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Variable rate synchronization
Fixed-rate synchronization is not an optimal method when In configurations where multiple resources share a replication/synchronization networksync network, fixed-bandwidth synchronization is not optimal. Because they share the same replication network, if a synchronization the sync rate is occupied for a specific particular replication resource channel, other resources are not guaranteed a fixed synchronization sync rate. In this case, you can mitigate that the synchronization rate is occupied sync-rate occupancy by configuring variable-bandwidth synchronization to dynamically adjust the synchronization sync-rate of for each replication channel through variable rate synchronization. bsr determines the initial sync speed in this mode . In this mode, BSR determines an initial sync-rate (by resync-rate) and then continuously adjusts the sync speed -rate through an automatic control-loop algorithm. This algorithm ensures sufficient bandwidth for foreground replication and greatly mitigates the impact of background synchronization on foreground I/Othat the synchronization band is available from c-min-rate to c-max-rate while replication is operating on the front end. Setting c-max-rate too high will affect the replication band, so it is recommended to match the network band.
The optimal configuration for variable rate bandwidth synchronization may vary depending depends on the available network bandwidth, application I/O patternpatterns, and replication link congestion, and the optimal configuration setting settings may vary depending on whether replication acceleratoryou are using Replication Accelerator (DRX) is used.
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c-min-rate guarantees a minimum synchronization rate of a specified size, regardless of whether you have a fixed-bandwidth or variable-bandwidth setting. |
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The following is an example of creating a scheduled task using schtasks (windows schedule setting command). With the following settings, online verification is performed every Sunday at 00:42 AM.
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