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IBM Spectrum Scale vs Red Hat Ceph Storage comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Jun 3, 2026

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

Everpure FlashArray
Sponsored
Average Rating
9.0
Reviews Sentiment
7.2
Number of Reviews
233
Ranking in other categories
All-Flash Storage (2nd)
IBM Spectrum Scale
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
14
Ranking in other categories
Software Defined Storage (SDS) (10th), Cloud Software Defined Storage (1st)
Red Hat Ceph Storage
Average Rating
8.2
Reviews Sentiment
6.7
Number of Reviews
27
Ranking in other categories
Software Defined Storage (SDS) (3rd), File and Object Storage (2nd)
 

Featured Reviews

Sowjanya MV - PeerSpot reviewer
Technical Lead at Wipro Limited
Has improved performance for mission-critical workloads and enabled seamless non-disruptive upgrades
The availability is 99.99%, which is the main factor any customer would need because their data should be available whenever they want to access it. This is one main critical thing. It is very easy to upgrade since Pure Storage FlashArray handles it well. Everything is non-disruptive now; previously, there were forklift shifts, but now that is not the case. Pure Storage FlashArray says no to forklift upgrades. Usually hardware requires downtime, but Pure Storage FlashArray has improved their footprint so that they are not asking for downtime; everything is just a non-disruptive activity, which is why customers are more inclined towards Pure Storage FlashArray. Customers want more of the models in their environment due to the performance they are giving, and everything is in one Pure1 Array console where we can view all the models on one page or just an orchestration tool. You don't miss anything; you have replication, notifications about replication, and details about which host groups replication is happening in and if that replication is successful or failed. On a daily basis, our purpose is to create volumes for infrastructure; our daily activities include creating volumes and mapping them to the host, doing any migrations from a VM, clearing the data stores, and carving the volumes to those VMs. One key factor is the data compression with a ratio of 5:1, focusing on space efficiency, inline deduplication, and the compression Pure Storage FlashArray works on; that is a major factor we can suggest to any customer. Analytical capabilities are crucial. Daily, we check the throughput and consumption, and Pure Storage FlashArray provides predictions for one year regarding usage. This prediction helps plan updates well ahead. For support, we just raise a case, and they follow up and get it done. There is also AI readiness, but with the model R2, we don't have much of that AI readiness. For others, we do have AI readiness that predicts capacity based on daily or monthly trends, enabling us to analyze how much space we need or if we need to expand the disk shelf. From an operational point of view, a good feature is that if you accidentally delete a volume, it will be retained in the destroyed state for the next twenty-four hours, which is not the same with any other vendor. I have worked in this storage domain for the past fifteen years, and this option is remarkable, benefiting any L1 or L2 engineer. Additionally, from a compliance perspective, Pure Storage FlashArray has REST APIs enabled. I have not explored automation much, but from a security standpoint, it is strong with encryption data. If you want to automate, you can easily integrate with all clouds and explore Pure Cloud for scheduling workloads, including volume creation. Customers find benefit in Pure Storage FlashArray's single management pane of glass due to the dual controller and active-active setup. If one of the controllers goes down, all workloads automatically shift to the other controller, ensuring their data is safe and accessible at all times. This is a highlighted feature that any customer desires because their data should always be accessible. For SAN workloads, we use Pure Storage FlashArray because for SAN FC fiber channel, we don't use it; we use NetApp for NAS activities. We have clearly split this, so SAN is for mission-critical applications, while network-attached storage handles file systems. This architecture helps us maximize the benefit from Pure Storage FlashArray due to the significant workloads from this giant retail client. From a footprint and energy consumption perspective, you can see energy consumption from the Pure1 storage portal on a daily basis, and it is very compact. The three models we use consume only three units, which is quite low. From a footprint and data center perspective, it doesn't occupy much space. As everything moves to cloud, there are requirements to avoid excess spending on data centers, and Pure Storage FlashArray is efficient in energy consumption and is environmentally friendly.
Sachin Prakash - PeerSpot reviewer
Assistant Consultant at a tech vendor with 10,001+ employees
Has optimized performance using cluster deployment and distributed file access but needs better visibility into network dependencies
IBM Spectrum Scale being software-based storage allows users to utilize any hardware supported or defined by IBM without dependency on physical hardware provided by IBM. This is one of the features I appreciate most because if you have existing infrastructure at your site but don't want to reinvest in hardware, you can purchase IBM Spectrum Scale software and deploy it as software-defined storage. Users can comfortably access data from their host to the storage host without relying on new network setup when deploying GPFS as it uses the existing corporate network. However, high-speed ethernet network is required. By adding switches to the same network where client hosts reside and deploying GPFS storage array, any file system created on the storage cluster can grant export permissions determining which hosts can access specific file systems. These hosts can directly mount them as remote file systems. The process is simpler compared to defining IQN for providing access to client hosts. Creating a cluster for clients with virtual machines or physical Linux/Windows machines requires installing GPFS services on client nodes, which creates a client cluster. Access is defined on the storage cluster for the particular client cluster, allowing all hosts in that client cluster to mount file systems with granted permissions.
Rifat Rahman - PeerSpot reviewer
Infrastructure Architect & CEO at Tirzok Private Limited
Offers reliable performance and availability for large deployments
I would like to see improvements in Red Hat Ceph Storage not because I necessarily think it needs improvement, but because I generally prefer to do things manually rather than following the containerization part. Current deployments are based on containers, but I deploy manually with my scripts and controls. If there are no Kubernetes-like requirements, I often prefer to deploy a whole manual process. I don't ask for improvements in the deployment model because Red Hat has its own philosophy about making things, but it's my personal choice that I prefer things manually. Some features are available only in the containerization part, so if those are also available in manual deployment, that will help.

