I have on-prem SQLserver having ~900GB space DB's Size
My RDS DB instance size in AWS was 6500GB DB is postgres for cloud AWS.
I am getting alerts messages Finished applying autoscaling-initiated modification to allocated storage.
So increased instance to 7200GB
But again getting error message like **Storage size 7199 GB is approaching the maximum storage threshold 7200 GB. Increase the maximum storage threshold**
how to troubleshoot my issue.
Where my remaining space was leftover
Thanks
I have created a serverless aurora database and created a database and filled it. Without using it for reading and writing, i get priced for it.
Does the aurora serverless database costs money monthly even though i do not use it?
You only pay for storage if you are not using it. From docs:
When the DB cluster is paused, no compute or memory activity occurs, and you are charged only for storage.
To me I care more about the schema, functions and triggers, and less on the data itself. From AWS document(https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_CreateSnapshot.html), it doesn't address my question clearly.
Amazon RDS creates a storage volume snapshot of your DB instance,
backing up the entire DB instance and not just individual databases.
... Since the snapshot includes the entire storage volume, the size of
files, such as temporary files, also affects the amount of time it
takes to create the snapshot.
As far as I am aware, the schema, data, functions and triggers are all included. It includes all databases in the instance.
If you specifically don't want data to be backed up then you would need to create a manual backup process.
Being block level backups, AWS RDS snapshots include schema and data.
If you want a schema-only backup then use pg_dump with the --schema-only directive for PostgreSQL or mysqldump with --no-data for MySQL.
On AWS RDS, a Database Server (MySQL or SQL Server) is made of 2 things.
Compute Power (RAM, CPU, etc.)
Storage (EBS Volume)
Storage is the main Hard Disk that stores all the data files.
So, when you take a snapshot or backup on AWS RDS or Aurora, it creates a copy of the attached EBS volume (storage) and stores it somewhere in its data centers.
For example, you created 3, 4, or N SQL Server databases on an RDS SQL Server and you took the database snapshot or backup, then a copy of the complete EBS volume where database datafile (MFD, LDF, etc) are residing will be created. And when you restore it on a new instance, all databases will be restored, not an individual one.
Now answering your question, for SCHEMA backup, you can generate scripts from respective Database Management Tools.
SQL Server - SQL Server Management Studio
MySQL - SQLYug, WorkBench, etc.
Im Currently using AWS RDS on my system, and my storage is too big.
And then i house keeping them and delete about 200 TB.
But in my billing the storage didnt decrease at all.
How can i decrease my storage on AWS RDS ?
You can't decrease storage as you provision upfront. The only way to decrease storage is dump your database to disk on another (EC2?) server and create a new RDS instance with less diskspace.
I am newbie to AWS and just deployed a demo app as a free tier user. Below is my RDS instance high level information.
I see that the db automatic backups are happening as shown below.
I would like to know what is the size of my DB backup storage as a free tier user. I guess the 5 GB shown above is for database storage.
From the Free tier documentation, I have understood that 20 GB database storage and 20 GB of backup storage is available for single A-Z Micro Instances.
Where can I find my backup storage size?
I am using Postgresql database.
There is no direct way to determine the snapshot size of an RDS instance
Usually you don't need to worry if the backup retention period is 1 day, as it is free
According to AWS Documentation
Backup storage is the storage associated with your automated database backups and any user-initiated DB Snapshots you have taken. Increasing your backup retention period or taking DB Snapshots may increase the backup storage consumed by your database. There is no additional charge for backup storage up to 100% of your consumed database storage for an active DB Instance. For example, if you have an active DB Instance with 10GB-month of consumed database storage, we will provide up to 10GB-month of backup storage at no additional charge.
Which means that, if you have allocated 5GB of storage while creating the RDS instance, and lets say you are consuming 1GB of the allocated space, you can approximately take 5 backups.
References
https://aws.amazon.com/rds/pricing/#Backup_Storage
https://aws.amazon.com/rds/faqs/#automated-backups-database-snapshots
AWS does not currently have a way to determine actual snapshot sizes.
The "5 GB" of storage is your allocated storage for your database, not necessarily the amount of storage actually used by your database.