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Enterprise storage systems · October 2026 Edition

Dell PowerStore vs NetApp AFF

Seven of fourteen models named Dell PowerStore first on the direct prompt; zero named NetApp AFF. Dell PowerStore was named by ten of the fourteen models and NetApp AFF by thirteen and Dell PowerStore carries 24 labels and NetApp AFF 36, so the shares are not directly comparable.

Dell PowerStore

accepted challenger

Named in one category this edition.

NetApp AFF

accepted challenger

Named in one category this edition.

First-choice share16%9%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate8%6%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#1#3A position in a field of 8; printed, not drawn.
Labels2436A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Dell PowerStore reading right to left. Rank and label count are printed, not drawn.Pure Storage FlashArray was named alongside these two in eight of the fourteen direct answers. Dell PowerStore vs Pure Storage FlashArray · Dell PowerStore vs Dell Technologies · Pure Storage FlashArray vs NetApp AFF

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen models, for a mid-market B2B company; rank is within the category; every quote names the model and the prompt it came from. Both figures come from the enterprise storage systems page.

By framing

How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
Dell PowerStoreFirst choices, of fourteen modelsNetApp AFF
Direct70
Paraphrase132 against Dell PowerStore
Comparative11
Budget-constrained11
Scale-constrained01
Negative012 against NetApp AFF
Bars are first choices, 0 to 14 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to fourteen.

Across every category in the October 2026 Edition, Dell PowerStore and NetApp AFF were named in the same answer thirty-two times, of the 64 answers naming Dell PowerStore and the 114 naming NetApp AFF. In those answers NetApp AFF took the first choice five times and Dell PowerStore eight.

Every model, every framing

The eighty-four answers behind the chart above, one cell each: where Dell PowerStore and NetApp AFF stood in it.
ModelDirectParaphraseComparativeBudget-constrainedScale-constrainedNegative
Claude Haiku 4.5
GPT-5.4 mini
Gemini 3.5 Flash
Perplexity Sonar
Grok 4.1 Fast
Mistral Small
DeepSeek V4 Flash
Llama 4 Maverick
Qwen 3.7 Flash
Kimi K2
GLM 4.7 FlashX
MiniMax M2.5
GPT-6 Luna
Muse Glimmer 30B
Dell PowerStore NetApp AFF first choice named as an alternative argued againstblank: not namedEach cell is one answer, Dell PowerStore on the left and NetApp AFF on the right.

The direct prompt

The plain question, one answer per model, grouped by where Dell PowerStore and NetApp AFF stood in it.

Dell PowerStore first, NetApp AFF an alternative

7 of 14 modelsNetApp AFF was named in the answer but not as the choice, or not at all.
GPT-5.4 miniDell PowerStore, HPE Alletra Storage MP B10000
Perplexity SonarDell PowerStore alternatives: Dell Unity XT, HPE Alletra Storage MP B10000, NetApp AFF
Grok 4.1 FastDell PowerStore alternatives: HPE Alletra Storage MP, Pure Storage FlashArray
DeepSeek V4 FlashDell PowerStore alternatives: NetApp AFF / FAS Series, Pure Storage FlashArray
Qwen 3.7 FlashDell PowerStore alternatives: HPE Alletra 9000, Hitachi Vantara VSP One, Pure Storage FlashArray
Kimi K2Dell PowerStore alternatives: HPE Alletra Storage MP B10000, NetApp AFF, Pure Storage FlashArray
GPT-6 LunaDell PowerStore alternatives: FlashArray//X, HPE Alletra Storage MP B10000, IBM FlashSystem, NetApp AFF, Pure Storage FlashArray//C

Neither was the first choice, one was named

2 of 14 modelsThe answer put something else first and named one of the two as an alternative.
Gemini 3.5 FlashDell Technologies, Pure Storage FlashArray alternatives: HPE, NetApp AFF
Muse Glimmer 30BDell Technologies alternatives: HPE, NetApp AFF, Pure Storage FlashArray

Neither was named

5 of 14 modelsThe answer made no first choice from these two in this category.
Claude Haiku 4.5no first choice
Mistral SmallInfinidat InfiniBox SSA G4 F4416T, Weka WEKApod alternatives: Dell EMC PowerStore, Pure Storage FlashArray
Llama 4 Maverickno first choice
GLM 4.7 FlashXDell EMC PowerStore alternatives: Infinidat InfiniBox, NetApp AFF C-Series, Pure Storage FlashArray
MiniMax M2.5no first choice

Bold names in an answer are the products the judge labeled a first choice; a model naming several gives each of them that label. The full answer text for every row is in the record.

By buyer segment

The same question asked on behalf of a different buyer. Each standing is computed within its segment and they are never added together. The figures above are the mid-market standing, which is the one the category orders by.
Small business
Dell PowerStore leads by five points.
Dell PowerStore11%#1 of 9
NetApp AFF6%#4 of 9
The full small business standing →
Mid-marketThe figures above
Dell PowerStore leads by seven points.
Dell PowerStore16%#1 of 8
NetApp AFF9%#3 of 8
The full mid-market standing →
Enterprise
The order flips: NetApp AFF leads at enterprise.
NetApp AFF21%#2 of 9
Dell PowerStore7%#3 of 9
The full enterprise standing →

What the models said about Dell PowerStore

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Five of six in this category shown.

“However, GigaOm has recently demoted Dell to the "Challenger" ring in the midsize market.” DeepSeek V4 Flash · paraphrase prompt · soft negative
“Caveat: Higher operational complexity, less mature cloud integration” Kimi K2 · paraphrase prompt · soft negative
“A versatile all-flash system for mixed block and file workloads... A common choice when an organization wants one system for varied workloads.” GPT-6 Luna · comparative prompt · first choice
“the Dell PowerStore 500T / 3500 is the most frequently referenced best-value enterprise all-flash midrange” Muse Glimmer 30B · budget prompt · first choice
“The Best All-Rounder: Dell PowerStore ... is the safest and most versatile choice.” Qwen 3.7 Flash · direct prompt · first choice

What the models said about NetApp AFF

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Five of six in this category shown.

“many long-time NetApp users have expressed anxiety about long-term innovation priorities and vendor reliability” Qwen 3.7 Flash · negative prompt · soft negative
“NetApp's entry-level E-series (E2800/E5700) are classic examples... limited scale-out capability” DeepSeek V4 Flash · negative prompt · soft negative
“NetApp AFF A-Series, typically AFF A250 for entry mid-market or AFF A50 for midrange growth, is the most consistently recommended primary storage today” Muse Glimmer 30B · paraphrase prompt · first choice
“Best budget-friendly enterprise storage array: a TrueNAS enterprise appliance or a small NetApp hybrid array” GPT-5.4 mini · budget prompt · first choice
“Products like Dell PowerStore, NetApp AFF, or Pure Storage FlashArray//X are well-suited for your scale” MiniMax M2.5 · scale prompt · first choice
Also compared
Dell PowerStore vs Pure Storage FlashArrayDell PowerStore vs Dell TechnologiesPure Storage FlashArray vs NetApp AFFNetApp AFF vs Dell TechnologiesAll six head-to-head pages and the full enterprise storage standing

Comparisons are drawn for the top eight products in each category, each against each. The output is the models' output; nothing here is a recommendation by the index.