Quotes from Members

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

Pros

"I appreciate the ease of provisioning storage on Pure Storage FlashArray."
"I used to have to manually sync storage from server to server, for multiple clusters and database storage for disaster recovery but now, that's all automated."
"I like FlashArray's ActiveCluster as well as its snapshot and cloning capabilities."
"It gives us capacity planning."
"It is simple, powerful, and a beautiful solution."
"It reduces space and the polar consumption. It also accelerates the application."
"All updates, upgrades, and hardware work are all performed on-line with no impact."
"The amount of data that I have moved to it from legacy storage has enabled us to retire units that are three or four times the physical size."
"We tested a complete site loss with the initial loss of the complete data center and the system was always up."
"It makes our file system sharing a lot easier, even across different continents. We have had file systems shared across different continents with no performance degradation."
"Allows us to share files across multiple environments."
"We use it for our data over multiple systems, and at the same time it is a shared file system that works pretty well for the most part."
"Its great servicing high availability. That is what it is used for."
"I find IBM Spectrum Scale to be an excellent product known for its fast parallel file system."
"I would rate my overall experience with IBM Spectrum Scale as nine out of ten."
"The high performance of the solution is its most valuable aspect; if you compare it to other storage solutions, it is much better."
"radosgw and librados provide a simple integration with clone, snapshots, and other functions that aid in data integrity."
"I like the distributed and self-healing nature of the product."
"We have not encountered any stability issues for the product."
"Ceph’s ability to adapt to varying types of commodity hardware affords us substantial flexibility and future-proofing."
"Replicated and erasure coded pools have allowed for multiple copies to be kept, easy scale-out of additional nodes, and easy replacement of failed hard drives, and the solution continues working even when there are errors."
"The configuration of the solution and the user interface are both quite good."
"Ceph was chosen to maintain exact performance and capacity characteristics for customer cloud."
"I would definitely recommend Red Hat Ceph Storage. It is a complete solution for cloud-native storage needs."
 

Cons

"They need to find another way of doing data protection, RAID is not working very well."
"We would like more extended historical data to help with some of the capacity planning. This is something that we are asking for all the time. E.g., what was the historical performance of this particular volume? So, we would like more historicals."
"The solution needs an integrated NAS platform, file platform."
"The main disadvantage of Pure Storage FlashArray is the price."
"I’d love to view the average, minimum and maximum performance in the reports (Analysis tab - Performance) but it is only graphics and you need to export data in CSV to find this information."
"The price of this solution is high and should be lowered."
"When it comes to Everpure FlashArray ports shown in the GUI, it would be better if, when one of the Pure array ports went down, there was a possibility to highlight that particular port which has gone down."
"In the next release, I would like to see file-level encryption."
"We do have some issues where Spectrum Scale does not work as expected. We have seen our Spectrum Scale servers go down unexpectedly, but because we have a cluster, it does not take out the entire organization."
"Making it a little easier to add bad file sets would help. There is a transition to how you add storage and how you add a file set, so making that a little smoother would probably be my recommendation."
"Initially, stability was a concern as we encountered numerous issues and errors."
"This is probably the biggest challenge, getting everything upgraded, because it just takes time. We wish it was a faster solution to be able to do everything at once, but you have do each node individually. The more nodes, the longer it takes."
"The pricing and licensing model for this solution are complex and it is sometimes difficult to explain it to customers."
"The biggest problem is that it is not able to provide block storage."
"I wish there were some graphical user interface to access the GPFS file system creation and monitoring."
"The main issue that we have now is with the encryption. They want to use more metrics in encryption, which is not working very well."
"If troubleshooting is needed, the response should be faster."
"I would like to see better performance and stability when Ceph is in recovery."
"What could be improved in Red Hat Ceph Storage is its user interface or GUI."
"Rebalancing and recovery are a bit slow."
"I've heard the integration with OpenShift is great, however, the licensing cost is excessively high."
"An area for improvement would be that it's pretty difficult to manage synchronous replication over multiple regions."
"The management features are pretty good, but they still have room for improvement."
"It took me a long time to get the storage drivers for the communication with Kubernetes up and running. The documentation could improve it is lacking information. I'm not sure if this is a Ceph problem or if Ceph should address this, but it was something I ran into. Additionally, there is a performance issue I am having that I am looking into, but overall I am satisfied with the performance."
 

