2019-04-14T15:29:00Z
Miriam Tover - PeerSpot reviewer
Service Delivery Manager at PeerSpot (formerly IT Central Station)
  • 5
  • 150

When it comes to performance and pricing, what is the biggest difference between Dell EMC Unity and IBM FlashSystem?

Hi community,

One of the most popular comparisons on IT Central Station is Dell EMC Unity vs IBM FlashSystem.

People like you are trying to decide which one is best for their company. Can you help them out?

When it comes to performance and pricing, what is the biggest difference between Dell EMC Unity and IBM FlashSystem? 

Thanks for helping your peers make the best decision!

3
PeerSpot user
3 Answers
BobWhitcombe - PeerSpot reviewer
Technical Solutions Architect at a computer software company with 201-500 employees
MSP
Top 5
2021-08-24T20:48:33Z
Aug 24, 2021

As with any engineered solution, it depends on your needs.  


However, the bottom line is that for their target markets Dell EMC Unity will generally have a better price at parity performance over IBM's FlashSystem.  


Both are focused on All-Flash arrays and Dell EMC Unity is where I start with VMWare. If I have a dedicated IBM DB2 application, I would lean toward the IBM FlashSystem. 


The problem in the VMWare environment is that IBM has done a poor job prioritizing this area and has several I/O bottlenecks and interface driver issues. I expect future resolution, but does that happen before current platforms evolve?

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MB
CEO/co-founder at a tech services company with 1-10 employees
Real User
2021-08-24T08:12:30Z
Aug 24, 2021

Depends what you're expecting. Full compatibility with VMware environment - DellEMC only, IBM FS has problems with iSCSI connections to vsphere 7.02 - it's not supported (FS5200 and vsphere 7.02 server with Intel cards - doesn't work fast (10Gbe - 300MB/s instead of 1,1-1,2 GB/s), no solution for now from IBM and VMware (08/2021). Integration - DellEMC and VMware are one company - everything goes smoothly. Space reclamation didn't work well on IBM systems when connected to vsphere (vsphere 6.5 and V7000 models). When using Microsoft virtualization - no difference - it's more complex to start system but when properly configured - it runs well (fast). But of both of them I would choose HPE systems,:-) (Nimble or Primera):-)

SM
Principal with 11-50 employees
User
2019-04-17T21:19:54Z
Apr 17, 2019

EMC's Unity is not comparable to the performance of an IBM FlashSystem option, but it is fairly close in performance profile to the just released Storewize V5100 model 424. If you provide the initial amount of storage you are going to purchase and your expected capacity growth rate, plus any workoad/performance info you have on hand, and we will give you a very quick TCO and performance comparison.i

Find out what your peers are saying about Dell Unity XT vs. IBM FlashSystem and other solutions. Updated: November 2022.
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