetryInterval   300 No No
afmRPO Start of change720End of change - 2147483647 disabled No Yes