Pricing and Cost Advice

"The best features come included without any additional cost."
"We purchased a license to use this solution and we pay for the storage ourselves."
"Pure Storage is expensive. It comes with features, so you get what you pay for. It is expensive compared to our old storage systems, but from the amount of human effort that you have to pay to babysit a storage system, it reduces that. I don't know if the TCO is reduced, but it's not a concern for us."
"We have seen a reduction in the TCO, because Pure Storage is partnering with Belfrics. This partnership reduces our latency and space."
"The price of Pure Storage FlashArray is expensive."
"When you are paying more than you were paying for the storage space, you'd like the cost to be less. If they could get into the spinning disk kind of cost, that would be it."
"For pricing, you have to take into account their performance on deduplication and compression in a $/GB comparison."
"The cost was initially high, but once more people were using it, the costs came down. This was because the University was reselling it to other departments."
"The licensing model is complex and depends on factors such as the number of processing cores and the amount of storage."
"The licensing is based on the number of terabytes."
"The solution is costly but reliable."
"The operational overhead is higher compared to Azure because we own the hardware."
"We never used the paid support."
"There is no cost for software."
"I rate the product’s pricing an eight out of ten."
"If you can afford a product like Red Hat Ceph Storage then go for it. If you cannot, then you need to test Ceph and get your hands dirty."
"The price of this product isn't high."
"The price of Red Hat Ceph Storage is reasonable."
"The other big advantage is that Ceph is free software. Compared to traditional SAN based storage, it is very economical."
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Top Industries

By visitors reading reviews
Manufacturing Company
13%
Comms Service Provider
10%
Financial Services Firm
10%
Outsourcing Company
9%
Financial Services Firm
16%
Construction Company
8%
Comms Service Provider
7%
Manufacturing Company
6%
Comms Service Provider
10%
Manufacturing Company
10%
Financial Services Firm
9%
Computer Software Company
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business73
Midsize Enterprise38
Large Enterprise161
By reviewers
Company SizeCount
Small Business6
Large Enterprise8
By reviewers
Company SizeCount
Small Business13
Midsize Enterprise4
Large Enterprise15
 

Questions from the Community

Which should I choose: HPE 3PAR StoreServ or Hitachi Virtual Storage Platform F Series?
Both are great platforms, but if you are considering all flash solutions, I would recommend you to consider Pure Stor...
What is your experience regarding pricing and costs for Pure Storage FlashArray?
When comparing cost, I find that the cost is either the same or slightly higher, but that is returned by the ease of ...
What needs improvement with Pure Storage FlashArray?
The only thing I think could be improved is price. The price is the main concern for our customers.
What is your experience regarding pricing and costs for IBM Spectrum Scale?
IBM Spectrum Scale functions as software-based storage, allowing users to utilize any hardware supported or defined b...
What needs improvement with IBM Spectrum Scale?
The system relies heavily on ethernet networking, and when issues occur, we must consult with the network team to inv...
What is your primary use case for IBM Spectrum Scale?
My personal use of this product is for parallel writing or reading files.
How does Red Hat Ceph Storage compare with MiniO?
Red Hat Ceph does well in simplifying storage integration by replacing the need for numerous storage solutions. This ...
What needs improvement with Red Hat Ceph Storage?
Areas of Red Hat Ceph Storage that have room for improvement include more promotion. Many people do not know about th...
What advice do you have for others considering Red Hat Ceph Storage?
I do not have experience working with solutions such as Red Hat Ceph Storage and StorPool. I have plenty of experienc...
 

Also Known As

Pure Storage FlashArray
No data available
Ceph
 

Overview

 

Sample Customers

Nielsen, Lamar Advertising, LinkedIn, Betfair, UT-Dallas
Information Not Available
Dell, DreamHost
Find out what your peers are saying about IBM Spectrum Scale vs. Red Hat Ceph Storage and other solutions. Updated: October 2026.
921,028 professionals have used our research since 2012.