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IBM FlashSystem vs IBM XIV comparison

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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
6.9
Number of Reviews
113
Ranking in other categories
NAS (8th), All-Flash Storage (10th)
IBM XIV
Ranking in Modular SAN (Storage Area Network)
11th
Average Rating
7.6
Reviews Sentiment
5.4
Number of Reviews
6
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of November 2026, in the Modular SAN (Storage Area Network) category, the mindshare of IBM FlashSystem is 11.3%, down from 14.0% compared to the previous year. The mindshare of IBM XIV is 3.5%, up from 1.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Modular SAN (Storage Area Network) Mindshare Distribution
ProductMindshare (%)
IBM FlashSystem11.3%
IBM XIV3.5%
Other85.2%
Modular SAN (Storage Area Network)
 

Featured Reviews

OmarIsmail1 - PeerSpot reviewer
Infrastructure Technical Specialist II at Clicks Group
Offers high performance and dependable support for fast storage needs
The most valuable feature of IBM FlashSystem is its robust back code. When integrated properly into the environment and configured according to the guidelines, it provides a very solid infrastructure that does the job on demand. Additionally, IBM FlashSystem offers competitive pricing and reliable performance. The hardware is dependable, ensuring that it functions effectively when the setup is done correctly.
Ajith Kandaramage - PeerSpot reviewer
IT Operation Engineer at HNB
Good value for money but issues with modular scaling
IBM XIV's most valuable features are NVME, especially when it comes to de-duplication, compression, and responsiveness I've been using IBM XIV for two and a half years. IBM XIV is stable. IBM XIV's scalability is adequate for our requirements, but because it's modular, you can't scale to larger…

Quotes from Members

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

Pros

"IBM XIV is the most valuable part of this solution; it is easy to use and manage, cheap, and has reliable technology."
"We previously used Dell EMC and switched to this solution because the support, product and performance are of a higher standard."
"IBM FlashSystem is a stable solution."
"The FlashSystem 900 consistently delivers performance below 1ms for read/write. This performance is essential for an effective SVC stretch-cluster configuration across two datacenters, and presenting active-active storage to the customer."
"The stability is quite good, there are no bugs or glitches, it doesn't crash or freeze, and it's a very reliable product."
"This solution is convenient, user-friendly, convenient and reliable."
"The solution is very flexible."
"It's a mature product. It's like a BMW that evolves consistently."
"The XIVs here are only being used for non-production and dev systems, but still the performance and robustness of the systems are very good."
"The product is exceptionally reliable and very easy to manage."
"IBM XIV's most valuable features are NVME, especially when it comes to de-duplication, compression, and responsiveness."
"XIV setup is very straightforward and easy to configure."
"For us, the XIV is pretty much set-it-and-forget-it storage."
"Implementing Remote mirroring and local Snaps is very easy."
"Very easy to produce reporting data (Snaps). Very easy and fast for provisioning devices and Remote mirroring."
"As it spreads, a chuck of 1MB across the board means using all available spindles on the backend."
 

Cons

"Events/log analysis tools."
"The technical support in my region is satisfactory but it could improve."
"I have used support and it needs improvement."
"IBM FlashSystem 5300 needs improvement in its deduplication and compression features."
"ISCSI/ISER Bandwidth is at 25gbps. Would be nice if that can keep track with the bandwidth currently available in new dc networking deployments."
"The deduplication technology in IBM FlashSystem needs significant improvement."
"I would like to see an improvement in the handling of large amounts of rights."
"The marketing could be improved."
"I guess we'd like to see the XIV keep pace with how storage is going in terms of speed and latency."
"I would rather have a web GUI served directly from the unit, and a CLI accessible directly through SSH."
"IBM XIV's scalability is adequate for our requirements, but because it's modular, you can't scale to larger requirements."
"Until the drive is replaced, the pool_resizing is locked."
"The change form synchronous mirroring to asynchronous (and vice versa) without reconfiguration from scratch would be helpful."
"Until the drive is replaced, the pool_resizing is locked. This has been an issue a lot of times, especially when the contract says IBM will not replace disks until three drives fail."
"This product was not a good fit for our organization as we have a ton of latency sensitive applications and XIV was not able to keep up with IO + latency demand."
"Management accessibility. Both the GUI and the CLI require installation of a Java-based thick client, which is ridiculous, plus a drain on resources."
 

Pricing and Cost Advice

"I find the pricing of the solution to be very reasonable."
"You purchase it as a bundle and the price is comparable."
"The solution requires a license and could be less expensive."
"The cost is pretty high in terms of licensing. We pay at least $100,000 USD in licensing fees for the storage."
"For a yearly license, it is about $100,000. There are no additional costs. The entire system is included."
"They've been much more aggressive in the last five, six years than they were before that."
"If five is a good price and one is a high price, I would rate the price a two or three out of five."
"Its price is very good."
"Licensing is straightforward."
"No-license-required policy, unlike others where you need a license for everything. Just pay once and forget about licenses."
"If you are going to use the product behind an SVC, IBM will price the units lower, since you are likely not to use any of the advanced copy services."
"We have a five-year total cost of ownership where we pay an initial amount and then annually for maintenance."
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Top Industries

By visitors reading reviews
Financial Services Firm
13%
Outsourcing Company
10%
Manufacturing Company
10%
Comms Service Provider
9%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business48
Midsize Enterprise20
Large Enterprise60
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for IBM FlashSystem?
The pricing is high; storage solutions are always expensive. I do not know if the price needs to be reviewed, but it is worth considering.
What needs improvement with IBM FlashSystem?
As far as I know, IBM FlashSystem has already improved, but I do not see room for improvement. It is simple to use and manage via SVC, simple to configure, and even for the zoning, I do not see imp...
What is your primary use case for IBM FlashSystem?
We are not working with Object Storage or Storage Protect; we are working with SAN storage and LUN storage. I am a consultant assigned to a customer in France. We are working with SVC in regard to ...
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Also Known As

IBM Storwize
XIV
 

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
Celero, NaviSite, Technische Universit_t Mªnchen, Netflix Inc., Muhr und Bender KG, Pelephone Communications
Find out what your peers are saying about IBM FlashSystem vs. IBM XIV and other solutions. Updated: November 2026.
920,043 professionals have used our research since 2012.