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AWS Database Migration Service pros and cons

4.0 out of 5
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Prominent pros & cons

PROS

AWS Database Migration Service allows users to focus on logic without worrying about administration and maintenance as it is handled by AWS.
The scalability and stable nature of AWS Database Migration Service are highly praised, enabling migration of large amounts of data effectively.
Real-time synchronization, including change data capture, provides seamless integration and data integrity between on-premise databases and AWS.
The architecture supports scalable migrations with beneficial networking capabilities like VPCs and VPNs.
The security risks are low, and the service has an easy and straightforward initial setup process.

CONS

Support is not expedient, causing delays for users waiting on extensions.
Bandwidth options could be more flexible, allowing independent or dedicated bandwidth for AWS Database Migration Service.
Migrating data from on-premises to AWS cloud poses challenges and could benefit from additional AWS services and better integration.
The initial setup can be difficult for beginners without adequate training.
Performance and scalability could be improved, especially for large-scale migrations and varying data types across platforms.
 

AWS Database Migration Service Pros review quotes

Didar Moldabekov - PeerSpot reviewer
Oct 4, 2022
If your infrastructure is already on Amazon, it simply makes the most sense to use a tool officially provided by them as an additional service, rather than having to rely on a third-party solution.
reviewer2130081 - PeerSpot reviewer
Jun 16, 2023
The database migration services allow us to do real-time synchronization of on-premise and database to plan out our releases.
ZC
Dec 9, 2022
Even if it does break down, it will automatically recover itself and resumes from where it stopped.
Learn what your peers think about AWS Database Migration Service. Get advice and tips from experienced pros sharing their opinions. Updated: March 2025.
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Prashant Sukhe - PeerSpot reviewer
Nov 13, 2023
The initial setup is very straightforward.
SP
Nov 2, 2020
The process is now simplified because there won't be maintenance. Usually we can take a snapshot of the number I need. We can automate the backup snapshots and we can restore it very quickly. We get many benefits from the application.
Consolador Daroy - PeerSpot reviewer
Jan 15, 2024
For our simple requirement of migration, DMS is just a typical AWS RDS with an IPSec tunnel to Oracle. The most valuable features for us are the networking capabilities like VPCs and VPNs.
StevenLai - PeerSpot reviewer
Sep 20, 2024
The most valuable feature is its ability to get all the changes in our data and store that in an S3 bucket.
VishalSharma2 - PeerSpot reviewer
Sep 12, 2022
It's scalable.
Shady Mogawer - PeerSpot reviewer
Jan 2, 2024
The product's initial setup phase was very easy.
reviewer2057175 - PeerSpot reviewer
Mar 11, 2025
One valuable feature of AWS Database Migration Service is change data capture (CDC).
 

AWS Database Migration Service Cons review quotes

Didar Moldabekov - PeerSpot reviewer
Oct 4, 2022
One area that AWS DMS can improve on is its conversion of data types. For example, in Oracle, you have a data type called RAW, but in PostgreSQL there is no such thing. Thus, AWS DMS doesn't know what type I want to use when migrating from Oracle to PostgreSQL, and when performing the migration, AWS DMS changed the RAW data type to the byte data type, which isn't what I wanted.
reviewer2130081 - PeerSpot reviewer
Jun 16, 2023
The product's performance could be a little bit better.
ZC
Dec 9, 2022
There is no connectivity to the source database or the target database.
Learn what your peers think about AWS Database Migration Service. Get advice and tips from experienced pros sharing their opinions. Updated: March 2025.
842,592 professionals have used our research since 2012.
Prashant Sukhe - PeerSpot reviewer
Nov 13, 2023
The live duplication has a delay of two minutes, which can be an issue.
SP
Nov 2, 2020
Migrating from here and pushing the data from on-premise to AWS cloud is a big challenge and a few more services from AWS would be helpful. For example, we are currently using ILDB internet tools which move data from on-premise to the AWS cloud. A few more services would be really helpful for me to move the master data.
Consolador Daroy - PeerSpot reviewer
Jan 15, 2024
The cost is a concern. We use DMS because of its simplicity, but the price could definitely be more competitive.
StevenLai - PeerSpot reviewer
Sep 20, 2024
Sometimes we encounter errors, and the error messages from DMS are very ambiguous and sometimes misleading.
VishalSharma2 - PeerSpot reviewer
Sep 12, 2022
If they had some sort of functionality where, at a specific point in time, if I want to start a new job, it should automatically pick up from where it has been left rather than having people worry about the exact job number and the timing.
Shady Mogawer - PeerSpot reviewer
Jan 2, 2024
The names of the services need improvement since AWS doesn't indicate what the function of the product is presently. You need to read a lot to find the service that you want in the product.
reviewer2057175 - PeerSpot reviewer
Mar 11, 2025
When working with AWS GovCloud, we often did not get an answer in time because AWS seemed more focused on the commercial side.