Today, I went to the three factories to help install SQL Server based on the Co-Standby architecture. In general, it is a smooth, the first Mirror speeds slow, so on Mirror, test, online cards in Primary nodes Disconnect, after 10 seconds, the system switches to another server, the heart is stealing, there should be no problem .... Then recover the NIC outside the Primary node, the STANDBY node's network card disable, after 10 seconds, no Reaction, relying on, simply look at the server restart, 咦, 乖, is really effective :), then test a few times, it feels unstable, sometimes it can, sometimes it is time to switch from Primary to Standby, However, from Standby to Primary, it is often unsuccessful. I don't know if Co-Standby is still set, but the setting is basically in accordance with the instruction document, it should not be wrong, it seems that only A Q is CO- Standby's problem :) I will get off work in an afternoon to 5:50, the rice in the cafeteria is not eaten, it seems that I can only eat ramen ... 5 yuan is gone
