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DRBD vs FlashGrid Cluster for Oracle RAC comparison

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Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

DRBD
Ranking in High Availability Clustering
3rd
Average Rating
8.0
Number of Reviews
1
Ranking in other categories
No ranking in other categories
FlashGrid Cluster for Oracl...
Ranking in High Availability Clustering
7th
Average Rating
8.4
Number of Reviews
3
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of November 2026, in the High Availability Clustering category, the mindshare of DRBD is 13.6%, up from 13.1% compared to the previous year. The mindshare of FlashGrid Cluster for Oracle RAC is 3.0%. It is calculated based on PeerSpot user engagement data.
High Availability Clustering Mindshare Distribution
ProductMindshare (%)
DRBD13.6%
FlashGrid Cluster for Oracle RAC3.0%
Other83.4%
High Availability Clustering
 

Featured Reviews

it_user302112 - PeerSpot reviewer
Senior Consultant IT Infrastructure at a tech consulting company with 51-200 employees
It's kept data synchronized between multiple nodes in different datacenters, though it should have its own filesystem which can be used in multi-master environments.
Working with DRBD can be complex and it takes time to understand how it works. Especially split-brain scenarios need to be handled carefully. When it comes to multi-master setups, which are possible with the latest DRBD version, you need to use a cluster filesystem. I think that DRBD should write their own filesystem which can be used in multi-master environments since most cluster filesystems are complex or simply have many flaws.
SD
Technology Leader at eTCaaS
Migration to cloud has cut database costs and simplified shared storage but still needs lower latency
The best features FlashGrid Cluster for Oracle RAC offers include shared storage, which is critical because for on-premise Oracle high availability clusters, I do not need FlashGrid. When I migrate to the public cloud, I need FlashGrid to provide that shared storage. It is easy to migrate from on-premise to cloud because the Oracle architecture does not change; the only difference is that in the public cloud, shared storage block was not available, but FlashGrid provides that feature to the Oracle RAC cluster. FlashGrid Cluster for Oracle RAC has positively impacted my organization cost-wise because by migrating to the cloud from my on-premise data center, I could consolidate the price structure for my storage and compute needs. Oracle RAC was the bottleneck for that because previously, without FlashGrid, I could not configure Oracle RAC in the public cloud, but with FlashGrid, I managed to consolidate costs for Oracle RAC infrastructure in the cloud. After migrating with FlashGrid, I have a substantial presence of Oracle RAC clusters in my data centers, around 50 RAC clusters across the U.S., and each was costing around $100,000 per year per cluster. However, I was able to migrate 25 of those clusters to the public cloud using FlashGrid, and the cost was reduced to $50,000 for those clusters, meaning I saved $50,000 per annum for the 25 instances. After installing and configuring FlashGrid in AWS cloud, I was able to reduce the storage cost substantially compared to my on-premise data center storage. I saved $50,000 per Oracle RAC cluster per annum using FlashGrid, which includes both storage cost, compute cost, and also manpower cost.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"DRBD helped me and many customers to provide data in an HA environment with low costs (since DRBD itself is free)."
"FlashGrid Cluster for Oracle RAC was very helpful in solving the shared disk problem."
"I saved $50,000 per Oracle RAC cluster per annum using FlashGrid, which includes both storage cost, compute cost, and also manpower cost."
"The stability and performance of the cluster during testing were impressive."
 

Cons

"Working with DRBD can be complex and it takes time to understand how it works."
"I believe FlashGrid Cluster for Oracle RAC can be improved by providing better guidance on how to utilize it smoothly, especially regarding the learning curve."
"There is room for improvement in the area of migration or integration with existing on-premises infrastructure."
"One weakness is that there might be performance degradation once I install Oracle RAC in the public cloud using FlashGrid; that is one weakness I have encountered after migrating to the public cloud with FlashGrid."
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Top Industries

By visitors reading reviews
No data available
Construction Company
21%
Financial Services Firm
16%
Comms Service Provider
11%
Insurance Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
No data available
 

Questions from the Community

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What is your experience regarding pricing and costs for FlashGrid Cluster for Oracle RAC?
I am not part of the pricing, setup cost, and licensing decisions for FlashGrid Cluster for Oracle RAC. I have only been delegated to use it, so I cannot provide comments on that.
What needs improvement with FlashGrid Cluster for Oracle RAC?
I believe FlashGrid Cluster for Oracle RAC can be improved by providing better guidance on how to utilize it smoothly, especially regarding the learning curve. Adding resources for understanding ho...
What is your primary use case for FlashGrid Cluster for Oracle RAC?
My main use case for FlashGrid Cluster for Oracle RAC is cloud migrations and active-active high availability across multiple availability zones. I use FlashGrid Cluster for Oracle RAC for spreadin...
 

Also Known As

No data available
FlashGrid for Oracle RAC and Database HA (on OL 9), FlashGrid for Oracle RAC and Database HA (on RHEL 9)
 

Overview

 

Sample Customers

Cisco, Portland State University, Porsche Informatik, Siemens, Ericsson,T-Mobile, Addidas
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