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Oracle Data Guard pros and cons

Vendor: Oracle
4.2 out of 5

Pros & Cons summary

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Prominent pros & cons

PROS

Oracle Data Guard provides high availability and data protection by allowing a standby database to take over seamlessly if the primary database becomes inaccessible.
Backing up directly from the standby database minimizes performance impact on the primary system.
Scalability and the ability to seamlessly replicate across data centers make Oracle Data Guard a valuable option for data protection and high availability.
Real-time replication and snapshot features enhance testing capabilities without affecting the primary database.
Oracle Data Guard ensures zero data loss and provides robust failover capabilities, offering reliability and peace of mind for critical operations.

CONS

Oracle Data Guard requires constant system monitoring, particularly of the archives, to ensure stability.
The licensing fees for each standby server can become a financial burden.
Network disconnections can result in a microsecond of data loss when replicating data to the standby database.
The complexity of implementation and command-line driven processes make Oracle Data Guard challenging without prior experience.
The pricing and licensing costs are high, making Oracle Data Guard expensive to deploy and maintain.
 

Oracle Data Guard Pros review quotes

Azhagupandi Parthiban - PeerSpot reviewer
Vice President Of Technology at a tech services company with 1,001-5,000 employees
Jan 4, 2024
We have not encountered any major challenges with replication. We were able to achieve near-real-time replication. Also, with the switchover failover, we were not getting any technical issues. It's a pretty stable product.
Federico Bonifazi - PeerSpot reviewer
CEO & Technical DBA Oracle at Geko s.r.l.
Jan 31, 2024
The most valuable aspect for me is undoubtedly the failover capability and the assurance of data safety provided by Oracle Data Guard.
IfeoluwaOshinowo - PeerSpot reviewer
Senior Oracle Database Administrator at Computer Information Systems (CIS)
Feb 6, 2024
Data Guard also improved because customers with an active Data Guard license want to reduce the I/O in a production environment. Some application complaints to it for Oracle reporting purposes. It has a production environment that needs to be enhanced.
Learn what your peers think about Oracle Data Guard. Get advice and tips from experienced pros sharing their opinions. Updated: April 2026.
893,221 professionals have used our research since 2012.
AdnanKamarudin - PeerSpot reviewer
Database Engineer at Dagang NeXchange Berhad
Nov 17, 2023
The most valuable feature is the application or promotional code used in the production protocol to transfer data to the secondary database, situated on the DR site.
MK
Database and Middleware Technical Head at Riyadh Municipality
Nov 2, 2023
It is a top-notch product, super stable, making it our go-to for internal operations.
SM
Database administrator at SSnC
Aug 8, 2023
Snapshot and Data Guard Manager are awesome features.
reviewer1909131 - PeerSpot reviewer
Senior Database Administrator at Argo Group
Jul 8, 2022
You can see how the logs are applied, check the apply time, and how far behind the standby is at any given time.
SrikanthSubramanian - PeerSpot reviewer
Senior Consutant at HCLSoftware
May 6, 2022
The most important feature is that if I want to test the database at the disaster recovery site, I can take a snapshot, test it, and then revert it back to the original state without needing to restore the complete database from the primary data center to the disaster recovery.
reviewer1069209 - PeerSpot reviewer
DBA Team Lead at a manufacturing company with 1,001-5,000 employees
Jan 25, 2023
The most valuable feature is the flashback standby, which allows us to test without scrapping the database.
Oz Pozner - PeerSpot reviewer
Head of Product - CloudHome at Bynet
Feb 16, 2022
Backup and application continuity are most valuable.
 

Oracle Data Guard Cons review quotes

Azhagupandi Parthiban - PeerSpot reviewer
Vice President Of Technology at a tech services company with 1,001-5,000 employees
Jan 4, 2024
The only difficult part is the cost factor, licensing. Another area of improvement is support.
Federico Bonifazi - PeerSpot reviewer
CEO & Technical DBA Oracle at Geko s.r.l.
Jan 31, 2024
For Italian medium-sized companies, the main challenge lies in the cost associated with licenses.
IfeoluwaOshinowo - PeerSpot reviewer
Senior Oracle Database Administrator at Computer Information Systems (CIS)
Feb 6, 2024
There is an issue with their application on ODG. There were a lot of edits in the logs. Sometimes, we only get a little cue from the Data Guard Broker logs if there's an issue.
Learn what your peers think about Oracle Data Guard. Get advice and tips from experienced pros sharing their opinions. Updated: April 2026.
893,221 professionals have used our research since 2012.
AdnanKamarudin - PeerSpot reviewer
Database Engineer at Dagang NeXchange Berhad
Nov 17, 2023
The predominant issue lies in the communication link between the secondary and primary databases.
MK
Database and Middleware Technical Head at Riyadh Municipality
Nov 2, 2023
A significant improvement for Oracle Data Guard would be enabling the disaster recovery site to handle read and write operations, not just data storage.
SM
Database administrator at SSnC
Aug 8, 2023
The product could improve its pricing.
reviewer1909131 - PeerSpot reviewer
Senior Database Administrator at Argo Group
Jul 8, 2022
We would like to be able to see the date time stamp when you execute DGMGRL commands.
SrikanthSubramanian - PeerSpot reviewer
Senior Consutant at HCLSoftware
May 6, 2022
They may need to include the monitoring and the alerting part in Data Guard.
reviewer1069209 - PeerSpot reviewer
DBA Team Lead at a manufacturing company with 1,001-5,000 employees
Jan 25, 2023
The initial setup is complex.
Oz Pozner - PeerSpot reviewer
Head of Product - CloudHome at Bynet
Feb 16, 2022
The usage of block storage devices in the cloud or migration of a type of storage from one site to another site can be improved. Currently, we have to use multi-node to single node because of the lack of storage support on the Azure side. It did not really work. Our DBA had to spend a lot of time tweaking the Data Guard tools, or the underlying Oracle VMs, to make sure that Data Guard would run on top of different types of storage. So, if it can support transporting or getting from one type of storage to another type of storage in a different site or a different technology, it would be very helpful.