Today my colleague had issue that SQL server instance is not starting on. It is a SQL 2016 and had seven instances with 24 GB of total OS RAM. Same again, one of the SQL instance memory configured incorrectly. It is a alwaysON secondary replica. We know where we have to look, when we cannot start SQL service. Run — Eventvwr — Windows logs –Application and system. One more: Open SQL server errorlog file in notepad and review as well. You can get the error log location in the configuration manger — startup parameters. 2019-01-30 04:43:14.73 spid6s Error: 701, Severity: 17, State: 123. 2019-01-30 04:43:14.73 spid6s There…