We are planning to decommission our EV environment which is EV 11 CHF4 with Single site and 4 servers. Kindly suggest me if there are any good documents explains about EV decommission.
Will there any dependencies if we delete the storage data after decommissioning EV and SQL.
Any suggession on this is much appriciated
Before doing so, make sure you have written statement from management/legal you can indeed remove the environment. Keep in mind that if you remove the archived data and the SQL databases, you can only return if you have proven backups. Indexes can be recreated, but having these backed up also is advisable.
The Installing guide has a section about uninstalling. You can also see article