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IBM FlashSystem vs Oracle Sun ZFS Storage Appliance comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Feb 2, 2025

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

IBM FlashSystem
Ranking in Modular SAN (Storage Area Network)
4th
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
110
Ranking in other categories
NAS (4th), All-Flash Storage (13th)
Oracle Sun ZFS Storage Appl...
Ranking in Modular SAN (Storage Area Network)
9th
Average Rating
7.6
Reviews Sentiment
7.6
Number of Reviews
2
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of April 2025, in the Modular SAN (Storage Area Network) category, the mindshare of IBM FlashSystem is 19.8%, up from 16.1% compared to the previous year. The mindshare of Oracle Sun ZFS Storage Appliance is 4.1%, down from 4.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Modular SAN (Storage Area Network)
 

Featured Reviews

Raanan Sitton - PeerSpot reviewer
Offers cost-effective storage for small companies with budget constraints
IBM FlashSystem 5300 is offered at a very low cost in Israel, which is advantageous for small companies. However, other features like deduplication and compression do not perform effectively. The price sensitivity makes it a viable option for clients with budgetary constraints, as it allows us to secure deals based on the cost rather than advanced performance.
RM
A stable unified storage system that enables quick access to data
The main thing Oracle can improve is the cost. It would be better if Oracle opened up the system to enable integration with other vendors. Whether it's the database, application server, or storage appliance, they should make it easy to integrate them. They need to open up more to ensure that it can work in any environment and IT ecosystem.

Quotes from Members

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

Pros

"Speed (IOPS/second) – It is most vital for applications that need low latency and high speed for transferring the data."
"Over the years, it has become increasingly user-friendly."
"The all-flash storage has tier replication capabilities."
"It's a mature product. It's like a BMW that evolves consistently."
"IBM FlashSystem is a powerful effective storage solution. Additionally, it is user-friendly, anyone can use it."
"The solution allows for easy migrations from previous products or vendors via its embedded storage virtualization function."
"The ability to create LUNs and modify them are the most valuable features of this solution."
"The most valuable feature in demand is virtualization and its support storage of virtualization features."
"I like its storage capacity, quick access to the data, speed, and overall storage management."
 

Cons

"GUI interface should be enhanced more as there is some issues in copy services."
"They can improve its initial configuration. The initial configuration is currently very difficult. There are multiple choices or alternative ways to configure based on the use case and what you are targeting out of the device, that is, more capacity or more performance. These multiple alternatives cause a lot of confusion. They should increase the processing part of the nodes. Currently, you can cluster up to eight nodes. From my experience and the workload that I am facing in my environment currently, I would like to see either a bigger or stronger node or a larger number of nodes that can be clustered together. We formally communicated to them that we need to see either this or that, and they are working on something."
"Customization features must be improved."
"Include an option to upload the support package to the IBM ECuRep when opening an IBM PMR."
"Cloud file sharing is an area that needs improvement."
"If you want to expand, you cannot expand the disc enclosure. You have to buy a total individual node. Sometimes, this is difficult because we are just looking for capacity and not a node."
"There is room for improvement in the troubleshooting part, specifically related to IBM Spectrum for Insight."
"The interface of this solution could be improved."
"The main thing Oracle can improve is the cost. It would be better if Oracle opened up the system to enable integration with other vendors. Whether it's the database, application server, or storage appliance, they should make it easy to integrate them. They need to open up more to ensure that it can work in any environment and IT ecosystem."
 

Pricing and Cost Advice

"The price of IBM FlashSystem is reasonable."
"The pricing may be a bit higher than other brands. If you compare the IBM FlashSystems in midrange with Dell EMC in midrange, IBM costs a bit more, but I prefer IBM because it has more specs that I can benefit from."
"The pricing is reasonable."
"The solution has good pricing, but it is not cheaper."
"The pricing is competitive in our country."
"The integration is already included in the license cost of IBM FlashSystem. The integration is very easy. You get the IBM storage core with all software, firmware, and upgrades. EMC provides the features in the box, but they are not free for customers. There is a licensing cost for features. We have yearly licensing, but IBM has also provided a new option where you pay as you go. They provide a big box, and I pay, for example, for 10 terabytes. If I exceed 10 terabytes, IBM will charge for the new storage after 10 terabytes. It is a good opportunity in the market for using the storage as a cloud and paying as you go."
"The tool is cost-efficient."
"Regarding licensing make sure you add at least three years software maintenance from IBM at the beginning, because you will not be able to download firmware updates or any fixes/patches without this."
"The price could be better. We have many competing products now like Huawei and Dell EMC, and these are slightly cheaper."
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Financial Services Firm
11%
Manufacturing Company
10%
Government
7%
Financial Services Firm
13%
Manufacturing Company
10%
Computer Software Company
10%
Real Estate/Law Firm
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for IBM FlashSystem?
Many factors affect purchasing directly from IBM, often involving a multi-step process. Customers, especially in banking, often use the latest devices as they are upgrading, indicating they do not ...
What needs improvement with IBM FlashSystem?
The GUI needs some improvement. An additional function that could be helpful is reducing the time it takes to delete volumes, especially if they are compressed or deduplicated.
Ask a question
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Also Known As

IBM Storwize
Sun ZFS Storage Appliance
 

Overview

 

Sample Customers

Celero, Friedhelm Loh Group, Clarks, Mingkang Natregro Health Food Group, Sofia, Etisalat Fights Fraud, UF Health Shands Hospital, Generali, Elecon Engineering Company Limited, Ventiv , Technology, CPFL Energia, Royal Caribbean Cruises Ltd., SciQuest, Coca-Cola Bottling Co. Consolidated, Paddy Power, Kelsey-Seybold Clinic, Interconnect Services, Severstal IP-Only AB, PVU Group GmbH
Translational Genomics Research Institute, Nara Institute of Science and Technology, CyberSolutions Inc., Y-Telecom, First Alliance Bank Zambia Limited, AZ Sint-Jan Brugge-Oostende, Mutlinet Pakistan, TDC A/S, Digi-Key Corporation, Thurgau Cantonal Bank
Find out what your peers are saying about IBM FlashSystem vs. Oracle Sun ZFS Storage Appliance and other solutions. Updated: April 2025.
848,253 professionals have used our research since 2012.