SQL Server Error: 9001, Severity: 21, State: 5 – The log for database `database_name` is not available. Check the event log for related error messages. Resolve any errors and restart the database. | Error: 9001, Severity: 21, State: 5. | Matched: %Error%,

Upon being greeted with the following logs, I started investigating the issue.

I found the issue to be caused by the database being closed, and not any major underlying disk issue.

Check if your database has auto_close enabled.

select @@SERVERNAME AS server_name,getutcdate() as report_date_utc,name as database_name, is_auto_close_on , state_desc, user_access_desc
from sys.databases
where is_auto_close_on = 1
order by name asc

If autoclose is on, switch this database to no longer use auto_close.

Before making any changes, check the integrity of the database. If there are no errors generated by this command, then  move on to changing the auto_close option.

dbcc checkdb('database_name')

alter database [database_name] set offline with rollback immediate;
alter database [database_name] set online;

alter database [database_name] set AUTO_CLOSE OFF;


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