3.2.2 Failure occurs on PFM - RM for Microsoft SQL Server host

Figure 3-5 shows the processing when failover occurs on a PFM - RM for Microsoft SQL Server host.

Figure 3‒5: Processing when a monitoring Microsoft SQL Server host performs failover

When you attempt to operate PFM - Web Console during failover of PFM - RM for Microsoft SQL Server, PFM - Web Console displays the message There was no answer(-6). In such a case, wait for the failover to be completed before performing the PFM - Web Console operation.

Once PFM - RM for Microsoft SQL Server failover has been completed, you will be connected to the PFM - RM for Microsoft SQL Server that was started on the failover target node and you will again be able to operate PFM - Web Console.

Note:

A failover on the monitoring PFM - RM for Microsoft SQL Server host may cause temporary errors in the historical collection of the performance data.

Moreover, before and after the failover, the value of collected data may be negative. Note that for data after the failover is completed, positive values are used as the data differentials.

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